1 Definition
1.1 Definition
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
1.2 History
1.2.1 Origin
USA
Western Australia, Minnesota
1.2.2 Discoverer
1.3 Etymology
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
1.4 Class
Igneous Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock