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If a mineral can scratch fluorite and it can be scratched by a knife what is the hardness of the mineral
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If a mineral can scratch fluorite and it can be scratched by a knife what is the hardness of the mineral

User Grefab
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1 Answer

11 votes

Answer:

The hardness rating is 4.

Step-by-step explanation:

Calcite sits at a hardness rating of 3 and is very easily scratched with a knife and/copper coin. This is where most Marbles, limestones, travertines, rate.

Meanwhile, Fluorite sits at hardness 4 and can be scratched by a knife.

User Mittelmania
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