Definition
Origin
Discoverer
Etymology
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Other Categories
Vogesite is a porphyritic alkaline igneous rock and is a variety of Lamprophyre which is dominated by essential amphibole, usually hornblende, and potassic feldspar
From the variety of Lamprophyre Greek lampros bright and shining + porphureos purple
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature
From French schiste, Greek skhistos i.e. split
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock