Kai
spending too much on rocks
Member since December 2018
Posts: 331
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Post by Kai on Feb 1, 2019 13:44:05 GMT -5
So a colleague knocked her "energy pyramid" off her desk and the top chipped off. Of course now the "energy is compromised", so I got to take the stone. I broke it apart and I'm planning to add it to my next batch of rough. I'm going to do some pre-shaping first to get rid of the worst pointy corners. Any idea what type of rock this may be? It's pretty hard, but brittle.
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Post by vegasjames on Feb 1, 2019 14:03:37 GMT -5
Looks like calcite "onyx" commonly used to make things like chess set pieces for tourists.
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Post by pauls on Feb 1, 2019 14:44:37 GMT -5
Calcite is my guess too. Called Onyx but it's not really, Onyx is Agate, this is probably calcite flowstone or stalactites from cave formations. It will actually be quite soft in the tumbler so keep an eye on it, It will be difficult to get a polish in the tumbler because of its softness.
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wpotterw
spending too much on rocks
Member since September 2016
Posts: 421
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Post by wpotterw on Feb 1, 2019 17:53:53 GMT -5
So a colleague knocked her "energy pyramid" off her desk and the top chipped off. Of course now the "energy is compromised", so I got to take the stone. I broke it apart and I'm planning to add it to my next batch of rough. I'm going to do some pre-shaping first to get rid of the worst pointy corners. Any idea what type of rock this may be? It's pretty hard, but brittle. Travertine, aka flowstone.
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Post by Peruano on Feb 1, 2019 20:55:37 GMT -5
Try a bit of acid on it. Vinegar should fizz a bit if its calcite or travertine No reaction expected if its silica related.
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Kai
spending too much on rocks
Member since December 2018
Posts: 331
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Post by Kai on Feb 2, 2019 5:32:47 GMT -5
Preshaping is done and it proved that the stone was actually quite soft, just like pauls said. It just melted in my hands like butter against that grinding machine. It also proved that it is even more brittle than I initially thought. Whole chunks were flaking off, that doesn't look well
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Post by Toad on Feb 10, 2019 21:10:04 GMT -5
You're lucky all the energy leaked out before you hit it with a hammer - otherwise BOOM!
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Post by vegasjames on Feb 10, 2019 21:46:27 GMT -5
You're lucky all the energy leaked out before you hit it with a hammer - otherwise BOOM! That was hilarious!!!
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Kai
spending too much on rocks
Member since December 2018
Posts: 331
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Post by Kai on Feb 11, 2019 0:24:08 GMT -5
You're lucky all the energy leaked out before you hit it with a hammer - otherwise BOOM! Hahaha, brilliant!!!
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Feb 11, 2019 0:48:06 GMT -5
Kai - Since you mention grinding it, too bad you didn't reshape it to a slightly smaller pyramid, instead of breaking it up. Lynn
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agatemaggot
Cave Dweller
Member since August 2006
Posts: 2,195
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Post by agatemaggot on Feb 11, 2019 1:49:11 GMT -5
YUP !
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Kai
spending too much on rocks
Member since December 2018
Posts: 331
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Post by Kai on Feb 11, 2019 12:12:01 GMT -5
Thanks for the feedback, but I didn't want a pyramid. You can't really do much with a pyramid apart from setting it on a desk and leaving it there to gather dust (and no, I don't think it had any sort of "energy")
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Post by TheRock on Feb 12, 2019 1:23:52 GMT -5
You're lucky all the energy leaked out before you hit it with a hammer - otherwise BOOM! Yeah that kinda tickled my fancy too!
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