Question

which is the Hardest non - mattelic mineral​

Answer 1

Answer:

MINERAL NAME LUSTER (appearance) HARDNESS

Quartz Non-metallic (any color) Harder than glass

Muscovite Non-metallic (gold-clear) Softer than glass

Fluorite Non-metallic (purple, green, yellow) Softer than glass

Calcite Non-metallic Softer than glass

Answer 2

Answer:

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