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Author Topic: need an ID  (Read 210 times)

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need an ID
« on: February 26, 2023, 09:40:26 AM »

This rock was found in a yard in Prescott, Arizona.  Apparently left by a former resident, and was obviously cut for lapidary purposes at some point.  My first thought was variscite, but it is very hard, like silica.  Pics are both cut sides... any ideas what this might be?


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Re: need an ID
« Reply #1 on: February 26, 2023, 11:06:32 AM »

It looks like medium grade chrysoprase. There was a green silica mine out side Eli Nevada for  many years . They did sell at Tucson and a geologist once said that the best grade was extremely rare and as beautiful as any gemstone. The family lost their claim to a mining giant and the deposit was ground up for gold content.
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