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PostPosted: Oct 13, 2018 02:27    Post subject: The Best Way to Block Them – Really  

The Best Way to Block Them – Really

More Toys for the Boys – and girls if they are so inclined.

Below are two photos of some of my gage blocks. These are also known as Johansson gauges, slip gauges, or Jo blocks. The individual gauge block is a stainless steel that has been precision ground and lapped to a specific thickness. This enables you to do really precision work, but they can also be used to check the accuracy of a micrometer or Vernier caliper.

When clean they exhibit a property known as wringing. When placed against each other they stick together and behave like magnets.



Gage Blocks.jpg
 Description:
 Viewed:  835 Time(s)

Gage Blocks.jpg



GAGE BLOCK CERTIFICATE.jpg
 Description:
 Viewed:  850 Time(s)

GAGE BLOCK CERTIFICATE.jpg


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PostPosted: Oct 13, 2018 16:29    Post subject: The Many Faces of a Navajun Pyrite  

The Many Faces of a Navajun Pyrite

Below are a few photos of another of my Spanish pyrite specimens from Navajun. It is composed of two intersection pyrite cubes, one being the dominant. The larger cube is about 40 mm on edge, and the smaller cube about 30 mm on edge.

I am amazed that these specimens are extracted with little or no damage given the nature of the host rock. Beautiful!



Another Navajun Pyrite 1.jpg
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Dimensions: 50 mm x 50 mm x 50 mm
 Description:
 Viewed:  779 Time(s)

Another Navajun Pyrite 1.jpg



Another Navajun Pyrite 2.jpg
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Dimensions: 50 mm x 50 mm x 50 mm
 Description:
 Viewed:  779 Time(s)

Another Navajun Pyrite 2.jpg



Another Navajun Pyrite 3.jpg
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Description:
 Viewed:  779 Time(s)

Another Navajun Pyrite 3.jpg



Another Navajun Pyrite 4.jpg
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Dimensions: 50 mm x 50 mm x 50 mm
 Description:
 Viewed:  777 Time(s)

Another Navajun Pyrite 4.jpg



Another Navajun Pyrite 5.jpg
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Dimensions: 50 mm x 50 mm x 50 mm
 Description:
 Viewed:  777 Time(s)

Another Navajun Pyrite 5.jpg


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PostPosted: Oct 13, 2018 18:52    Post subject: Crocoite – Anyone!!!  

Crocoite – Anyone!!!

Below are a few photographs taken under the microscope of a few terminated Crocoite crystals that I found in one of my boxes. The crystals range in size from 5 mm to 20 mm.

In the photographs I have attempted to emphasize, color, termination and striations of the individual crystals.

Enjoy!!



Crocoite 1.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  765 Time(s)

Crocoite 1.jpg



Crocoite 2.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  764 Time(s)

Crocoite 2.jpg



Crocoite 3.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  763 Time(s)

Crocoite 3.jpg



Crocoite 4.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  763 Time(s)

Crocoite 4.jpg



Crocoite 5.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  764 Time(s)

Crocoite 5.jpg



Crocoite 6.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  766 Time(s)

Crocoite 6.jpg



Crocoite 7.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  764 Time(s)

Crocoite 7.jpg



Crocoite 8.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  763 Time(s)

Crocoite 8.jpg



Crocoite 9.jpg
 Mineral: Crocoite
 Locality:
Adelaide Mine, Dundas, Zeehan District, West Coast Council, Tasmania, Australia
 Dimensions: Field of view about 4 mm
 Description:
 Viewed:  763 Time(s)

Crocoite 9.jpg


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PostPosted: Oct 13, 2018 21:03    Post subject: Chalcopyrite with Quartz and unknowns  

Chalcopyrite with Quartz and unknowns

Below are a few photographs of another of my Chinese mineral specimens from the Yaogangxian mine.

I have also taken a few under the microscope, which indicates that there is another mineral present. The unknown can be found as inclusions in many of the Quartz crystals and occurs with and within some of the Chalcopyrite crystals.

Enjoy!!



Chalcopyrite on Quartz 1.jpg
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 60 mm x 35 mm x 35 mm
 Description:
 Viewed:  750 Time(s)

Chalcopyrite on Quartz 1.jpg



Chalcopyrite on Quartz 2.jpg
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 60 mm x 35 mm x 35 mm
 Description:
 Viewed:  751 Time(s)

Chalcopyrite on Quartz 2.jpg



Chalcopyrite on Quartz - Under the Microscope 1.JPG
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  750 Time(s)

Chalcopyrite on Quartz - Under the Microscope 1.JPG



Chalcopyrite on Quartz - Under the Microscope 2.JPG
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  750 Time(s)

Chalcopyrite on Quartz - Under the Microscope 2.JPG



Chalcopyrite on Quartz - Under the Microscope 3.JPG
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  751 Time(s)

Chalcopyrite on Quartz - Under the Microscope 3.JPG



Chalcopyrite on Quartz - Under the Microscope 4.JPG
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  753 Time(s)

Chalcopyrite on Quartz - Under the Microscope 4.JPG



Chalcopyrite on Quartz - Under the Microscope 5.JPG
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  750 Time(s)

Chalcopyrite on Quartz - Under the Microscope 5.JPG



Chalcopyrite on Quartz - Under the Microscope 6.JPG
 Mineral: Chalcopyrite with Quartz and unknowns
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  751 Time(s)

Chalcopyrite on Quartz - Under the Microscope 6.JPG


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PostPosted: Oct 14, 2018 01:14    Post subject: Yaogangxian Mine  

Yaogangxian Mine

Below is another of my specimens from the Yaogangxian Mine. It is in fact a melange of minerals dominated by Cassiterite, Arsenopyrite, Muscovite and Quartz. The Cassiterite occur as well formed crystals or perhaps even twins, and the muscovite as small balls. The quartz is crystal clear and pristine.



Cassiterite, Arsenopyrite, Muscovite withe Quartz 1.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 90 mm x 60 mm x 60 mm
 Description:
 Viewed:  724 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz 1.jpg



Cassiterite, Arsenopyrite, Muscovite withe Quartz 2.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 90 mm x 60 mm x 60 mm
 Description:
 Viewed:  724 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz 2.jpg



Cassiterite, Arsenopyrite, Muscovite withe Quartz 3.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 90 mm x 60 mm x 60 mm
 Description:
 Viewed:  723 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz 3.jpg



Cassiterite, Arsenopyrite, Muscovite withe Quartz 4 - BOTTOM.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 90 mm x 60 mm x 60 mm
 Description:
 Viewed:  723 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz 4 - BOTTOM.jpg



Cassiterite, Arsenopyrite, Muscovite withe Quartz - CLOSEUP 1.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 40 mm
 Description:
 Viewed:  726 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz - CLOSEUP 1.jpg



Cassiterite, Arsenopyrite, Muscovite withe Quartz - CLOSEUP 2.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 40 mm
 Description:
 Viewed:  723 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz - CLOSEUP 2.jpg



Cassiterite, Arsenopyrite, Muscovite withe Quartz - CLOSEUP 3.jpg
 Mineral: Cassiterite, Arsenopyrite, Muscovite and Quartz
 Locality:
Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
 Dimensions: Field of view about 40 mm
 Description:
 Viewed:  724 Time(s)

Cassiterite, Arsenopyrite, Muscovite withe Quartz - CLOSEUP 3.jpg


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PostPosted: Oct 14, 2018 02:03    Post subject: Radioactive Minerals – Let’s Build a Detector – Part 2  

Another installment into the wonderful world of kitchen table physics.


SCINTILLATOR COUNTER PRE-TRIALS.jpg
 Description:
Circuit boards were made for the power supply and main counting board using basic ‘at-home’ PCB fabrication techniques. It is really a lot easier than it looks, and all the material needed to make such boards can still be purchased from Radio Shack or online.

The big black sausage looking thing in the middle of the photo is the photomultiplier tube with scintillator crystal attached and covered in light-fast tape. It is important that light be excluded before the tube is powered – lest you will destroy it instantly!

At this point the light was flashing madly and the headphone was producing lots of clicks, and the counts were being registered on the LCD (green screen) shown in the lower left of the photograph.
 Viewed:  712 Time(s)

SCINTILLATOR COUNTER PRE-TRIALS.jpg



PHOTOMULTIPLIER TUBE.jpg
 Description:
I have also included a photo of the PMT used. I got this one on EBay for about $20, and it was in first-rate condition.
 Viewed:  713 Time(s)

PHOTOMULTIPLIER TUBE.jpg



SCINTILLATOR CRYSTALS BGO LYSO.jpg
 Description:
I have also included a photo of the scintillator material used. I decided to stick with BGO. The crystal was also purchased on EBay for about $10.

Bismuth germanium oxide or bismuth germinate = BGO
Cerium doped Lutetium based scintillation crystal = LYSO
 Viewed:  714 Time(s)

SCINTILLATOR CRYSTALS BGO LYSO.jpg



SOCKET ASSEMBLY.jpg
 Description:
If you ever buy a PMT on line make sure you get the socket assembly. Without it you will have bought a nightmare. I have included a photo.

The Hamamatsu E2037 - 01 socket assembly. At the top right in the photo on the left you can see the ‘short’ pin marked with a white arrow. It has no internal electrical contact. The figure on the top right shows the rear of the R1548 photomultiplier tube. The ‘short’ or cut pin is the alignment pin for the socket. The bottom photograph shows the socket assembly and the connecting wires.
 Viewed:  713 Time(s)

SOCKET ASSEMBLY.jpg


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PostPosted: Oct 14, 2018 16:00    Post subject: Romancing over Romania  

Romancing over Romania

Below are a few photographs of another of my Romanian minerals. It is Galena with Siderite from the Turt Mine. The Galena crystals are very sharp, bright and complex, and the Siderite that is associated with them adds a beautiful contrast.

I have a great affection for Romanian minerals - they are just so lovely. Sadly many of the Romanian mines that produced a plethora of mineralogical treasures are now closed, and in many cases flooded.



Turt Galena with Siderite 1.jpg
 Mineral: Galena with Siderite
 Locality:
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania
 Dimensions: 110 mm x 90 mm x 60 mm
 Description:
 Viewed:  653 Time(s)

Turt Galena with Siderite 1.jpg



Turt Galena with Siderite 2.jpg
 Mineral: Galena with Siderite
 Locality:
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania
 Dimensions: 110 mm x 90 mm x 60 mm
 Description:
 Viewed:  635 Time(s)

Turt Galena with Siderite 2.jpg



Turt Galena with Siderite 3.jpg
 Mineral: Galena with Siderite
 Locality:
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania
 Dimensions: 110 mm x 90 mm x 60 mm
 Description:
 Viewed:  636 Time(s)

Turt Galena with Siderite 3.jpg



Turt Galena with Siderite 4.jpg
 Mineral: Galena with Siderite
 Locality:
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania
 Dimensions: 110 mm x 90 mm x 60 mm
 Description:
 Viewed:  635 Time(s)

Turt Galena with Siderite 4.jpg



Turt Galena with Siderite 5.jpg
 Mineral: Galena with Siderite
 Locality:
Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania
 Dimensions: 110 mm x 90 mm x 60 mm
 Description:
 Viewed:  637 Time(s)

Turt Galena with Siderite 5.jpg


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PostPosted: Oct 14, 2018 20:01    Post subject: Perusing Peru – A Crazy Arsenopyrite  

Perusing Peru – A Crazy Arsenopyrite

Below are a couple of photos of one of my many Peruvian minerals. It is an arsenopyrite from the Huanzala mine. I was told by the vendor that only a few specimens of the type shown in the photographs were recovered. The crystals look like little spears and there are oodles of them.

I have also included a few photographs of some of the individual crystal and crystal groups taken under the microscope – breathtaking!

Enjoy!



Peru Arsenopyrite 1.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: 60 mm x 60 mm x 60 mm
 Description:
 Viewed:  609 Time(s)

Peru Arsenopyrite 1.jpg



Peru Arsenopyrite 2.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: 60 mm x 60 mm x 60 mm
 Description:
 Viewed:  611 Time(s)

Peru Arsenopyrite 2.jpg



Peru Arsenopyrite 3.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: 60 mm x 60 mm x 60 mm
 Description:
 Viewed:  610 Time(s)

Peru Arsenopyrite 3.jpg



Peru Arsenopyrite 4.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: 60 mm x 60 mm x 60 mm
 Description:
 Viewed:  610 Time(s)

Peru Arsenopyrite 4.jpg



Peru Arsenopyrite - Under the Microscope 1.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  610 Time(s)

Peru Arsenopyrite - Under the Microscope 1.jpg



Peru Arsenopyrite - Under the Microscope 2.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  609 Time(s)

Peru Arsenopyrite - Under the Microscope 2.jpg



Peru Arsenopyrite - Under the Microscope 3.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  609 Time(s)

Peru Arsenopyrite - Under the Microscope 3.jpg



Peru Arsenopyrite - Under the Microscope 4.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  609 Time(s)

Peru Arsenopyrite - Under the Microscope 4.jpg



Peru Arsenopyrite - Under the Microscope 5.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  610 Time(s)

Peru Arsenopyrite - Under the Microscope 5.jpg



Peru Arsenopyrite - Under the Microscope 6.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  609 Time(s)

Peru Arsenopyrite - Under the Microscope 6.jpg



Peru Arsenopyrite - Under the Microscope 7.jpg
 Mineral: Arsenopyrite
 Locality:
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  609 Time(s)

Peru Arsenopyrite - Under the Microscope 7.jpg


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PostPosted: Oct 14, 2018 20:30    Post subject: Re: Collection of Machines, Metals and Minerals  

Pierre Joubert wrote:
Thank you RA for this detailed thread. I hope all your hard work is in preparation for your book.


Dear Pierre:

I noted that I had not responded to a question posed by you a few days ago.

My book may include some of the things I post here on FMF.

I have never been shy of hard-work, and to pay my way through University some 50 years ago I worked in heavy industry on a hot press. It was hard work, and you worked with two other men in a 45 minute rotating shift! You spent 15 minutes putting many 30lb disks into a furnace, you spent the next 15 minutes putting the red hot disks in the press (hammer forge) and stacking them. And you had 15 minutes rest. Pumping Iron - which I still do even at my age, but not with 30lb red hot disks.

My contributions on FMF are just for my amusement and pleasure, but I hope I am helping others viewers too, especially young viewers who need to get back into the habit of doing things for themselves – learning new and old skills and not being shy of getting their hands dirty. Sadly, the modern ‘nanny-state’ is creating a generation of young folk who know absolutely nothing. I come across many young men who do not even know how to change a flat tire or gap a spark plug.

The irony of it all is that there is so much more available to the inquiring mind today than in my youth, and at a price that makes my head spin. The 100 MHz Digital Storage Oscilloscope I showed would have been impossible to buy when I was a young ham radio operator. You would be struggling to get your hands on a 10MHz analog oscilloscope.

I intend not to stop until I drop!!!
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PostPosted: Oct 14, 2018 20:54    Post subject: Have you got balls??  

Have you got balls??


Below are a few of my balls. The two at the back are Cadmium, and the one at the front is Zinc. I am in the process of sourcing other elements in the form of balls too.

There are many ways to display, in an eye-appealing manner, the chemical elements, and I have shown two – periodic table and apothecary jars.

I plan to turn these balls on the lathe and polish them to a high luster. When prepared well they can look absolutely fantastic.

Remember true value – real money – rests with taking the ordinary and adding value to it through the judicious application of industry and intellect.



BALLS!.jpg
 Description:
Ball weigh about 500 grams and are about, and I mean about 50 mm in diameter.
 Viewed:  599 Time(s)

BALLS!.jpg


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PostPosted: Oct 15, 2018 01:18    Post subject: Cubic Pyrite Crystals From China  

Shangbao Pyrite

I have a few minerals from the Shangbao Mine, including three pyrite specimens.


Below are a few photographs of one of my smaller specimens. It comprises pristine cubes of Pyrite on a coarse (to the touch) Quartz matrix. All the Pyrite crystals display the cubic crystal form with corner modifications. The largest Pyrite cube is 25 mm on edge. The matrix is quartz, but the texture and morphology of the quartz crystals is truly amazing.

I have included a few photos taken under the microscope. Truly a world of wonder!

Enjoy!



Shangbao Pyrite Cubes 1.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: 70 mm x 60 mm x 50 mm
 Description:
 Viewed:  576 Time(s)

Shangbao Pyrite Cubes 1.jpg



Shangbao Pyrite Cubes 2.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: 70 mm x 60 mm x 50 mm
 Description:
 Viewed:  574 Time(s)

Shangbao Pyrite Cubes 2.jpg



Shangbao Pyrite Cubes 3.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: 70 mm x 60 mm x 50 mm
 Description:
 Viewed:  573 Time(s)

Shangbao Pyrite Cubes 3.jpg



Shangbao Pyrite Cubes 4.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: 70 mm x 60 mm x 50 mm
 Description:
 Viewed:  573 Time(s)

Shangbao Pyrite Cubes 4.jpg



Shangbao Pyrite Cubes 5 - BOTTOM.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: 70 mm x 60 mm x 50 mm
 Description:
 Viewed:  575 Time(s)

Shangbao Pyrite Cubes 5 - BOTTOM.jpg



Shangbao Pyrite Cubes - Close up 1.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 40 mm
 Description:
 Viewed:  573 Time(s)

Shangbao Pyrite Cubes  - Close up 1.jpg



Shangbao Pyrite Cubes - Close up 2.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 40 mm
 Description:
 Viewed:  571 Time(s)

Shangbao Pyrite Cubes  - Close up 2.jpg



Shangbao Pyrite Cubes - Under the Microscope 1.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
Crazy Quartz!
 Viewed:  571 Time(s)

Shangbao Pyrite Cubes  - Under the Microscope 1.jpg



Shangbao Pyrite Cubes - Under the Microscope 2.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
Crazy Quartz!
 Viewed:  572 Time(s)

Shangbao Pyrite Cubes  - Under the Microscope 2.jpg



Shangbao Pyrite Cubes - Under the Microscope 3.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
Corner Modification on the largest cube
 Viewed:  571 Time(s)

Shangbao Pyrite Cubes  - Under the Microscope 3.jpg



Shangbao Pyrite Cubes - Under the Microscope 4.jpg
 Mineral: Pyrite on Quartz
 Locality:
Shangbao Mine, Leiyang, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
Even the tiny ones have modifications!
 Viewed:  571 Time(s)

Shangbao Pyrite Cubes  - Under the Microscope 4.jpg


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PostPosted: Oct 15, 2018 02:47    Post subject: Vexing Over Verniers  

Vexing Over Verniers

Below are four of my Vernier Calipers. The one at the top has a 200 mm range and the others have a range of 150 mm. They are digital except the one with an analog dial, second from the top. The digital ones can read in both metric and imperial.

For many measurements in the machine shop you do not need the accuracy of a Micrometer. Generally you do all your rough cuts only using the Vernier Caliper as the measuring instrument. The final fine cuts are then measured with the micrometer.

These Vernier Calipers can be used for just about anything involving distance measurements in the 150/200 mm range, even measuring the width of a nice Pyrite cube from Spain.

Enjoy!



Vernier Calipers.jpg
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 Viewed:  559 Time(s)

Vernier Calipers.jpg


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PostPosted: Oct 15, 2018 02:58    Post subject: We Breath it but can we eat it!  

We Breath it but can we eat it!

Group 16 of the Periodic Table of the Chemical Elements has many fascinating members. At the top of the group we have Oxygen, which we breathe and at the bottom is Polonium, which is highly toxic as well as being highly radioactive. Between Oxygen and Polonium we have a very interesting group of elements – Sulphur, Selenium and Tellurium. Below are two photos (front and back) of the elements I encapsulated. Selenium also occurs in a form known as red Selenium.

Enjoy!



GROUP 16 FRONT.jpg
 Description:
 Viewed:  552 Time(s)

GROUP 16 FRONT.jpg



GROUP 16 BACKSIDE.jpg
 Description:
 Viewed:  551 Time(s)

GROUP 16 BACKSIDE.jpg


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PostPosted: Oct 15, 2018 16:27    Post subject: Hematite from Argentina  

Hematite from Argentina

Below is one of my Hematite (after Magnetite) specimens that were recovered from the Volcán Payún Matru, before the Argentinian government put a ban on collecting at the site. They have a beautiful and shimmering metallic luster. The morphology of the crystals is weird and interesting.

All the specimens I have are attracted to a magnet.

I have included a few photographs taken under the microscope, which shows the crystal surfaces are themselves covered with crystal. Interesting!

Enjoy!



Argentinian Hematite (after Magnetite) 1.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  482 Time(s)

Argentinian Hematite (after Magnetite) 1.jpg



Argentinian Hematite (after Magnetite) 2.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  481 Time(s)

Argentinian Hematite (after Magnetite) 2.jpg



Argentinian Hematite (after Magnetite) 3.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  482 Time(s)

Argentinian Hematite (after Magnetite) 3.jpg



Argentinian Hematite (after Magnetite) 4.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  481 Time(s)

Argentinian Hematite (after Magnetite) 4.jpg



Argentinian Hematite (after Magnetite) 5.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  482 Time(s)

Argentinian Hematite (after Magnetite) 5.jpg



Argentinian Hematite (after Magnetite) 6.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  483 Time(s)

Argentinian Hematite (after Magnetite) 6.jpg



Argentinian Hematite (after Magnetite) 7.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: 70 mm x 50 mm x 35 mm
 Description:
 Viewed:  485 Time(s)

Argentinian Hematite (after Magnetite) 7.jpg



Argentinian Hematite (after Magnetite) - Under the Microscope 1.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  481 Time(s)

Argentinian Hematite (after Magnetite) - Under the Microscope 1.jpg



Argentinian Hematite (after Magnetite) - Under the Microscope 2.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  485 Time(s)

Argentinian Hematite (after Magnetite) - Under the Microscope 2.jpg



Argentinian Hematite (after Magnetite) - Under the Microscope 3.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  481 Time(s)

Argentinian Hematite (after Magnetite) - Under the Microscope 3.jpg



Argentinian Hematite (after Magnetite) - Under the Microscope 4.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  482 Time(s)

Argentinian Hematite (after Magnetite) - Under the Microscope 4.jpg



Argentinian Hematite (after Magnetite) - Under the Microscope 5.jpg
 Mineral: Hematite
 Locality:
Payún Matru Volcano, Malargüe, Malargüe Department, Mendoza Province, Argentina
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  481 Time(s)

Argentinian Hematite (after Magnetite) - Under the Microscope 5.jpg


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PostPosted: Oct 15, 2018 18:01    Post subject: Pyrite Balls from China  

Pyrite Balls from China

Below are a couple of photographs of one of my Pyrite balls from China. According to my contact in China these were recovered at the Baifang Coal Mine. They make great decorator pieces, and are very interesting in their own right. I have included a few photographs taken under the microscope..

Enjoy!



Chinese Pyrite Ball 1.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: 90 mm x 50 mm x 50 mm
 Description:
 Viewed:  465 Time(s)

Chinese Pyrite Ball 1.jpg



Chinese Pyrite Ball 2.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: 90 mm x 50 mm x 50 mm
 Description:
 Viewed:  466 Time(s)

Chinese Pyrite Ball 2.jpg



Chinese Pyrite Ball 3.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: 90 mm x 50 mm x 50 mm
 Description:
 Viewed:  466 Time(s)

Chinese Pyrite Ball 3.jpg



Chinese Pyrite Ball 4.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: 90 mm x 50 mm x 50 mm
 Description:
 Viewed:  466 Time(s)

Chinese Pyrite Ball 4.jpg



Chinese Pyrite Ball - Under the Microscope 1.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  466 Time(s)

Chinese Pyrite Ball  - Under the Microscope 1.jpg



Chinese Pyrite Ball - Under the Microscope 2.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  465 Time(s)

Chinese Pyrite Ball  - Under the Microscope 2.jpg



Chinese Pyrite Ball - Under the Microscope 3.jpg
 Mineral: Pyrite
 Locality:
Baifang Mine, Changning, Hengyang Prefecture, Hunan Province, China
 Dimensions: Field of view about 3 mm
 Description:
 Viewed:  467 Time(s)

Chinese Pyrite Ball  - Under the Microscope 3.jpg


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PostPosted: Oct 16, 2018 01:11    Post subject: Hematite with Quartz  

Hematite with Quartz

I have included a few photographs of another of my English Classic specimens. This one shows the association of Hematite (Specularite/Kidney ore) with Quartz.

I have also included a few photographs taken under the microscope, which show the specimen is covered in oodles of thin hexagonal plates of Hematite. The Hematite plates grow between individual Kidney Ore layers. Some of the Quartz crystal exhibit inclusions of hematite in the form of thick, for microscopic standards, hexagonal plates.

Enjoy!!



Hematite with Quartz - 1 - FRONT.jpg
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: 90 mm x 90 mm x 40 mm
 Description:
 Viewed:  431 Time(s)

Hematite with Quartz - 1 - FRONT.jpg



Hematite with Quartz - 2 - REAR.jpg
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: 90 mm x 90 mm x 40 mm
 Description:
 Viewed:  433 Time(s)

Hematite with Quartz - 2 - REAR.jpg



Hematite with Quartz - 3 - Quartz side 1.jpg
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: 90 mm x 90 mm x 40 mm
 Description:
 Viewed:  432 Time(s)

Hematite with Quartz - 3 - Quartz side 1.jpg



Hematite with Quartz - 4 - Quartz side 2.jpg
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: 90 mm x 90 mm x 40 mm
 Description:
 Viewed:  432 Time(s)

Hematite with Quartz - 4 - Quartz side 2.jpg



Hematite with Quartz - 5 - Hematite side 1.jpg
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: 90 mm x 90 mm x 40 mm
 Description:
 Viewed:  431 Time(s)

Hematite with Quartz - 5 - Hematite side 1.jpg



Hematite with Quartz - 6 - Quartz side 3.jpg
 Mineral: Hematite
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: 90 mm x 90 mm x 40 mm
 Description:
 Viewed:  431 Time(s)

Hematite with Quartz - 6 - Quartz side 3.jpg



Hematite Crystal Plates 1.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  431 Time(s)

Hematite Crystal Plates 1.JPG



Hematite Crystal Plates 2.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  432 Time(s)

Hematite Crystal Plates 2.JPG



Hematite Grown between Kidney Layers 1.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  431 Time(s)

Hematite Grown between Kidney Layers 1.JPG



Hematite Grown between Kidney Layers 2.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  431 Time(s)

Hematite Grown between Kidney Layers 2.JPG



Hematite Plate in Quartz Crystal.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  434 Time(s)

Hematite Plate in Quartz Crystal.JPG



Hematite Crystal at boundary.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  431 Time(s)

Hematite Crystal at boundary.JPG



Hematite Crystal between Kidney Layer 2.JPG
 Mineral: Hematite with Quartz
 Locality:
Ullcoats Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England, United Kingdom
 Dimensions: Field of view about 2 mm
 Description:
 Viewed:  432 Time(s)

Hematite Crystal between Kidney Layer 2.JPG


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PostPosted: Oct 16, 2018 02:25    Post subject: Chemical Elements  

Chemical Elements

Below is a photograph of the group-4 d-block elements, Titanium, Zirconium and Hafnium before I encased them in plastic.

Titanium is very easy to source in ‘reasonable’ sized rods, bar and plates from China at a reasonable cost.

Zirconium was obtained as 3 mm thick plates, which were cut to size.

The Hafnium shown in the photo was part of a thick hollow cylinder. The outer surface of the cylinder was composed of Hafnium crystals.



GROUP 4 NEW.jpg
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 Viewed:  416 Time(s)

GROUP 4 NEW.jpg


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PostPosted: Oct 16, 2018 07:40    Post subject: Re: Collection of Machines, Metals and Minerals  

Thank you for the pyrite's. I find them interesting and affordable.


twined pyrite.JPG
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Description:
Twinned pyrite
 Viewed:  386 Time(s)

twined pyrite.JPG


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PostPosted: Oct 16, 2018 07:44    Post subject: Re: Collection of Machines, Metals and Minerals  

another view.


twinned pyrite.JPG
 Mineral: Pyrite
 Locality:
Navajún, Comarca Cervera, La Rioja, Spain
 Description:
another view of twinned pyrite.
 Viewed:  387 Time(s)

twinned pyrite.JPG


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PostPosted: Oct 16, 2018 15:00    Post subject: On the prices of minerals  

R Saunders wrote:
another view.


That is a fine cluster, and you are very correct about affordability. You can get some outstanding specimens of pyrite, galena and sphalerite at very competitive prices. The Trepca complex and the Bulgarian mines are still producing some great display quality material.

ON THE PRICES OF MINERALS

Sadly, the price of most specimens seems to be going up and up and up. I saw this coming when minerals started to attract the “art” label. Anything that has “art” or indeed “science” attached to it tends to attract much higher prices than normal.

I have been very fortunate to foster friendships with a few vendors in the United States, and these people have been in the mineral business for decades. They know many of the leading figures at the Mineralogical Record personally. I have been able to acquire some specimens at wholesale prices and even cost. I know I could not have afforded to buy them at the asking retail price. Through them I was able to develop contacts in places as far away as China.
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