July 21-28—ARDEN, NORTH CAROLINA: 16th Annual Western North Carolina Rockhound Roundup; Mountain Area Gem and Mineral Association; Camp Stephens, daily 8:30-5
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Mon Jul 15, 2019 4:40 pm

All times are UTC - 4 hours




Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: Inclusions in orange sapphire
PostPosted: Sun May 03, 2015 1:26 pm 
Offline
Valued Contributor
User avatar

Joined: Mon Apr 06, 2015 10:37 am
Posts: 104
Location: Latina- Rome
Hi guys,
I bought these orange sapphires, mounted in a nice pendant. I examined the stones under magnification. I suppose the stones have been heated, I don't know whether or not they have been Be-diffused.
Here the stones in the pendant (back light):
Image
Now an inclusion in the small stone, I guess a 2-phase inclusion next a fingerprint veil (x100):
Image
the same inclusion, in detail
Image
The greater stone has these inclusions
Image
A detail of the discoid inclusions
Image
I don't understand clearly these last images... might they be a fingerprint veil sourrunded by discoid fractures with tension halo?
What do you think?
Thank you so much!!! :) :) :)


Top
 Profile  
Reply with quote  
 Post subject: Re: Inclusions in orange sapphire
PostPosted: Sun May 03, 2015 1:39 pm 
Offline
Valued Contributor

Joined: Wed Feb 11, 2015 5:22 pm
Posts: 170
Location: Lachine, Quebec
Quote:
a 2-phase inclusion next a fingerprint veil


Is that crystal inclusion with a liquid? On picture looks like it has a natural facet, but I am not sure if i see correctly. Why do you make your pictures so small (not magnification, but size of image)?? :( :)

_________________
All stones are alike, all stones are precious; but man sees only a few of them...
Maurice Maeterlinck


Top
 Profile  
Reply with quote  
 Post subject: Re: Inclusions in orange sapphire
PostPosted: Mon May 04, 2015 12:20 am 
Offline
Valued Contributor
User avatar

Joined: Mon Apr 06, 2015 10:37 am
Posts: 104
Location: Latina- Rome
Thank you for your kind reply, GSK!
I try again
what I guess is 2-phase inclusion
Image
the fingerprint surrounded by the discoid fractures (?):
Image
Image

Grazie!!!!
:D


Top
 Profile  
Reply with quote  
 Post subject: Re: Inclusions in orange sapphire
PostPosted: Wed May 06, 2015 7:21 am 
Offline
Valued Contributor

Joined: Wed Feb 11, 2015 5:22 pm
Posts: 170
Location: Lachine, Quebec
Interesting, but do not see clear.. That 2pfase inclusion looks like... I don't know what is it.. negative? Crystal with something else inside? Viewing under your microscope you can see more clearly then picture shows.. Try to describe.

Do you use digital "smalloscope" or standard optical microscope? Picture looks like taken with digital device..

_________________
All stones are alike, all stones are precious; but man sees only a few of them...
Maurice Maeterlinck


Top
 Profile  
Reply with quote  
 Post subject: Re: Inclusions in orange sapphire
PostPosted: Wed May 06, 2015 8:18 am 
Offline
Valued Contributor
User avatar

Joined: Mon Apr 06, 2015 10:37 am
Posts: 104
Location: Latina- Rome
You saw good, GSK.
The 2-phase inclusion seems to me a negative crytal with a gas bubble inside...
What do you think about the features in other pics? Might they be discoid fractures?
Thank you for your kind replies :D

I use a standar optical microscope, that I bought when I studied biology (I am a doctor).
I have just bought a stereomicroscope, more suitable for gemology.
Thanks!
Ciao
Luca


Top
 Profile  
Reply with quote  
 Post subject: Re: Inclusions in orange sapphire
PostPosted: Wed May 06, 2015 8:30 am 
Offline
Valued Contributor

Joined: Wed Feb 11, 2015 5:22 pm
Posts: 170
Location: Lachine, Quebec
Ciao, doc! Who else will share with us our hobby some time turning to be a main thing in life, gemology..

That was also my guess - microscope with standard bio-objectives. Does give some "unusual" view... :) Good you will start to use gemological device, then also different options as dark field, diffusing and polarizing of light will help you very much!

I do not see discoid fracture at the moment on current picture. As for negative - then it is multiphase inclusion, if it has liquid and such "fresh" gas-bubble, it tells that stone has not be subject of heating.. But to make sure this my guess is correct you have to observe this "negative guy" under different conditions, to make sure that we recognized its nature correctly.

_________________
All stones are alike, all stones are precious; but man sees only a few of them...
Maurice Maeterlinck


Top
 Profile  
Reply with quote  
 Post subject: Re: Inclusions in orange sapphire
PostPosted: Wed May 06, 2015 8:49 am 
Offline
Valued Contributor
User avatar

Joined: Mon Apr 06, 2015 10:37 am
Posts: 104
Location: Latina- Rome
Thank for your valuable contribution, GSK. =D>
I am looking forward to start using my new gemological devices!
:D


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 4 hours


Who is online

Users browsing this forum: No registered users and 1 guest


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