roscoelite

[ ros-koh-lahyt ]

noun

, Mineralogy.

1. a brown variety of muscovite in which some aluminum is replaced by vanadium.

Word History and Origins

Origin of roscoelite¹

1875–80; named after Sir Henry Roscoe (1833–1915), English chemist; -lite

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg