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Post by Starguy on Feb 14, 2020 15:19:42 GMT -5
I tried a Linde on the new saw today. It was 29 carats when I started.  After proving the star it weighed 26.5 carats.  After slicing it was 23.5 carats with 20 carats left after removing the stem the boule was grown on.  This was one of my smaller boules. I didn’t want to start on the best material. Here is my full collection.  |
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Post by MsAli on Feb 14, 2020 15:32:29 GMT -5
Brent what is a boule?
Looks like an alien pod
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Post by Starguy on Feb 14, 2020 16:18:01 GMT -5
MsAli A boule is the form a man made sapphire takes. Just like real sapphire, they are hardness 9. These just happen to exhibit a very nice star similar to the one in my avatar photo. I fact, my avatar is the end of the largest boule in the collection photo above. They do look like alien pods.
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Post by RocksInNJ on Feb 14, 2020 16:24:42 GMT -5
You humans seem to have more experience with aliens than I do.  |
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gemfeller
Cave Dweller 
Member since June 2011
Posts: 4,061 
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Post by gemfeller on Feb 14, 2020 16:55:34 GMT -5
Actually, "boule" is French for "ball." The first flame-fusion rubies made in the 1890s by a Frenchman named Verneuil took a shape similar to a ball in their raw state, before cutting. Even though most lab-made synthetic boules made today, whether corundum, spinel or other stones often look more like cylinders with a rounded end, they're still called boules.
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Post by knave on Feb 14, 2020 17:06:57 GMT -5
Is there a thread here about Apple’s major foray into screen sized boule making? I’d be interested.
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Post by toiv0 on Feb 14, 2020 17:07:53 GMT -5
I like it
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Post by MsAli on Feb 14, 2020 17:17:52 GMT -5
Thank you for the time to explain this to me. It is really fascinating!
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Post by joshuamcduffie on Feb 14, 2020 17:25:59 GMT -5
I love threads like this! Any pics of you working it into a dome?
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Post by Starguy on Feb 14, 2020 18:12:15 GMT -5
joshuamcduffieI didn’t take any photos of crowning it. I still need to dop it and dome it better. I only spent a few minutes on it to prove it. You can tell it isn’t domed very well yet because the legs of the star are all wobbly. In answer to your question yesterday, I got everything except the big blue one on eBay. The big blue one I got at Quartzite back in the 1980s.
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Post by rockpickerforever on Feb 14, 2020 18:58:34 GMT -5
You humans seem to have more experience with aliens than I do. 
Well, it is only because your kind has visited so often...
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