Thomas7569 Thomas7569

03-11-2017
Geography

contestada

the hardness of a unknown mineral can be found by

A) subjecting it to a strength test

B) calculating its density

C) comparing it to the other known samples using a scratch test

D) grinding it on a streak plate

Respuesta :

ezranderson ezranderson

03-11-2017

I would say that the answer is C

Answer Link

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