Question

___________ mineral is as hard as iron and light in weight.

a) steel b) Aluminium c) Manganese d) None of the above​

Answer 1

MINERAL NAME LUSTER (appearance) HARDNESS

Potassium Feldspar Non-metallic (Pink to white) Slightly harder than glass

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

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Answer 2

Answer:

aluminum.......

explanation.........

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