kemileywenMarine
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A mineral leaves a gray trail when scraped against an unglazed porcelain plate.

Which property of a mineral is being measured?

A.
luster

B.
streak

C.
color

D.
hardness

Respuesta :

Edufirst
D. Hardness.

A measure of hardness is the property that a material scratches or be scratched.

The principle is that a harder material will scratch a softer one.
Rem23
It's D Hardness, Which is not a material luster,streak and color All are involved With each other in any rock

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