azgnoinc
spending too much on rocks
Member since March 2014
Posts: 484
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Post by azgnoinc on Apr 16, 2014 19:14:57 GMT -5
Picked up a few things and wanted confirmation on a couple & ID on a few. First up - I bought this as Leopard skin jasper but wasn't sure because of all the red in it - either way it's in smaller pieces and tumbling away: Now some mineral pieces from too much time on ebay - they all come from China: Quartz & ?? - what's the yellowish orange stuff covering it? Barite is what I was thinking. Quartz and Prehnite? (I'm assuming): Wasn't sure on this one either as the color is very much like Prehnite but the crystal structure is very different, more like tiny squares: Thanks for any and all help :-)
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Sabre52
Cave Dweller
Me and my gal, Rosie
Member since August 2005
Posts: 20,455
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Post by Sabre52 on Apr 16, 2014 21:29:47 GMT -5
I'm not a mineral guy but that first one is Leopardskin Jasper (orbicular rhyolite). It commonly comes in red and gold tones and sometimes with a gray background....Mel
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azgnoinc
spending too much on rocks
Member since March 2014
Posts: 484
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Post by azgnoinc on Apr 16, 2014 22:02:01 GMT -5
Thanks for the confirmation Mel!!
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Post by washingtonrocks on Apr 17, 2014 11:58:48 GMT -5
Barite seems like a logical ID for that second specimen. Looks like you've got orange Calcite there too...they're often found together. I'd be on board for Quartz with Prehnite on that last specimen. Nice crystals.
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azgnoinc
spending too much on rocks
Member since March 2014
Posts: 484
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Post by azgnoinc on Apr 18, 2014 20:57:55 GMT -5
Thanks Washingtonrocks - the different crystal structure kinda threw me off.
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