Definition
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
History
Origin
Western Australia, Minnesota
USA
Discoverer
Unknown
Unknown
Etymology
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
From 17th century, because of its greasy feel and use like a soap
Class
Sedimentary Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Soft Rock
Family
Group
-
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock