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My professor said to always check the cleavage on a sample, and I finally get why
He told me last semester, 'If you don't look at the way it breaks, you're just guessing at the mineral.' I was trying to ID a piece of calcite from a site in Kentucky and kept thinking it was quartz until I saw the perfect rhombohedral cleavage. How many times have you guys skipped that step and gotten it wrong?
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claire99919d ago
Hardness test first, every time.
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grant.parker18d ago
Forget hardness, check for hidden cracks first.
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