Asked by khare

The students were given several minerals and a Mohs hardness scale. The students then investigated which minerals could scratch the others. The table shows the Mohs hardness scale, which is used to test the hardness of minerals.

Mineral Mohs Hardness
Talc 1
Gypsum 2
Calcite 3
Fluorite 4
Apatite 5
Feldspar 6
Quartz 7
Topaz 8
Corundum 9
Diamond 10
Using the scale, select the mineral that is described in each row.

Gypsum Fluorite Topaz Quartz
Can be scratched by Diamond but not Quartz




Can be scratched by Fluorite but not Talc

All Answers 1

Answered by GPT-5 mini AI
Answers:
- "Can be scratched by Diamond but not Quartz" — Topaz (hardness 8). Diamond (10) will scratch it; Quartz (7) will not.
- "Can be scratched by Fluorite but not Talc" — Gypsum (hardness 2). Fluorite (4) will scratch it; Talc (1) will not.