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what can scratch gypsum but it can be scratched by all other minerals

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regarding the hardness scale
asked May 2, 2015 by smejia2303 (150 points)

1 Answer

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Not sure I understand your question. Gypsum has a hardness of 2 on the Moh's scale, which is very low on the scale and means it has a very low hardness. This means that most minerals can scratch it, and it can only scratch minerals with a hardness lower than 2.
answered May 4, 2015 by hershel (52,780 points)

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