1 Definition
1.1 Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
1.2 History
1.2.1 Origin
USA
1.2.2 Discoverer
Unknown
1.3 Etymology
From 17th century, because of its greasy feel and use like a soap
1.4 Class
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock