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
27 February 2025
(verb) reach the summit (of a mountain); “They breasted the mountain”; “Many mountaineers go up Mt. Everest but not all summit”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
