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roscoelite

[ros-koh-lahyt]
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noun Mineralogy.
  1. a brown variety of muscovite in which some aluminum is replaced by vanadium.

Origin of roscoelite

1875–80; named after Sir Henry Roscoe (1833–1915), English chemist; see -lite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for roscoelite

Historical Examples

  • Locally the sandstones contain as much as 20 per cent of the roscoelite.

    The Economic Aspect of Geology

    C. K. Leith

  • Roscoelite is a vanadium mica from a gold mine at Granite creek, California.

    The Galaxy

    Various