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Needing mineral identification help

Posted by Robert Sellers  
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Robert Sellers May 19, 2017 07:01PM
Trying to identify some of the nicer pieces in my collection. I really like this one and thought it was perfect to start with. Any help would be greatly appreciated. It is about 6x4 in.

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Gary Weinstein May 19, 2017 09:09PM
Looks like common Mexican matrix with calcite crystals and the green could be Malachite or some other minerals like rosasite and auricalcite if bluer than it seems in your photo.
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Scott Rider May 19, 2017 09:28PM
Robert, please take more images, and if you can, get really clear images of the green areas. Its probably malachite or rosasite but the image is too far and little too blurry to tell.

If you plan on asking for more identifications, we'll need multiple images, close, and little further away from the "main" crystals. We'll also need to know what the origin is, like what mine or quarry it came from.
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Dana Slaughter May 19, 2017 10:40PM
Agree with Gary...almost certainly the ubiquitous Ojuela mine, Mapimi, Mexico material---could be calcite with austinite, malachite or rosasite---aurichalcite seems less likely.
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Alfred L. Ostrander May 19, 2017 11:08PM
The association of what appears to be calcite with the green mineral is suggestive of conichalcite.

How true to color is your photo? If it really is as green as the photo appears to be that could rule out rosasite and aurichalcite as they tend to be much more blue in color.
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