1. Any of several common, widespread aluminum or calcium silicate minerals occurring in two internally isomorphic series, (Mg, Mn, Fe)3Al2Si3O12 and Ca3(Cr, Al, Fe)2Si3O12, generally crystallized, often embedded in igneous and metamorphic rocks, and colored red, brown, black, green, yellow, or white and used both as gemstones and as abrasives.
2. A dark to very dark red.
[Middle English, from Old French grenate, from grenat, pomegranate-red, probably from Latin grntum, pomegranate, from neuter of grntus, seedy; see pomegranate.]
A tackle for hoisting light cargo.
[Middle English garnett, probably from Middle Dutch garnt.]
(Earth Sciences / Minerals) any of a group of hard glassy red, yellow, or green minerals consisting of the silicates of calcium, iron, manganese, chromium, magnesium, and aluminium in cubic crystalline form: used as a gemstone and abrasive. Formula: A3B2(SiO4)3 where A is a divalent metal and B is a trivalent metal
[from Old French grenat, from grenat (adj) red, from pome grenatepomegranate]
(Transport / Nautical Terms) Nautical a tackle used for lifting cargo
[probably from Middle Dutch garnaat]
Any of several common red, brown, black, green, or yellow minerals having the general chemical formula A3B2SiO8, where A is either calcium (Ca), magnesium (Mg), iron (Fe), or manganese (Mn) and B is either aluminum (Al), manganese, iron, chromium (Cr), or vanadium (V). Garnet crystals are dodecahedral in shape, transparent to semitransparent, and have a vitreous luster. They usually occur in metamorphic rocks but also occur in igneous and sedimentary rocks.
garnet /grnt/ n. a red stone used in jewelry: My new ring has three garnets in it.