Physics, 12.08.2020 07:01, jady20krazy

Based on The MOHS hardness Scale, which mineral could be scratched by a penny but not by a fingernail A. Fluorite
B. Calcite
C. Gypsum
D. Talc

Based on The MOHS hardness Scale, which mineral could be scratched by a penny but not by a fingerna

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Based on The MOHS hardness Scale, which mineral could be scratched by a penny but not by a fingernai...