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Author Topic: Green mineral  (Read 2103 times)

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Sifu

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Green mineral
« on: April 30, 2016, 09:32:27 AM »
Found this on the North Fork of the Teanaway River. It had some polish sitting in the river. It isn't agate or jasper. I vibe tumbled it with these quartz stones, and after the large grit cycle it was reduced in size but polished nicely. Then I made the mistake of putting it in with the agates for a second vibe cycle, with smaller grit. Not only did it shrink further, but the surface lost its nice polish and is now pitted.  :sad:

Hardness is in the 5-6 range. It has a soapy feel in the hands that make it really pleasurable to touch. And I love the vibrant green hue. I'd like to find more of this and figure out how to work it!
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rocks2dust

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Re: Green mineral
« Reply #1 on: April 30, 2016, 09:38:50 AM »
Sounds like serpentine.
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Sifu

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Re: Green mineral
« Reply #2 on: April 30, 2016, 09:56:57 AM »
Thanks. That makes sense, especially given the feel and the amount of serpentinite in the surrounding country rock.
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Gergis

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Re: Green mineral
« Reply #3 on: April 30, 2016, 10:32:11 AM »
Do ya have more pics? I would take some outdoors and at different angles

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lithicbeads

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Re: Green mineral
« Reply #4 on: April 30, 2016, 05:24:58 PM »
If the area that looks like a manganese dendrite is in fact a dendrite I would vote for a piece of nephrite.The hardness is correct for either.
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