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Old 08-23-2020, 11:14 AM
Art Freas Art Freas is offline
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Metal in Aventurine

Quick question. In aventurine are these the right metals for the sparkles

Green-Chromium, Blue-Copper, Gold-Copper, Topaz-?, black-?

Has anyone figured a red aventurine?
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Old 08-24-2020, 07:34 AM
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Pete VanderLaan Pete VanderLaan is offline
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If there are more than two true aventurines, I'm not aware of it.

Copper and chrome. Chrome Green and Copper brownish gold. Otherwise, there's mica introduced but they aren't the real deal. Chrome is far easier to make but a good aventurine will be achieved cooling the pot glass very slowly to room temp and then breaking up the chunks.
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Old 08-24-2020, 08:01 AM
Eben Horton Eben Horton is offline
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I have only seen gold, dark green, light green and blue
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Old 08-24-2020, 01:36 PM
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Quote:
Originally Posted by Eben Horton View Post
I have only seen gold, dark green, light green and blue
*****
Well, tradition says green and gold ( copper) but I can't see why cobalt, which is purely a saturation colorant couldn't color the chrome one some. They continue to be issues with expansion though.
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Old 08-24-2020, 01:40 PM
Art Freas Art Freas is offline
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OCR sells blue but you have to use it carefully or you get cracking. Right on the edge of compatibility.
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Old 08-24-2020, 03:29 PM
Larry Cazes Larry Cazes is offline
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Are borosilicate aventurines true aventurines like their soft glass equivalents? 8 years ago I was attracted to boro for the color palette which seemed to have the best striking and sparkle glasses in a myriad of colors and I have not been disapointed.
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Old 08-24-2020, 05:27 PM
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I don't claim to know boro at all but at the same time, it would really have to be a batch glass to pull it off. You have to get inside the molecule.
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Old 08-24-2020, 08:21 PM
Larry Cazes Larry Cazes is offline
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Quote:
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I don't claim to know boro at all but at the same time, it would really have to be a batch glass to pull it off. You have to get inside the molecule.
The variety of boro sparkles is huge both striking and not and the effects are stellar. Trautman made some of the best as well as a series of 3 different silver striking variants that are amazing.
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Old 08-25-2020, 08:17 AM
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The only stuff I ever tested for Paul was the 104 stuff after he had sold Northstar. One of his employees did take the class back in 2013. Smart guy.
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Old 08-25-2020, 04:55 PM
Larry Cazes Larry Cazes is offline
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The only stuff I ever tested for Paul was the 104 stuff after he had sold Northstar. One of his employees did take the class back in 2013. Smart guy.
Since then he reincorporated as TAG glass and now just recently resold the works to NS again. As TAG his glass was phenomenal.
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