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cubiccommonSilicates
Garnet
X₃Y₂(SiO₄)₃ (where X=Ca, Mg, Fe²⁺, Mn²⁺; Y=Al, Fe³⁺, Cr³⁺, V³⁺)
A well-formed, reddish-brown garnet crystal, likely exhibiting dodecahedral or trapezohedral faces, with a somewhat rough or natural surface texture.
Garnet Physical Properties
Mohs Hardness
6.5Crystal System
cubicLuster
vitreousStreak Color
whiteCleavage
noneFracture
conchoidalSpecific Gravity
3.1Colors
red, orange, yellow, green, brown, black, pink, purpleTransparency
transparentType Locality
Jeffery Mine, Quebec, CanadaMineral Group
SilicatesUses
jewelry, abrasive, waterjet cutting, collectorAssociated Minerals
quartz, feldspar, mica, kyanite, stauroliteRarity
commonGeological Context
Garnets typically form in metamorphic rocks such as schists and gneisses under high pressure and temperature, but can also be found in some igneous rocks and alluvial deposits.
