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Rock Identification xkcd.com/3068

They would lick it first.

This is true. Everytime I've seen people ask geologists on the internet to id rocks, the first question they get back is "have you licked it?"

Licking rocks is a really good way to identify cinnabar and arsenopyrite. (Both are in my collection, and I will be licking neither).

26/3/25, 9:21 pm0 reposts1 like

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