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TIL that not all white rocks are limestone
A drop of acid showed me to check more carefully.
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linda3681mo ago
Wait, you just used acid on a random rock?
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schmidt.ivan1mo ago
People into rocks do this a lot to check what minerals are there. A bit of vinegar or weak acid can show if it's limestone. Saying it's 'random' misses the point of testing. But whatever, I'm just a guy who likes cool stones.
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stella_shah891mo ago
Acid on rocks seems like a lot of work for a hobby. Just pick up the cool looking ones.
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