Any ideas how to name this rock?

costaricajc · 2024-09-09T13:46:29+0000

This is a greenish rock very hard, smooth to the touch, with that inbeded crystal that doesn't fizz with vinegar, by hammering it we found what it looks like pyrite crystals. Is this Andesite?

By costaricajc
September 9 in Rocks & Minerals

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