Question

Which of the following lists minerals in order of hardness from lowest to highest on the Mohs hardness scale?

A. Fingernail, penny, glass, topaz, diamond
B. Calcite, quartz, wire nail, topaz, diamond
C. Gypsum, apatite, topaz, feldspar, corundum
D. Talc, fluorite, fingernail, streak plate, diamond

Answer 1

a fingernail,penny,glass,topaz, diamond

Answer 2

Option A

Step-by-step explanation:

The hardness of all the listed minerals on Mohs hardness scale is as follows-

Finger nail -2 to 2.5

Penny - 3

Glass- 5.5

Topaz - 8

Diamond- 10

Thus in option A, the hardness of minerals is arranged in order of lowest to highest.

Therefore, option A is correct