We use cookies to show content based on your preferences. If you continue to browse you accept their use and installation. More information. >

FMF - Friends of Minerals Forum, discussion and message board
The place to share your mineralogical experiences

FMF English Forum is moderated by John S. White and Peter Megaw
 

Spanish message board






Newest topics and users posts
25 Sep-08:54:11 Re: collection of machines, metals and minerals (Dontgogreen)
25 Sep-07:14:08 Re: collection of machines, metals and minerals (R Saunders)
25 Sep-05:04:01 Re: royal cornwall museum mineral gallery - your support is needed (Peter Lemkin)
25 Sep-03:04:45 Re: royal cornwall museum mineral gallery - your support is needed (Robert Seitz)
25 Sep-03:04:19 Re: collection of machines, metals and minerals (Pierre Joubert)
25 Sep-02:57:17 Re: royal cornwall museum mineral gallery - your support is needed (Peter Lemkin)
24 Sep-19:25:59 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-19:22:39 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-19:20:29 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-19:19:03 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-18:04:22 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-18:03:26 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:50:26 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:38:29 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:37:29 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:32:12 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:27:03 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:25:51 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:24:47 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:23:37 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-17:13:40 Re: collection of machines, metals and minerals (Recovering - Academic)
24 Sep-16:18:13 Re: collection of machines, metals and minerals (Robert Seitz)
24 Sep-16:09:05 Collection of machines, metals and minerals (Recovering - Academic)
24 Sep-14:31:22 Re: royal cornwall museum mineral gallery - your support is needed (Robert Seitz)
24 Sep-14:27:31 Re: royal cornwall museum mineral gallery - your support is needed (Peter Lemkin)

For lists of newest topics and postings click here


RSS RSS

View unanswered posts

Why and how to register

Index Index
 FAQFAQ RegisterRegister  Log inLog in
 {Forgotten your password?}Forgotten your password?  

Like
45898


The time now is Sep 25, 2018 10:14

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
What is this ?
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
Like


View previous topic :: View next topic  
Author Message

Paulmccabe1188




Joined: 17 Aug 2018
Posts: 3
Location: Edinburgh

View user's profile

Send private message

PostPosted: Aug 17, 2018 19:29    Post subject: What is this ?  

Hello I'm a keen metal detectorist and I found this while I was out in the field, this was found in Edinburgh I can't give much details about the red and white mineral. Thank you for any details as I'm very interested in minerals and would love to learn about them .


IMG_20180817_234447626_BURST001.jpg
 Description:
Edinburgh
35 mm
 Viewed:  574 Time(s)

IMG_20180817_234447626_BURST001.jpg



IMG_20180817_234502938_BURST001.jpg
 Description:
Edinburgh
35 mm
 Viewed:  575 Time(s)

IMG_20180817_234502938_BURST001.jpg



IMG_20180817_234517027.jpg
 Description:
Edinburgh
35 mm
 Viewed:  573 Time(s)

IMG_20180817_234517027.jpg


Back to top
Reply to topic Reply with quote
Like
   

crosstimber
Site Admin



Joined: 30 Apr 2008
Posts: 1286
Location: Oklahoma


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Aug 17, 2018 19:54    Post subject: Re: What is this ?  

It is very difficult to identify minerals from photos alone, especially when the photo is not in focus. Before submitting photos for identification please read carefully https://www.mineral-forum.com/message-board/viewtopic.php?p=19487#19487
A few basic tests will help narrow down the possibilities.
Back to top
Reply to topic Reply with quote
Like
   

SteveB




Joined: 12 Oct 2015
Posts: 51
Location: Canberra

View user's profile

Send private message

PostPosted: Aug 17, 2018 20:03    Post subject: Re: What is this ?  

Its an agate, but as instructed follow the identification guide always. Agate is one of the few minerals in existence that can be visually identified with confidence. So youre lucky this once.
Back to top
Reply to topic Reply with quote
Like
   

Bob Harman




Joined: 06 Nov 2015
Posts: 398
Location: Indiana


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Aug 17, 2018 21:18    Post subject: Re: What is this ?  

Quartz is the mineral. An agate is microcrystalline quartz with a recognizable banding pattern which this example does show, thus qualifying it as an agate. As others have noted tho, please follow the instruction guide for posting examples for ID.
BOB
Back to top
Reply to topic Reply with quote
Like
   

Justin Hickok




Joined: 28 Sep 2017
Posts: 66
Location: Strasburg

View user's profile

Send private message

PostPosted: Aug 17, 2018 22:40    Post subject: Re: What is this ?  

So there you go. Its agate. But I'm more interested in the other specimen in the image.
Pyrite cube?
Back to top
Reply to topic Reply with quote
Like
   

Paulmccabe1188




Joined: 17 Aug 2018
Posts: 3
Location: Edinburgh

View user's profile

Send private message

PostPosted: Aug 18, 2018 05:16    Post subject: Re: What is this ?  

Thanks guys that's brilliant this forum is great , learning alot . Ok so the cube thing I actually found with the metal detector it was giving a high signal , bring it home because it looked strange I took a little slice of the corner here's a few pics.looks like silvery flecks when I cut through the corner. It's very dense and heavy and also my magnet easy sticks to it


IMG_20180818_111212206.jpg
 Description:
Edinburgh
50mm
 Viewed:  478 Time(s)

IMG_20180818_111212206.jpg



IMG_20180818_111252982.jpg
 Description:
Edinburgh
50mm
 Viewed:  474 Time(s)

IMG_20180818_111252982.jpg



IMG_20180818_111236226.jpg
 Description:
Edinburgh
50mm
 Viewed:  478 Time(s)

IMG_20180818_111236226.jpg



IMG_20180818_111212206.jpg
 Description:
Edinburgh
50mm
 Viewed:  475 Time(s)

IMG_20180818_111212206.jpg


Back to top
Reply to topic Reply with quote
Like
   

Susan Robinson




Joined: 05 Aug 2010
Posts: 141
Location: Hancock, MI

View user's profile

Send private message

PostPosted: Aug 18, 2018 07:12    Post subject: Re: What is this ?  

The small, rounded pebble is actually an agate. The second specimen looks like it could be limonite pseudomorph after pyrite (?)
_________________
Susan Robinson
Back to top
Reply to topic Reply with quote
Like
   

Bob Morgan




Joined: 18 Jan 2018
Posts: 23
Location: Savannah, Georgia

View user's profile

Send private message

PostPosted: Aug 18, 2018 09:23    Post subject: Re: What is this ?  

I don't know of pyrite or limonite being magnetic. The only suggestion I have is an alteration of pyrite to hematite variety martite which could be magnetic. That was suggested for some small cubes in South Carolina, although martite is listed by mindat as an alteration of magnetite to hematite and octahedral in form.
Back to top
Reply to topic Reply with quote
Like
   

vic rzonca




Joined: 18 Nov 2008
Posts: 726
Location: MA


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Aug 18, 2018 10:09    Post subject: Re: What is this ?  

Just an observation. Because of the magnetism and shape it makes me think of an iron billet used in blacksmithing. The broken corner shows a steel grey and the other end looks as if it broke off a longer billet, long ago. Man made, maybe. Do we have a location?
Back to top
Reply to topic Reply with quote
Like
   

Kevin Schofield




Joined: 05 Jan 2018
Posts: 57
Location: Beacon NY

View user's profile

Send private message

PostPosted: Aug 18, 2018 12:09    Post subject: Re: What is this ?  

As you are in Edinburgh, the source of the agate was probably the Fife coast, which has been a noted source of agates for well over 100 years...even more likely if you were metal-detecting along the shoreline.

I'm with Vic on the cube. Lots of old industry around Edinburgh, so I suspect a piece of old iron that has finally found an appreciative home!

_________________
Veni, Vidi, Emi
Back to top
Reply to topic Reply with quote
Like
   

Justin Hickok




Joined: 28 Sep 2017
Posts: 66
Location: Strasburg

View user's profile

Send private message

PostPosted: Aug 18, 2018 15:59    Post subject: Re: What is this ?  

Agree with man made iron scrap of some sort, but I found a very similar piece a few weeks ago near Lake George, Co that turned out to be magnetite.
Its magnetic and detectable.
Mine has a series to stacked triangles on one end, roughly one inch in width.
Could be tetrahedrite but I'm thinking magnetite. Or pyrrhotite.
Back to top
Reply to topic Reply with quote
Like
   

Paulmccabe1188




Joined: 17 Aug 2018
Posts: 3
Location: Edinburgh

View user's profile

Send private message

PostPosted: Aug 18, 2018 16:11    Post subject: Re: What is this ?  

Thanks very much for the responding to my posts very informative people thanks
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> FOR BEGINNERS: What is it? Where is it from?   All times are GMT - 5 Hours
Page 1 of 1
    

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


All pictures, text, design © Forum FMF 2006-2018


Powered by FMF