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Zircon??

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rivarat
starting to spend too much on rocks

Member since June 2016
Posts: 140

Zircon?? Dec 24, 2016 3:26:50 GMT -5

Quote

Post by rivarat on Dec 24, 2016 3:26:50 GMT -5

Picked this up at a local shop, it was sold as a Zircon from Madagascar. I only grabbed it as the crystal shape didn't fit in well with the rest of the zircons.
It didn't cab very well as it was full of cracks, but I gave it a try anyway.
Is it a zircon or sapphire? Whats everyones thoughts?

gemfeller
Cave Dweller

Member since June 2011
Posts: 4,051

Member is Online

Zircon?? Dec 24, 2016 11:40:54 GMT -5

Quote

Post by gemfeller on Dec 24, 2016 11:40:54 GMT -5

It's obviously in the hexagonal crystal system. Zircon's tetragonal so that pretty much eliminates it as a possibility. There are lots of hexagonal minerals but based on personal experience I think your guess is right: non-gem-grade corundum (sapphire/ruby). Corundum is very hard so polishing it can be difficult. The shape and "platy" internal structure say corundum to me.

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rocknrob: I make my own sandwiches and yet I never tip myself... OMG I'm the a@@hole! Nov 11, 2024 11:29:51 GMT -5

amygdule: Her sandwich taste better... Nov 11, 2024 17:07:29 GMT -5 *

rocknrob: There was a shop in Portland, don't know if it's still there called Kenny and Zukes who made the absolute best pastrami sandwiches I have ever had. The problem is every restaurant thinks their sandwich is worth $20 now and seldom makes the grade. Nov 12, 2024 9:53:31 GMT -5

rocknrob: So, to end my thread on sandwiches. If you find your sandwich worthy of that price by all means keep going to that restaurant (chewie)

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parfive: BOLO – Sara w/no h. Nov 13, 2024 15:20:39 GMT -5

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Surf's up - Pastrami on the hoof Nov 13, 2024 16:44:09 GMT -5 *

Wooferhound: I make my Sandwiches without the Bread Nov 14, 2024 12:56:46 GMT -5

amygdule: I like my meat warmed to Body Temp^oF... Then wrapped with a slice of Cheese

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vegasjames: Must be a Swiss cow. You know, these are only cows you can get Swiss cheese from. (laugh)

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parfive: The Scooter knows. Nov 16, 2024 0:36:53 GMT -5

RickB: In theme with things - today is National Bread Day Nov 17, 2024 6:53:42 GMT -5

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