1 Definition
1.1 Definition
Luxullianite is a rare type of granite, known for presence of clusters of radially arranged acicular tourmaline crystals which are enclosed by phenocrysts of orthoclase and quartz in a matrix of quartz, tourmaline, alkali feldspar, brown mica.
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
1.2 History
1.2.1 Origin
England
Tamil Nadu, India
1.2.2 Discoverer
1.3 Etymology
From the village of Luxulyan in Cornwall, England, where this variety of granite is found
From Job Charnock, an administtrator of East India Company
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock