biotite
(noun) dark brown to black mica found in igneous and metamorphic rock
Source: WordNet® 3.1
biotite (countable and uncountable, plural biotites)
(mineral) A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron.
Source: Wiktionary
Bi"o*tite, n. Etym: [From Biot, a French naturalist.] (Min.)
Definition: Mica containing iron and magnesia, generally of a black or dark green color; -- a common constituent of crystalline rocks. See Mica.
Source: Webster’s Unabridged Dictionary 1913 Edition
28 January 2025
(noun) a slight amount or degree of difference; “a tad too expensive”; “not a tad of difference”; “the new model is a shade better than the old one”
International Coffee Day (September 29) is an occasion to promote and celebrate coffee as a beverage, with events occurring in places across the world. A day to promote fair trade coffee and raise awareness for the coffee growers’ plight. Other countries celebrate this event on October 1.
