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I'm trying to identify this rock. It's fairly fine-grained and has a green tint. It's fairly heavy for its size, I cannot scratch it with a figernail but I can make a scratch with a knife. The rock is around 2x3x4 inches.

It looks like a metamorphic rock to me with some quartz embedded but I'm not sure.

Unidentified rock photo 1

Unidentified rock photo 2

Thank you!

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  • $\begingroup$ "It looks like a metamorphic rock to me with some quartz embedded but I'm not sure." - I agree $\endgroup$ – Gimelist Oct 13 '18 at 9:17
  • $\begingroup$ Do you know where this greenish color would come from? $\endgroup$ – Kamchatka Oct 15 '18 at 15:26
  • $\begingroup$ Probably either from chlorite or an amphibole such as actinolite $\endgroup$ – Gimelist Oct 15 '18 at 22:11

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