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top 3 pics I believe are obsidian might be wrong streak clear and scratched with knife
Nope, sounds like it could be correct.
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host rock streaks greenish scratched with a penny green gem streaks clear scratched with knife
Not sure what hardness a penny is, first thought was flourite. Not sure though.
Host rock is probably some kind of Mica schist.
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Top left one has a resemblance of black Tourmaline.
Try scratching it again, shouldn't get scratched by a knife.
top 3 are black but if you can see has green to yellowish green in it streaks clear and can be scratched with a knife
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this one is purple in light sorry couldn't get a picture of it in the sun streaks clear scratches with a knife.