Chemical Engineering - Materials and Construction - Discussion
Discussion Forum : Materials and Construction - Section 2 (Q.No. 45)
45.
The softest material just next to talc in the Mhos scale is
Discussion:
1 comments Page 1 of 1.
Vandna said:
8 years ago
Mohs scale of mineral hardness:-
Mohs hardness ---------- Minerals --------- Absolute hardness.
1 ------------------- Talc ------------------- 1
2 ------------------- Gypsum ------------------- 3
3 ------------------- Calcite ------------------- 9
4 ------------------- Fluorite ------------------- 21
5 ------------------- Apatite ------------------- 48
6 ------------------- Feldspar ------------------- 72
7 ------------------- Quartz ------------------- 100
8 ------------------- Topaz ------------------- 200
9 ------------------- Corundum ------------------- 400
10 ------------------- Diamond ------------------- 1600
Mohs hardness ---------- Minerals --------- Absolute hardness.
1 ------------------- Talc ------------------- 1
2 ------------------- Gypsum ------------------- 3
3 ------------------- Calcite ------------------- 9
4 ------------------- Fluorite ------------------- 21
5 ------------------- Apatite ------------------- 48
6 ------------------- Feldspar ------------------- 72
7 ------------------- Quartz ------------------- 100
8 ------------------- Topaz ------------------- 200
9 ------------------- Corundum ------------------- 400
10 ------------------- Diamond ------------------- 1600
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