Definition
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Etymology
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Mugearite is a type of oligoclase bearing basalt, also comprising of olivine, apatite, and opaque oxides
Durable Rock, Medium Hardness Rock
Blue Granite is an igneous rock and a variety of Larvikite, notable for the presence of thumbnail-sized blue crystals of feldspar
From the color of rock, Blue
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock