Name/Title
Garnet var. UvaroviteEntry/Object ID
2009.62.19Description
Chemical Composition: Ca3Cr2(SiO4)3
Crystal System: Hexagonal System
Description: Common Name: Uvarovite
Chemistry: Ca3Cr2(SiO4)3
Group: Garnet
Location: Ural Mountains, Russia
Description: Green druzy crystals of uvarovite on a dark matrix, you can also see other layers of crystal within the matrix
Physical Properties of Uvarovite
Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m)
Cleavage: None
Color: Green.
Density: 3.4 - 3.8, Average = 3.59
Diaphaneity: Transparent to translucent
Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Habit: Lamellar - Thin laminae producing a lamellar structure.
Hardness: 6.5-7 - Pyrite-Quartz
Luminescence: Fluorescent, Short UV=red, Long UV=red.
Luster: Vitreous (Glassy)
Magnetism: Nonmagnetic
Streak: white
Fracture: conchoidal
Hardness: 6 Orthoclase
Luster: Vitreous
Occurrence: Metamorphosed chromite deposits is also call the chromium garnet.
Rock Type: Metamorphic
Specific Gravity: 3.85
Streak: white
Texture: Microcrystaline
Variety: Uvarovite is one of the calcium garnets of the "ugrandite" group, along with grossular and andradite. Its composition is Ca3Cr2(SiO4)3, and it has a brilliant emerald-green color from the chromium ion.Collection
RAGM Mineral CollectionDimensions
Width
2 inDepth
2-1/2 inLength
2-1/2 inWeight
2.81 ozDimension Notes
Dimension taken at widest pointsLocation
Location
Display Case
FS-4Room
Frieda Smith HallBuilding
Crater Rock MuseumCategory
PermanentDate
August 18, 2023