pegmatite
(noun) a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements
Source: WordNet® 3.1
pegmatite (plural pegmatites)
A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.
Source: Wiktionary
Peg"ma*tite, n. Etym: [From Gr. pegmatite. See Pegm.] (Min.) (a) Graphic granite. See under Granite. (b) More generally, a coarse granite occurring as vein material in other rocks.
Source: Webster’s Unabridged Dictionary 1913 Edition
16 January 2025
(noun) a collection of rules or prescribed standards on the basis of which decisions are made; “they run things by the book around here”
Contrary to popular belief, coffee beans are not technically beans. They are referred to as such because of their resemblance to legumes. A coffee bean is a seed of the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit, often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit.
