blackout5783
starting to spend too much on rocks
Member since November 2011
Posts: 248
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Post by blackout5783 on Mar 3, 2013 13:44:43 GMT -5
Ok, not a whole bag, just two small "rocks". I use quotes because these things are definitely synthetic. Tiny air bubbles on the bottom. I have to post pics, but here's the details:
Cylinder shaped, about 1" and 2" long, flat top and bottom. Bright yellow green color, both are fluorescent yellow under long wave UV. Colorless streak, specific gravity 4.2 and 4.6 respectively. Harder than quartz, but tough to tell beyond that. I have some junky ruby that I think scratched it, but it was tough going.
Will post pics, but any ideas in the meantime?
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blackout5783
starting to spend too much on rocks
Member since November 2011
Posts: 248
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Post by blackout5783 on Mar 3, 2013 13:55:46 GMT -5
The obligatory crappy cell phone pic: Attachments:
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Post by Toad on Mar 3, 2013 16:45:14 GMT -5
Glass? But maybe not if harder than quartz... Sorry
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Minnesota Daniel
freely admits to licking rocks
A COUPLE LAKERS
Member since August 2011
Posts: 891
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Post by Minnesota Daniel on Mar 3, 2013 18:05:46 GMT -5
Cubic Zirconia boules.
Mohs 8.0 - 8.5
Sg is 5.5 - 6, but if they contain air, less of course
Under ultraviolet lighting, Cubic Zirconia typically fluoresces a yellow, greenish yellow or beige color.
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blackout5783
starting to spend too much on rocks
Member since November 2011
Posts: 248
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Post by blackout5783 on Mar 3, 2013 18:44:06 GMT -5
Cubic Zirconia boules. Mohs 8.0 - 8.5 Sg is 5.5 - 6, but if they contain air, less of course Under ultraviolet lighting, Cubic Zirconia typically fluoresces a yellow, greenish yellow or beige color. I was kind of thinking something like that. I wonder how they got in the rock pile at Sterling Hill?
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Minnesota Daniel
freely admits to licking rocks
A COUPLE LAKERS
Member since August 2011
Posts: 891
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Post by Minnesota Daniel on Mar 3, 2013 22:25:08 GMT -5
Singh Industries in Cedar Knolls is a manufacturer. CZ is known for getting bubbles in it. Perhaps this is discarded reject. What kind of rock pile was it in?
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