Definition
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
Mugearite is a type of oligoclase bearing basalt, also comprising of olivine, apatite, and opaque oxides
History
Origin
Western Australia, Minnesota
Skye, Scotland
Discoverer
Unknown
Alfred Harker
Etymology
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
From mugear + -ite
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Opaque Rock