Definition
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Discoverer
Etymology
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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.
From the village of Luxulyan in Cornwall, England, where this variety of granite is found
Coarse Grained Rock, Opaque Rock
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Ferdinand von Hochstetter
From the name of Dun Mountain, New Zealand, + -ite1
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Opaque Rock