pyroxene
(noun) any of a group of crystalline silicate mineral common in igneous and metamorphic rocks
Source: WordNet® 3.1
pyroxene (plural pyroxenes)
(mineral) Any of a group of crystalline minerals containing silicates of iron, magnesium and calcium.
Source: Wiktionary
Pyr"ox*ene, n. Etym: [F. pyroxène, from Gr. (Min.)
Definition: A common mineral occurring in monoclinic crystals, with a prismatic angle of nearly 90Âş, and also in massive forms which are often laminated. It varies in color from white to dark green and black, and includes many varieties differing in color and composition, as diopside, malacolite, salite, coccolite, augite, etc. They are all silicates of lime and magnesia with sometimes alumina and iron. Pyroxene is an essential constituent of many rocks, especially basic igneous rocks, as basalt, gabbro, etc.
Note: The pyroxene group contains pyroxene proper, also the related orthorhombic species, enstatite, bronzite, hypersthene, and various monoclinic and triclinic species, as rhodonite, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition
8 July 2024
(noun) a line or route along which something travels or moves; “the hurricane demolished houses in its path”; “the track of an animal”; “the course of the river”
Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. When coffee berries turn from green to bright red – indicating ripeness – they are picked, processed, and dried. Dried coffee seeds are roasted to varying degrees, depending on the desired flavor.
