August 24:—SAN ANTONIO, TEXAS: Retail show; Southwest Gem and Mineral Society of San Antonio; Sat. 10-5
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Fri Aug 23, 2019 2:45 am

All times are UTC - 4 hours




Post new topic Reply to topic  [ 12 posts ] 
Author Message
 Post subject: Watizzit 2
PostPosted: Mon Jul 21, 2008 7:16 pm 
Offline
Gemology Online Übergod
User avatar

Joined: Tue Aug 01, 2006 3:24 am
Posts: 4997
Location: McDonough GA
I'm not a Diamond but I sparkle like one
when you look at my back I'm double the fun.
Rarely ever do I come this blue...
and with a hint of violet? Wow! But it's true!
What am i?

Image

(i suspect this is way too easy but oh well! :) )

J-

_________________
http://www.selectgem.com


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 8:11 pm 
Offline
Gold Member

Joined: Thu Apr 17, 2008 1:47 am
Posts: 1322
Location: Pacific Northwest
OK, sit tight
let me see
could it be
Iolite?

_________________
I just dreamed that I was a butterfly.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 9:17 pm 
Offline
Gold Member
User avatar

Joined: Fri Oct 19, 2007 5:04 pm
Posts: 1607
Location: Walnut Creek, CA
A cool zircon? :wink:


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 9:48 pm 
Offline
Platinum Member

Joined: Tue Nov 29, 2005 2:02 pm
Posts: 2647
Benetoite, aka "blue diamond" misnomer.

High dispersion and high birefringence are benchmarks for this blue stone.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 10:09 pm 
Offline
Gemology Online Übergod
User avatar

Joined: Tue Aug 01, 2006 3:24 am
Posts: 4997
Location: McDonough GA
All good guesses but it was maialetto who guessed right. I was right...way too easy. This stone is a very very nice very BLUE Zircon weighing a bit over 2 carats.

JB got the dispersion part of the riddle right but the "Double the fun" was a reference to the back facet doubling.

Sigh...i need something really obscure for the next watizzit.

J-

_________________
http://www.selectgem.com


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 10:12 pm 
Offline
Platinum Member
User avatar

Joined: Wed Apr 26, 2006 12:44 am
Posts: 2051
Location: San Francisco
yes, but where do we BUY a natural like that... :) I got plenty of synth that color in the box..

_________________
Custom Gemstone Cutting and various other activities!


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 10:45 pm 
Offline
Gemology Online Übergod
User avatar

Joined: Tue Aug 01, 2006 3:24 am
Posts: 4997
Location: McDonough GA
jleb wrote:
yes, but where do we BUY a natural like that... :) I got plenty of synth that color in the box..


;) Guess.

_________________
http://www.selectgem.com


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Mon Jul 21, 2008 10:54 pm 
Offline
Platinum Member

Joined: Tue Nov 29, 2005 2:02 pm
Posts: 2647
That was a good one Jason. I'm sure you can see how I related birefringence to "back facet doubling" in this case. Would be hard to differentiate zircon from benetoite based on general dispersion and birefringent descriptions along with a picture that would be excellent examples of either one. (except for the dispersion)

I was looking for the less obvious answer. The duck that walks like a duck, but might be a .....


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Tue Jul 22, 2008 12:44 pm 
Offline
Gold Member
User avatar

Joined: Fri Oct 19, 2007 5:04 pm
Posts: 1607
Location: Walnut Creek, CA
:smt112 back facet doubling is really strong, you can see it from the picture.

It's a very nice blue zircon; I'd have preferred a 2ct. benitoite, btw :) You too, I guess :wink:


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Tue Jul 22, 2008 12:50 pm 
Offline
Platinum Member

Joined: Wed Nov 23, 2005 12:47 pm
Posts: 2511
Location: Eastern Europe
Goodness! Could that thing be coated, by any chance? That's some color 8)


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Tue Jul 22, 2008 2:19 pm 
Offline
Valued Contributor
User avatar

Joined: Tue Mar 27, 2007 10:39 am
Posts: 246
Location: Cincinnati
Jason,

Did the seller have an origin associated with this stone? Just wondering if this material would be from Cambodia as many of the other shades of blue are.

-Mike


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Tue Jul 22, 2008 2:25 pm 
Offline
Gemology Online Übergod
User avatar

Joined: Tue Aug 01, 2006 3:24 am
Posts: 4997
Location: McDonough GA
Yes, this one is Cambodian as well.

_________________
http://www.selectgem.com


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 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