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A pale green or apple-green mineral, (Ni, Mg)3Si2O5(OH)4, used as a gemstone and as an important nickel ore.

[After Jules Garnier, 19th-century French geologist.]


(Minerals) a green amorphous mineral consisting of hydrated nickel magnesium silicate: a source of nickel
[C19: named after Jules Garnier (died 1904), French geologist]


(ˈgɑr ni əˌraɪt)

an earthy green mineral, hydrous nickel magnesium silicate: an important ore of nickel.
[1875; after Jules Garnier (d. 1904), French geologist; see -ite1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.garnierite - a green mineral consisting of hydrated nickel magnesium silicate; a source of nickel
atomic number 28, Ni, nickel - a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
It exists primarily as pentlandit (NiFe)S and garnierite (Ni, Mg) Si[O.
The oxidised outcrop of the deposit forms a gossan including goethite, malachite and garnierite with metal contents of 0.