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单词 bytownite
释义
by·tow·nite (bī-tounīt)
n.
A blue to dark-gray variety of plagioclase feldspar that contains a higher proportion of calcium than sodium and occurs in alkaline igneous rocks.

[After Bytown, former name of Ottawa, Ontario, near where a sample of the mineral was found.]
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更新时间:2026/6/15 3:28:29