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
28 Feb-16:21:57 Re: collecting and imagining. (Sante Celiberti)
28 Feb-16:18:36 Re: appropriate photo editing software (Marvinlewinsky)
28 Feb-15:20:18 Re: appropriate photo editing software (Colin Robinson)
28 Feb-15:13:19 Re: isotopic composition of german silvers (Brent Lockhart)
28 Feb-14:33:41 Re: isotopic composition of german silvers (Jordi Fabre)
28 Feb-09:53:43 Re: appropriate photo editing software (Vinoterapia)
28 Feb-09:41:55 Re: appropriate photo editing software (Fuss)
28 Feb-07:59:13 Re: appropriate photo editing software (Niels Brouwer)
28 Feb-07:09:32 Re: collection of firmo espinar (Firmo Espinar)
28 Feb-05:35:26 Re: appropriate photo editing software (Basti)
27 Feb-23:55:44 Isotopic composition of german silvers (Brent Lockhart)
27 Feb-18:29:55 Re: appropriate photo editing software (Rweaver)
27 Feb-17:15:04 Re: taking great photographs (Jordi Fabre)
27 Feb-16:54:53 Re: appropriate photo editing software (Kevin Conroy)
27 Feb-16:11:21 Re: collection of sante celiberti - a mineralogical trip through italy (Sante Celiberti)
27 Feb-15:16:11 Appropriate photo editing software (Marvinlewinsky)
27 Feb-15:02:50 Re: taking great photographs (Marvinlewinsky)
27 Feb-13:58:29 The mizunaka collection - quartz with plancheite (Am Mizunaka)
27 Feb-12:09:55 Re: collection of annemieke en rob schnerr (Rob Schnerr)
27 Feb-10:54:23 Re: azurite to malachite pseudomorph research (Bob Kerr)
27 Feb-10:09:53 Re: azurite to malachite pseudomorph research (Raystraw)
27 Feb-10:05:37 Re: azurite to malachite pseudomorph research (Raystraw)
27 Feb-06:36:27 Re: azurite to malachite pseudomorph research (Roger Warin)
27 Feb-04:59:23 Re: azurite to malachite pseudomorph research (Peter Lemkin)
27 Feb-04:36:35 Re: azurite to malachite pseudomorph research (Basti)

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
63508


The time now is Feb 28, 2020 19:41

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
Could this be Opal?
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
Like
1


View previous topic :: View next topic  
Author Message

Andreas




Joined: 14 Jun 2019
Posts: 6

View user's profile

Send private message

PostPosted: Aug 13, 2019 15:06    Post subject: Could this be Opal?  

Hello mineral lovers, i hope you can help me with identifying this specimen!

I found this stone/mineral on the beach. At first glance it appeared to be a regular rock, but I found that it had some bluish shine, which became more clear when I polished it a little.
The blue colors change with the angle I look at them. Could this be an opal? or is it just something else?

It is not too hard to polish just using sandpaper.

I hope you can help me, and thank you if you try.

Best,
Andreas



WIN_20190813_21_41_04_Pro.jpg
 Locality:
Denmark
 Dimensions: 1cm thick 2cm broad 3 long
 Description:
 Viewed:  1083 Time(s)

WIN_20190813_21_41_04_Pro.jpg



WIN_20190813_21_35_22_Pro.jpg
 Description:
 Viewed:  1086 Time(s)

WIN_20190813_21_35_22_Pro.jpg



WIN_20190813_21_34_43_Pro.jpg
 Description:
 Viewed:  1086 Time(s)

WIN_20190813_21_34_43_Pro.jpg



WIN_20190813_21_35_12_Pro.jpg
 Description:
 Viewed:  1089 Time(s)

WIN_20190813_21_35_12_Pro.jpg



WIN_20190813_21_34_31_Pro.jpg
 Description:
 Viewed:  1085 Time(s)

WIN_20190813_21_34_31_Pro.jpg


Back to top
Reply to topic Reply with quote
Like
   

kushmeja




Joined: 28 Jul 2014
Posts: 231
Location: New Jersey


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Aug 13, 2019 15:10    Post subject: Re: Could this be Opal?  

Doesn't look at all like opal really. It's probably feldspar with blue shimmer (aka Moonstone).
Back to top
Reply to topic Reply with quote
Like
1
   

Andreas




Joined: 14 Jun 2019
Posts: 6

View user's profile

Send private message

PostPosted: Aug 13, 2019 15:18    Post subject: Re: Could this be Opal?  

kushmeja wrote:
Doesn't look at all like opal really. It's probably feldspar with blue shimmer (aka Moonstone).

Thank you kushmeja! I did not know that one, it would make a lot more sense :) I have just never seen these! Hopefully I will learn as long that I live !
Back to top
Reply to topic Reply with quote
Like
   

SteveB




Joined: 12 Oct 2015
Posts: 110
Location: Canberra

View user's profile

Send private message

PostPosted: Aug 13, 2019 22:38    Post subject: Re: Could this be Opal?  

Larvikite
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 2006-2020


Powered by FMF