Definition
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
History
Origin
Western Australia, Minnesota
Hawaii Islands
Discoverer
Unknown
Unknown
Etymology
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
From Greek pikros bitter + -ite, 19th century
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock