Definition
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Discoverer
Etymology
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Minette is a variety of Lamprophyre and is porphyritic alkaline igneous rock which is mainly dominated by biotite and potassic feldspar
From French mine ore, mine + ette
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt
Christian Leopold von Buch
From Latin glaber bare, smooth, bald
Coarse Grained Rock, Opaque Rock