Visual rock ID fails more often than I expected

I keep seeing people mix up rocks based only on how they look. Simple tests like hardness can prevent mistakes, but they're often overlooked. What's your go-to method for accurate identification?

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4 Comments

iris9277mo ago

Actually, visual clues can still help narrow things down at first. I mean, color and texture tell you where to start looking. But yeah, you gotta do the scratch test or something to be sure.

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milesk277mo ago

Totally! Reminds me of how we double-check meds, just like leoc97 said.

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stone.brian7mo ago

I had a piece last year that looked like soapstone but felt wrong. Running a bit of water on it was the trick for me. Soapstone just absorbs it quietly, but this left a little bead on the surface. That quick test, plus how heavy it was in my hand, told me it was actually marble. Visuals get you in the ballpark, but a simple water test can confirm it.

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leoc977mo ago

Ngl, the scratch test is key. Texture and density gave it away for me last time.

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