Definition
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Etymology
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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
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite
Durable Rock, Medium Hardness Rock