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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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 Posted: Jul 06, 2022 13:35 Post subject: Bulgaria - Silvia's Collection |
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A large cabinet specimen of interlocking cubic crystals of Galena associated with Calcite. The luster of the Galena is outstanding – mirror like in fact. Some of the Galena crystals show corner modifications while others have dimpled and speckled surfaces.
Very heavy specimen at over 2 kilograms.
| Mineral: | Galena, Calcite |
| Locality: | | Krushev dol Mine, Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria |  |
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| Dimensions: | 140 mm x 110 mm x 100 mm |
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1431 Time(s) |
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| Mineral: | Galena, Calcite |
| Locality: | | Krushev dol Mine, Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Dimensions: | 140 mm x 110 mm x 100 mm |
| Description: |
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| Viewed: |
1431 Time(s) |
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| Mineral: | Galena, Calcite |
| Locality: | | Krushev dol Mine, Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Dimensions: | 140 mm x 110 mm x 100 mm |
| Description: |
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| Viewed: |
1431 Time(s) |
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| Mineral: | Galena, Calcite |
| Locality: | | Krushev dol Mine, Madan mining area, Rhodope Mountains, Smolyan Oblast, Bulgaria | |
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| Dimensions: | 140 mm x 110 mm x 100 mm |
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1430 Time(s) |
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Philippe Durand
Joined: 10 May 2016
Posts: 557
Location: Normandie
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 13, 2022 14:59 Post subject: Bolivia - Silvia's Collection |
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An extremely rich specimen of the mineral Cylindrite. The longest tube measures about 18 mm.
| Mineral: | Cylindrite |
| Locality: | | Santa Cruz Mine, Poopó, Poopó Province, Oruro Department, Bolivia | |
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| Dimensions: | 90 mm x 70 mm x 60 mm |
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| Viewed: |
1234 Time(s) |
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| Mineral: | Cylindrite |
| Locality: | | Santa Cruz Mine, Poopó, Poopó Province, Oruro Department, Bolivia | |
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| Dimensions: | 90 mm x 70 mm x 60 mm |
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1237 Time(s) |
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| Mineral: | Cylindrite |
| Locality: | | Santa Cruz Mine, Poopó, Poopó Province, Oruro Department, Bolivia | |
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| Dimensions: | 90 mm x 70 mm x 60 mm |
| Description: |
| My children (I have four) said the crystals look like tornadoes. |
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1231 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 20, 2022 15:07 Post subject: Turt Mine - Silvia's Collection |
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Galena with Siderite
| Mineral: | Galena with Dolomite (variety Fe-bearing dolomite) |
| Locality: | | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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| Dimensions: | 110 mm x 80 mm x 60 mm |
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| Viewed: |
1096 Time(s) |
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| Mineral: | Galena with Dolomite (variety Fe-bearing dolomite) |
| Locality: | | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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| Dimensions: | 110 mm x 80 mm x 60 mm |
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| Viewed: |
1095 Time(s) |
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| Mineral: | Galena with Dolomite (variety Fe-bearing dolomite) |
| Locality: | | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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| Dimensions: | 110 mm x 80 mm x 60 mm |
| Description: |
| Detail of the crystals - view 1 |
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1099 Time(s) |
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| Mineral: | Galena with Dolomite (variety Fe-bearing dolomite) |
| Locality: | | Turt Mine, Turt, Negresti-Oas, Oas Mountains, Satu Mare, Romania | |
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| Dimensions: | 110 mm x 80 mm x 60 mm |
| Description: |
| Detail of the crystals - view 2 |
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| Viewed: |
1095 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 27, 2022 15:03 Post subject: Minerals of the Rubtsovk Mine - Silvia's Collection |
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A really lovely Azurite nodule from the Rubtsovsk mine.
| Mineral: | Azurite |
| Locality: | | Rubtsovskoe Mine, Rubtsovsky District, Altai Krai, Russia | |
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| Dimensions: | 80 mm x 50 mm x 50 mm |
| Description: |
| The pictures above were taken with our new Canon camera (EOS R6 MARK II) using an EF-EOS M Mount adapter and a Canon EFM 28mm f/3.5Macro IS STM lens on an Joby tripod. We used the photo bracketing function to take multiple shots (35) that were processed using Canon’s Digital Photo Professional V4.16.10.0 software. All photos were depth composited before editing. |
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940 Time(s) |
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| Mineral: | Azurite |
| Locality: | | Rubtsovskoe Mine, Rubtsovsky District, Altai Krai, Russia | |
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| Dimensions: | 80 mm x 50 mm x 50 mm |
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| Viewed: |
942 Time(s) |
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| Mineral: | - |
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| Viewed: |
939 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1016
Location: Cambridge
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| Posted: Jul 28, 2022 06:31 Post subject: Re: Minerals of the Rubtsovk Mine - Silvia's Collection |
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Does it do stacking? (with a compatible lens)
It says 'focus bracketing' - does that mean stacking?
| silvia wrote: | | A really lovely Azurite nodule from the Rubtsovsk mine. |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 28, 2022 15:09 Post subject: Re: Minerals of the Rubtsovk Mine - Silvia's Collection |
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| James Catmur wrote: | Does it do stacking? (with a compatible lens)
It says 'focus bracketing' - does that mean stacking?
| silvia wrote: | | A really lovely Azurite nodule from the Rubtsovsk mine. |
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Hello James:
I do believe it does photo stacking. From what my partner and I have seen on several you tube videos the ‘focus bracketing function’ allows you to shift the focus from the near field to the far field. You can set the number of photos the camera can take but the camera will determine the total number needed to achieve focus. By this I mean if you set 50 shots the camera may stop after 15.
The feature may seem ‘gimmicky’ to some folks but it has a niche application in product photography, especially photographing minerals. It is for this reason, among others too, that our children bought the camera for us.
If you would like to see the real experts using focus bracketing I can send the links.
Our children (I have four – a daughter and three sons) decided to surprise my partner (their father) and I with a wonderful gift – a new camera. So we now have a brand new Canon EOS R6 Mark II with a really professional tripod and five new Lens kits. Though I liked the old Nikon Coolpix A100, our children always called it a toy camera. We are really excited about the new camera.
| Mineral: | - |
| Description: |
| LCD set up for focus bracketing |
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| Viewed: |
845 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Aug 02, 2022 18:31 Post subject: Cuprite - Minerals of the Rubtsovsk Mine - Silvia's Collection |
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A cluster of well-formed Cuprite crystals from the Rubtsovsk mine showing sharp edges with a pleasing metallic luster - hint of blue. The largest crystal is 22 mm on edge. In bright light some of the smaller crystals display deep red tones. If the crystals transmit red light, the reflected light occurs at the blue end of the spectrum – hence hints of blue.
Prior to photographing my partner and I washed the specimen as Cuprite from this locality seems to develop a very thin layer of what might be hydroxy-copper oxide.
| Mineral: | Cuprite |
| Locality: | | Rubtsovskoe Mine, Rubtsovsky District, Altai Krai, Russia | |
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| Dimensions: | 60 mm x 50 mm x 30 mm |
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| Viewed: |
653 Time(s) |
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| Mineral: | Cuprite |
| Locality: | | Rubtsovskoe Mine, Rubtsovsky District, Altai Krai, Russia | |
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| Dimensions: | 60 mm x 50 mm x 30 mm |
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| Viewed: |
650 Time(s) |
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| Mineral: | Cuprite |
| Locality: | | Rubtsovskoe Mine, Rubtsovsky District, Altai Krai, Russia | |
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| Dimensions: | 60 mm x 50 mm x 30 mm |
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| Viewed: |
651 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Aug 09, 2022 16:13 Post subject: My Kidney - Silvia's Collection |
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I consider this specimen to be a shapely hematite "kidney ore" from Cumbria. I have not seen too many Kidney ore specimens from the Goose Green mine. Most come from the Florence mine, a locality that also produced excellent Baryte, Calcite, Dolomite, Fluorite and Quartz specimens. This Goose Green specimen has lustrous, rich deep-red ‘bubbly’ botryoids with a small quantity of specular hematite on the back of the specimen.
The photos were taken with the Canon EOS M6 Mark II. The lens used was the Canon EFM 28mm f/3.5 macro using the standard macro setting on the lens body (not super macro). The photos were processed using the Canon Digital Photo Professional V4 software. The depth compositing option was used. Some 20 photographs to be taken, focusing on various points of the specimen.
| Mineral: | Hematite |
| Locality: | | Goose Green Mine, Frizington, Arlecdon & Frizington, Copeland, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 8 cm x 6 cm x 5 cm |
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| Viewed: |
500 Time(s) |
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| Mineral: | Hematite |
| Locality: | | Goose Green Mine, Frizington, Arlecdon & Frizington, Copeland, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 8 cm x 6 cm x 5 cm |
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| Viewed: |
490 Time(s) |
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| Mineral: | Hematite |
| Locality: | | Goose Green Mine, Frizington, Arlecdon & Frizington, Copeland, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Dimensions: | 8 cm x 6 cm x 5 cm |
| Description: |
| Internal structure of the botryoids |
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| Viewed: |
493 Time(s) |
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| Mineral: | - |
| Description: |
| Lens used to take photos. |
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| Viewed: |
494 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Aug 09, 2022 16:51 Post subject: Re: Silvia's Collection |
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| Nice Hematite, Silvia, and excellent photo quality with the new camera.
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Aug 09, 2022 18:47 Post subject: Re: Silvia's Collection |
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| Michael Shaw wrote: | | Nice Hematite, Silvia, and excellent photo quality with the new camera. |
We are really happy with the camera. It enables us to take really high resolution photos that can easily be printed, without loss of clarity, on A4 size glossy paper. Some might even be worth printing in poster size. The Nikon Coolpix A100 took some very nice photos, but on enlargement they looked too grainy for A4 size photos.
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Aug 09, 2022 22:00 Post subject: KIDNEY LABEL - Silvia's Collection |
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label from famous British Collector and Dealer, Ralph Sutcliffe.
| Mineral: | - |
| Locality: | | Goose Green Mine, Frizington, Arlecdon & Frizington, Copeland, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom | |
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| Description: |
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| Viewed: |
446 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1016
Location: Cambridge
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1016
Location: Cambridge
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| Posted: Aug 10, 2022 04:24 Post subject: Re: Minerals of the Rubtsovk Mine - Silvia's Collection |
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| Found a video about this stacking/bracketing and it does seem useful. 'Focus bracketing' was a new term to me. I use Canon but would need a new body and lens to use the feature.
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Aug 10, 2022 17:43 Post subject: Re: Minerals of the Rubtsovk Mine - Silvia's Collection |
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| James Catmur wrote: | | Found a video about this stacking/bracketing and it does seem useful. 'Focus bracketing' was a new term to me. I use Canon but would need a new body and lens to use the feature |
Hello James:
Many thanks for the link.
At the moment we are still learning to use all the features of the camera. We have only experimented with the super macro function. For really close-up photos with magnification we use a digital microscope with a long focal length, and we stack the photos (anywhere from 20 to 100 shots per subject) with Helicon Focus. We consider it very important to have all aspects of the photo in focus – background, subject and foreground. It is for this reason that we avoid using a standard non-digital optical microscope – you can get some fantastic photos but the background is always out of focus.
Our children also included a focusing rail with the camera package gift, and I have included a photo. My partner is in the process of modifying and improving it, and he may also do a total rebuild or create a new component. He thinks the gear racks need replacing with better and smoother versions. He is also looking into a design using a micrometer to adjust the focus as this will enable much finer adjustment (0.1mm or less) when subjects are really close.
If it is fine we could include more photos of the development of our camera studio.
We are also very busy setting up a private Science Museum as we have thousands of pieces covering geology, mineralogy, mining and many other related fields. Our children say our home already looks like a museum so what is there to set up?
| Mineral: | - |
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327 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Aug 15, 2022 14:24 Post subject: Panasqueira minerals and panasqueira art - Silvia's Collection |
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We do not normally purchase thumbnail size mineral specimens, but my partner had ulterior motives – he intends to mount the piece in a 18K gold necklace for me. When complete I will upload a few photos of my new Panasqueira jewellery.
Despite its small size, it does contain some choice lustrous black crystals of Cassiterite to 15mm associated with minor Pyrite and minor Muscovite. Some of the Cassiterite crystals display internal red flashes. The specimen is in great condition – a fine thumbnail example from the famous Panasqueira mine – soon to be part of my jewellery collection.
| Mineral: | Cassiterite, Muscovite, Pyrite |
| Locality: | | Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
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| Dimensions: | 35 mm x 25 mm x 15 mm |
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| Viewed: |
76 Time(s) |
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| Mineral: | Cassiterite, Muscovite, Pyrite |
| Locality: | | Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
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| Dimensions: | 35 mm x 25 mm x 15 mm |
| Description: |
| Rear view - mounting to jewellery will be here. |
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| Viewed: |
76 Time(s) |
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| Mineral: | Cassiterite, Muscovite, Pyrite |
| Locality: | | Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
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| Description: |
I was so impressed with the water color paintings I have seen that I was considering trying to paint too. My daughter told me that it is very easy to do this sort of work with software – ‘in silico’ – so no paints or brushes are needed. She is buying me some specialized software so that I can produce ‘in-silico’ water colour (and oil paintings too) renderings of my minerals with minimal effort. The renderings created by the software that I have seen so far are outstanding – the ‘in silico’ productions are really nice.
My first ‘in silico’ oil painting on ‘in-silico’ canvas. Perhaps not as good as an artist could do but it only took me 10 minutes. With the new software my daughter is purchasing, the results should be much better. When printed on high quality paper and appropriately framed, the result will look nice.
We are also looking at creating photos, posters, t-shirts, and perhaps having them screen-printed on quality canvas.
I will not put copyright restrictions on my productions – they are free to use for all non-commercial purposes provided full credit is given. We do not need the money – we enjoy doing it so all may benefit. |
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76 Time(s) |
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