Civil Engineering - Building Materials - Discussion
Discussion Forum : Building Materials - Section 6 (Q.No. 23)
23.
The softest rock is
Discussion:
3 comments Page 1 of 1.
Dinesh said:
4 years ago
Moh's hardness number be like;
Talc 1
Gypsum 2.
Calcite 3.
....
Topaz 8.
Diamond 10.
So, the talc is the softest and the diamond is hardest.
Talc 1
Gypsum 2.
Calcite 3.
....
Topaz 8.
Diamond 10.
So, the talc is the softest and the diamond is hardest.
(1)
K.N. Vasoya said:
7 years ago
IT should be quartz.
Amit ami sharma said:
9 years ago
Talc is a clay mineral composed of hydrated magnesium silicate with the greasy feel. Its streak is white. Soapstone is a metamorphic rock composed predominantly of talc.
Formula : Mg3Si4O10(OH)2.
Optical properties: Biaxial (-).
Crystal class : Either monoclinic (2m) or triclinic.
Crystal system : Monoclinic or triclinic.
Formula : Mg3Si4O10(OH)2.
Optical properties: Biaxial (-).
Crystal class : Either monoclinic (2m) or triclinic.
Crystal system : Monoclinic or triclinic.
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