Definition
Origin
Discoverer
Etymology
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Other Categories
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
Western Australia, Minnesota
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
Coarse Grained Rock, Opaque Rock
Theralite is a plutonic hylocrystalline igneous rock consisting of augite, olivine, calcic plagioclase and nepheline
Fine Grained Rock, Opaque Rock