Which minerals that make up the Mohs scale are harder than a glass plate?
A)beryl, garnet, tourmaline
B)calcite, fluorite, apatite
C)feldspar, quartz, topaz, corundum, diamond
D)gypsum and talc

Question

Quizplus · Accepted Answer

The minerals feldspar, quartz, topaz, corundum, and diamond are all harder than a glass plate, and they make up the Mohs scale from 6 to 10. Beryl, garnet, and tourmaline (A) are all below a glass plate on the Mohs scale, with hardness values of 7.5, 7-7.5, and 7-7.5 respectively. Calcite, fluorite, and apatite (B) are also below a glass plate, with hardness values of 3, 4, and 5 respectively. Gypsum and talc (D) are the two minerals with the lowest hardness values on the Mohs scale, with values of 2 and 1 respectively.

Which Minerals That Make Up the Mohs Scale Are Harder