Lovinggems
Ideal_Rock
- Joined
- Mar 28, 2009
- Messages
- 3,622
Date: 6/3/2009 2:51:34 PM
Author: tourmaline_lover
I don''t think a high quality color umbalite should do this. For example, I don''t believe Arjunajane''s James Meyer bezeled umbalite does this.
Date: 6/4/2009 4:01:22 AM
Author: Swala
Hi Lovingems,
If it''s really an Umbalite - which it seems to be - then it''s totally normal. Umbalite is a commercial name for Pyro-spessartite garnets from Umba Valley (north east of Tanzania). Most Umbalites have color shift or color change characteristics (Color Change Garnets for instance are Pyro-spessartites as well).
You may not like the color under fluorescent lighting conditions, but that''s another issue. Personnally, I think the color shift or color change is special. I don''t know who you bought it from and at what price but if you think it''s a good deal, I would encourage you to keep it. These gems are quite rare and should be ''cherished''
I hope this helps.
Do other red items remain red under your bulbs? I''ve written before about my experience with certain compact fluorescent bulbs which turned any red into brown, be it TIME magazine covers, clothing, skin, or rubies. Not the gemstone''s fault in this case. I''ll bet even the best pink tourmalines would turn brown. If the red color spectrum is completely gone, then nothing appear red.Date: 6/4/2009 8:39:15 AM
Author: Lovinggems
Date: 6/4/2009 4:01:22 AM
Author: Swala
Hi Lovingems,
If it''s really an Umbalite - which it seems to be - then it''s totally normal. Umbalite is a commercial name for Pyro-spessartite garnets from Umba Valley (north east of Tanzania). Most Umbalites have color shift or color change characteristics (Color Change Garnets for instance are Pyro-spessartites as well).
You may not like the color under fluorescent lighting conditions, but that''s another issue. Personnally, I think the color shift or color change is special. I don''t know who you bought it from and at what price but if you think it''s a good deal, I would encourage you to keep it. These gems are quite rare and should be ''cherished''
I hope this helps.Thank you Swala , I was searching for umbalites information last night but couldn''t find much, I read the piece on your website and I''m glad I learned a bit more about these interesting garnets. It is really pretty but I think the poor umbalite garnet was overshadowed by the tourmaline.
Please do post more often, I and I''m sure other Pricescopers, are always excited when someone from the gem trade takes the time to share their knowledge.
I don''t know yet, I''ll wait until the weekend, take some photos and have a better look.Date: 6/4/2009 9:26:45 AM
Author: Stone Hunter
So what are you going to do with the umbalite? Is is going back?
FG - I tested my ruby and it looked crappy under the energy light bulb, not brown though, but the life and colour has been sucked out of the stone. I think the lightbulb''s the main culprit.Date: 6/4/2009 9:37:38 AM
Author: Fly Girl
Do other red items remain red under your bulbs? I''ve written before about my experience with certain compact fluorescent bulbs which turned any red into brown, be it TIME magazine covers, clothing, skin, or rubies. Not the gemstone''s fault in this case. I''ll bet even the best pink tourmalines would turn brown. If the red color spectrum is completely gone, then nothing appear red.Date: 6/4/2009 8:39:15 AM
Author: Lovinggems
Date: 6/4/2009 4:01:22 AM
Author: Swala
Hi Lovingems,
If it''s really an Umbalite - which it seems to be - then it''s totally normal. Umbalite is a commercial name for Pyro-spessartite garnets from Umba Valley (north east of Tanzania). Most Umbalites have color shift or color change characteristics (Color Change Garnets for instance are Pyro-spessartites as well).
You may not like the color under fluorescent lighting conditions, but that''s another issue. Personnally, I think the color shift or color change is special. I don''t know who you bought it from and at what price but if you think it''s a good deal, I would encourage you to keep it. These gems are quite rare and should be ''cherished''
I hope this helps.Thank you Swala , I was searching for umbalites information last night but couldn''t find much, I read the piece on your website and I''m glad I learned a bit more about these interesting garnets. It is really pretty but I think the poor umbalite garnet was overshadowed by the tourmaline.
Please do post more often, I and I''m sure other Pricescopers, are always excited when someone from the gem trade takes the time to share their knowledge.
That said my umbalites turn grapey purple/pink in color under some office fluorescents, and are pink and red otherwise. I love them.
I think I will keep the garnet. Here''s my thread with real life photo of the stone.Date: 6/4/2009 9:39:30 AM
Author: Lovinggems
I don''t know yet, I''ll wait until the weekend, take some photos and have a better look.Date: 6/4/2009 9:26:45 AM
Author: Stone Hunter
So what are you going to do with the umbalite? Is is going back?
Hi Eric,Date: 6/4/2009 4:01:22 AM
Author: Swala
Hi Lovingems,
If it''s really an Umbalite - which it seems to be - then it''s totally normal. Umbalite is a commercial name for Pyro-spessartite garnets from Umba Valley (north east of Tanzania). Most Umbalites have color shift or color change characteristics (Color Change Garnets for instance are Pyro-spessartites as well).
You may not like the color under fluorescent lighting conditions, but that''s another issue. Personnally, I think the color shift or color change is special. I don''t know who you bought it from and at what price but if you think it''s a good deal, I would encourage you to keep it. These gems are quite rare and should be ''cherished''
I hope this helps.
I think most gems are color shifters when it comes to the way they present themselves in different light sources. The kind of color shifting that doesn''t appeal to me, although it might to others, is when a stone goes to a color that is either more brown or grey My rubellite can go from a hot pink to more of a deep red, but it still shifts only to desirable colors, like your umbalite AJJ.Date: 6/9/2009 1:06:00 PM
Author: arjunajane
weird - my umbalite goes from red, to pink, to purple - to magenta - to sometimes all of these at once!
But never ''muddy'' or gray in the slightest, regardless of light source.
Personally I like this colour shift, like Eric said I think its special (or cool) - I get a different colour gem depending what lighting I''m in.
I dunno, maybe I got lucky? I didn''t know ''muddiness'' was typical of these at all.