Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
Sandstone is defined as a rock which is composed of sand-sized grains of various minerals mostly of uniform size and often are smooth and rounded
History
Origin
USA
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Discoverer
Unknown
Unknown
Etymology
From 17th century, because of its greasy feel and use like a soap
From its composition, sand and stone
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Family
Group
-
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Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock