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I think this is lapis lazuli partially encased by a clay metamorphosing into rock, your thoughts?

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What makes you think it is lapis lazuli?
answered Apr 8, 2016 by Weasel (58,940 points)
It's hard to tell the color now be accuse I soaked it in 3% hydrogen peroxide as well as water. If I buffed it out you would see dark blue and blue with white soft stone(calcite?). The rust is new caused by my attempts to get the very hard grey stuff off. It's hard to see but there is a vein of silver in the specimen. I'm not going to do anything else. I'm new to collecting and need advice!
Scraping some clay off with a knife or chisel would expose some of the material for us to see and will not hurt the value of the stone. Is there Eason to believe the specimen is from an area which produces it.
I found it near a former mine though the mine was on a contiguous range a small chance it could have made it to the wash. I will try to chip off some of the hard grey material. Also I'll clean up the area near the silver(?) vein. It's raining so that's a great indoor project! Thanks.