Recent acquisition corundum

Starguy driving up their electric bill Member since January 2014 Posts: 2,580	Recent acquisition corundum Mar 7, 2019 18:48:30 GMT -5 RWA3006, rockjunquie, and 3 more like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Starguy on Mar 7, 2019 18:48:30 GMT -5 enormous corundum crystal. Hoping for a star.
	Brent

rockjunquie Global Moderator Member since March 2012 Posts: 34,998	Recent acquisition corundum Mar 7, 2019 20:27:22 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rockjunquie on Mar 7, 2019 20:27:22 GMT -5 WOW! I hope it has a star, too.

Pat misunderstood rock expert Member since February 2012 Posts: 11,831	Recent acquisition corundum Mar 7, 2019 20:57:39 GMT -5 via mobile Kai likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Pat on Mar 7, 2019 20:57:39 GMT -5 Good luck! At first I read “Conundrum “. Clicked to see what your issue was.
	Pat

Starguy driving up their electric bill Member since January 2014 Posts: 2,580	Recent acquisition corundum Mar 7, 2019 21:14:59 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Starguy on Mar 7, 2019 21:14:59 GMT -5 It’s showing signs of a star. I’m only through hard wheels so far.
	Brent

Starguy driving up their electric bill Member since January 2014 Posts: 2,580	Recent acquisition corundum Mar 7, 2019 21:17:17 GMT -5 Pat, rockjunquie, and 1 more like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Starguy on Mar 7, 2019 21:17:17 GMT -5 Mar 7, 2019 20:57:39 GMT -5 Pat said: Good luck! At first I read “Conundrum “. Clicked to see what your issue was. Hi Pat. I always seem to have one conundrum or another.
	Brent

gemfeller
Cave Dweller

Member since June 2011
Posts: 4,060

Recent acquisition corundum Mar 7, 2019 23:35:54 GMT -5 1dave likes this

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Post by gemfeller on Mar 7, 2019 23:35:54 GMT -5

Looks good Brent. What's the source? Much of the stuff from Mysore, India will star, and I've cut a bunch of stars from Montana XLs. I have a couple of star sapphires from Tanzania -- not bad color -- that I've half-worked. I keep misplacing them so haven't gotten to the final polish stage yet but they're nice stones. They'll show up when I do my semi-annual clean-up. (Usually it's biennial or longer).

Starguy driving up their electric bill Member since January 2014 Posts: 2,580	Recent acquisition corundum Mar 8, 2019 16:28:04 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Starguy on Mar 8, 2019 16:28:04 GMT -5 I’m pretty sure it’s Mysore. I did a little grinding on it and it looks like it will star. I may need to grind a high dome for it to show. The flat dome show a lot of flash but it’s hard to pick out a star.
	Brent

Kai spending too much on rocks Member since December 2018 Posts: 331	Recent acquisition corundum Mar 8, 2019 17:08:04 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Kai on Mar 8, 2019 17:08:04 GMT -5 Fingers crossed!

gemfeller
Cave Dweller

Member since June 2011
Posts: 4,060

Recent acquisition corundum Mar 8, 2019 17:42:02 GMT -5

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Post by gemfeller on Mar 8, 2019 17:42:02 GMT -5

Mar 8, 2019 16:28:04 GMT -5 Starguy said:

I’m pretty sure it’s Mysore. I did a little grinding on it and it looks like it will star. I may need to grind a high dome for it to show. The flat dome show a lot of flash but it’s hard to pick out a star.

I think high domes are best for star stones. I've seen a few shallow domes on synthetic corundum but never on natural materials.

upliftcrazy having dreams about rocks Married Member since August 2016 Posts: 63	Recent acquisition corundum Mar 8, 2019 23:00:36 GMT -5 via Tapatalk Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by upliftcrazy on Mar 8, 2019 23:00:36 GMT -5 Mar 7, 2019 18:48:30 GMT -5 Starguy said: enormous corundum crystal. Hoping for a star. It always amazes me what beauty comes from a grey looking lump. How much of that will be left when you are done ?
	Sweetheart I didn't cut it open....I swear