According to Mohs Hardness Scale, which statement below is TRUE: click hardness scale in the the picture to the right. A. Talc can scratch Gypsum B. Corundum can scratch Diamond C. Topaz can scratch Quartz D. You can scratch Apatite with your fingernail

1 answer

Based on the Mohs Hardness Scale, the true statement is:

D. You can scratch Apatite with your fingernail.

Here's a brief explanation of each statement:

A. Talc (1) cannot scratch Gypsum (2); it is the softest mineral on the scale.

B. Corundum (9) cannot scratch Diamond (10); diamond is harder than corundum.

C. Topaz (8) can scratch Quartz (7), so this is false; quartz cannot be scratched by topaz, but the statement refers to the reverse.

D. Apatite (5) can indeed be scratched by a fingernail, which is typically rated at around 2.5 to 3 on the Mohs scale, making this statement true.