bytownite
bytownite
English
Noun
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Definition
A plagioclase feldspar, the fifth member of the Albite-Anorthite solid solution series. Bytownite is rare, and normally occurs in small grains in lime-rich igneous rocks. Clear pale yellow crystals have come from Mexico and Oregon.
Etymology
From Bytown + -ite, named for the type locality in Bytown (now Ottawa), Canada, but this locality was later discredited. The name, however, was kept.
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