January 24 Through February 4—TUCSON, ARIZONA: Annual show
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Thu Mar 28, 2024 11:12 am

All times are UTC - 4 hours




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: Colored Gemstones Identification
PostPosted: Thu Aug 29, 2013 10:41 pm 
Offline
New to the Forum or The Quiet Type

Joined: Thu Aug 29, 2013 1:10 pm
Posts: 6
I'm new to the forum and a begginer in gemology/mineralogy. I'm starting a collection of stones - almost all of them colored gemstones - and I'm having some trouble on their ID.
As I have no equipment, and some instruments would be useless on a tumbled stone (like a refractometer, I think), could someone indicate a method or reading material for me to improve on the matter?
I don't need to distinguish real stones from fakes (most of the time), nor assess value.

Example: I have some green stones that are very similar. I just know they're not amazonite or agate. I've been searching for some indications of possible confusions and overall characteristics of minerals that could lead me to answers.

Thank you very much - and sorry if I have asked a question already answered on some other post (I haven't found any)...


Top
 Profile  
Reply with quote  
 Post subject: Re: Colored Gemstones Identification
PostPosted: Fri Aug 30, 2013 1:11 am 
Offline
Gold Member

Joined: Mon May 14, 2007 11:00 am
Posts: 1133
Location: Monterey, CA
S.G.


Top
 Profile  
Reply with quote  
 Post subject: Re: Colored Gemstones Identification
PostPosted: Fri Aug 30, 2013 2:34 pm 
Offline
New to the Forum or The Quiet Type

Joined: Thu Aug 29, 2013 1:10 pm
Posts: 6
Thanks. The S.G. actually solve many of the most common confusions.

What about the stones that belong in the same group, e.g., the different types of chalcedony like jasper, agate and chrysoprase, or some kinds of garnet? In these cases the S.G. can be insufficient to make a distincion. Any tips?

Thanks again.


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 4 hours


Who is online

Users browsing this forum: No registered users and 16 guests


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 post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Gemology Style ported to phpBB3 by Christian Bullock