Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks
History
Origin
USA
USA
Discoverer
Unknown
Unknown
Etymology
From 17th century, because of its greasy feel and use like a soap
From silica, the main mineral content of Jasperoid
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock