Physics, 30.06.2019 01:30 izzysmith6836
An unknown mineral is scratched by a penny. it must a: be talc b: have a mohs hardness of 10 c: be softer than a diamond d: have perfect cleavage
Answers: 1
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An unknown mineral is scratched by a penny. it must a: be talc b: have a mohs hardness of 10 c: be...
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