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单词 bytownite
释义

bytownite

[ bahy-tou-nahyt ]
/ baɪˈtaʊ naɪt /

noun

a blue to dark-gray mineral near the anorthite end of the plagioclase feldspar group.

Origin of bytownite

1865–70; named after Bytown (old name of Ottawa, Canada), where first found; see -ite1

Words nearby bytownite

by the short hairs, by the skin of one's teeth, by the sweat of one's brow, by the way, Bytom, bytownite, by turns, by virtue of, byway, by way of, by weight
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for bytownite

  • These intermediate members are the lime-soda felspars known as oligoclase, andesine, labradorite and bytownite.

    Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2|Various
  • The felspar ranges from bytownite to oligoclase, being usually a variety of labradorite; orthoclase is scarce.

    Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 5|Various
  • Isolated crystals of bytownite bounded by well-defined faces are unknown.

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4|Various

Scientific definitions for bytownite

bytownite
[ bī-tounīt ]

A bluish to dark gray triclinic mineral of the plagioclase feldspar group that contains a higher proportion of calcium than sodium. Bytownite occurs in alkaline igneous rocks. Chemical formula: (Ca,Na)(Si,Al)4O8.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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更新时间:2024/9/21 13:42:48