Origin of biotite
OTHER WORDS FROM biotitebi·o·tit·ic [bahy-uh-tit-ik], /ˌbaɪ əˈtɪt ɪk/, adjective
Words nearby biotite
How to use biotite in a sentence
Hornblende and biotite are the ferromagnesian constituents and vary much in relative importance.Mount Rainier|Various
Biotite, if present, is brown; epidote is yellow or colourless; rutile, apatite and quartz all occur with some frequency.
Minettes contain biotite and orthoclase; kersantites, biotite and plagioclase.
Both in the hand specimens and in microscopic slides of lamprophyric rocks biotite and hornblende are usually conspicuous.
A special group of monchiquites rich in deep brown biotite has been called fourchites (after the Fourche Mountains, Arkansas).