List: Geological rock types

Clue: A metamorphic rock composed primarily of amphibole(A rock type - Geology)
Answer: Amphibolite
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Clue: An igneous ultramafic rock composed predominantly of plagioclase(A rock type - Geology)
Answer: Anorthosite
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Clue: A very fine grained intrusive igneous rock(A rock type - Geology)
Answer: Aplite
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Clue: A sedimentary rock similar to sandstone(A rock type - Geology)
Answer: Arkose
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Clue: A fine grained chemical sedimentary rock composed of iron oxide minerals(A rock type - Geology)
Answer: Banded iron formation
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Clue: A volcanic rock of mafic composition(A rock type - Geology)
Answer: Basalt
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Clue: A class of basaltic rocks containing relatively small amounts of the tbread elements yttrium and ytterbium(A rock type - Geology)
Answer: Adakite
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Comments: Statistics: 882 Images: 0

Clue: A class of basalts formed from Ocean Island (hot spot) magmatism(A rock type - Geology)
Answer: Hawaiite
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Clue: A metamorphic rock composed of sodic amphiboles with a distinct blue colour(A rock type - Geology)
Answer: Blueschist
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Clue: A sedimentary or tectonic rock composed of fragments of other, broken rocks(A rock type - Geology)
Answer: Breccia
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Clue: A rare igneous rock composed of >50% carbonate minerals(A rock type - Geology)
Answer: Carbonatite
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Comments: Statistics: 840 Images: 0

Clue: A rock formed by faulting(A rock type - Geology)
Answer: Cataclasite
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Comments: Statistics: 1114 Images: 0