What is hardness mineral?
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Similarly, what is the hardest and softest mineral?
All conceivable minerals fit in this scale, since Talc is the softest known mineral and Diamond the hardest.
Beside above, what mineral has a hardness of 7? quartz
Also to know, are all minerals hard?
Minerals with small atoms, packed tightly together with strong covalent bonds throughout tend to be the hardest minerals. A mineral can only be scratched by a harder substance. A hard mineral can scratch a softer mineral, but a soft mineral can not scratch a harder mineral (no matter how hard you try).
What is the hardness of a mineral if it scratches a penny?
The Mohs Hardness Scale ranks the order of hardness of minerals and some common objects. For example, your fingernail can scratch the minerals talc and gypsum, with a hardness of 2 or lower. A copper penny can scratch calcite, gypsum, and talc.