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


Spanish message board






Newest topics and users posts
01 May-14:15:03 Re: collection of volkmar stingl (Volkmar Stingl)
01 May-13:53:34 Re: collection of firmo espinar (Firmo Espinar)
01 May-09:04:18 Re: collection of michael shaw (Michael Shaw)
29 Apr-22:26:22 Re: collection of volkmar stingl (Volkmar Stingl)
29 Apr-17:56:49 The mizunaka collection - agate (Am Mizunaka)
29 Apr-16:45:46 Rutile from boiling springs, usa / mvm (minerals - virtual museum) collection (Jordi Fabre)
29 Apr-11:50:01 Re: libyan desert glass structure (Craig Hagstrom)
29 Apr-08:23:04 Re: collection of michael shaw (Michael Shaw)
28 Apr-13:43:16 Re: the mim museum in beirut, lebanon (Philippe Durand)
28 Apr-13:41:44 Re: munich show (mineralientage) 2023 (Philippe Durand)
27 Apr-15:08:36 Re: collection of joseph d'oliveira (Joseph Doliveira)
27 Apr-09:22:16 Re: the mim museum in beirut, lebanon (Mim Museum)
26 Apr-22:30:18 Re: collection of volkmar stingl (Volkmar Stingl)
26 Apr-17:32:07 Topaz on albite from pakistan / mvm (minerals - virtual museum) collection (Jordi Fabre)
26 Apr-17:12:33 Re: collection of joseph d'oliveira (Joseph Doliveira)
26 Apr-15:06:49 The mizunaka collection - adularia (Am Mizunaka)
26 Apr-09:23:05 Re: collection of michael shaw (Michael Shaw)
25 Apr-16:30:00 Smithsonite (cu-bearing) from tsumeb / mvm (minerals - virtual museum) collection (Jordi Fabre)
25 Apr-10:42:35 Re: collection of joseph d'oliveira (Joseph Doliveira)
24 Apr-15:16:46 Re: if anybody knows this gemstone, please tell me (Riccardo Modanesi)
24 Apr-12:18:57 Re: collection of enrique llorens (Enrique Llorens)
24 Apr-10:59:20 Re: if anybody knows this gemstone, please tell me (Gemstonebank)
23 Apr-22:50:59 Re: collection of volkmar stingl (Volkmar Stingl)
23 Apr-16:34:26 Pyromorphite from el horcajo mines, spain / mvm (minerals - virtual museum) collection (Jordi Fabre)
23 Apr-14:49:53 The mizunaka collection - quartz (Am Mizunaka)

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
120956


The time now is May 01, 2025 23:23

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
Search found 11 matches
Index
Author Message
  Topic: unknown - from the same bucket :)
Shanester

Replies: 3
Views: 7458

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 30, 2022 06:14   Subject: Re: unknown - from the same bucket :)
Yup..
SG is 2.52 so yeah, better luck next time.
FYI the light source was full visible white light (flashlight).
Thank y’all!
  Topic: unknown - from the same bucket :)
Shanester

Replies: 3
Views: 7458

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 21:22   Subject: unknown - from the same bucket :)
This is my favorite stone from the same bucket as my first post!

Unknown
May 2022
Arkansas
.54 grams (2.7 ct?)
Haven’t done SG yet..
I got hopes for this (but please redirect my presumption ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 20:52   Subject: Re: Any Ideas?
Adding some closeups. Still seeking a jeweler or gemologist for a final ID. Thank y’all, it’s been much fun!
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 20:14   Subject: Re: Any Ideas?
Looks like a water worn piece of colorless corundum found in a placer deposit. Measured SG fits corundum and trigons on basal pinacoid faces also fits.

Is not so rare find relocated specimens far a ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 14:07   Subject: Re: Any Ideas?
I'd hazard corundum - but nowhere do I see you state the size. The photos only imply what the size may be. For a diamond in that location it is too big and I don't think they have ones like that but ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 13:57   Subject: Re: Any Ideas?
Don't waste your money on a thermal conductivity "diamond tester". They are designed for use on the flat polished facets of gemstones and give very unreliable results on rough stones and cry ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 11:01   Subject: Re: Any Ideas?
People 'salt' with non-local stones. That may well be what you have, so who knows where it is from. Hardness-wise and crystal form-wise it suggests Corundum but it could be a diamond given the locat ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 29, 2022 05:39   Subject: Re: Any Ideas?
It looks like it is harder than glass but not as hard as diamond. That rules out Calcite so the acid test should do nothing.

With the crystal growth patterns, Corundum is a possibility. Where did ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 28, 2022 23:26   Subject: Re: Any Ideas?
Couple of scratch tests done. I tried it with a glass bead reamer (jeweler tool) which is diamond coated (claimed) and I can as expected scratch it with that, however it’s almost as if you can see whe ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 28, 2022 12:04   Subject: Re: Any Ideas? Many thanks..
Thank you all so very much for your time, and interest and mostly advice!

It is a privilege to be able to reach out to folks who have a passion, and bear knowledge without rights. That you share, ...
  Topic: Any Ideas?
Shanester

Replies: 22
Views: 22724

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 28, 2022 02:57   Subject: Any Ideas?
May 2022
Arkansas
Specific Gravity 3.88-3.94
6.9 grams
Sapphire?
Unusual?
 
Page 1 of 1
All times are GMT - 5 Hours
Jump to:  


All pictures, text, design © Forum FMF 2006-2025


Powered by FMF