Definition
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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
Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
From any intrusive igneous rock, having a majority of carbonate minerals
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock