Mineral Factbook

Uvarovite

Ca3Cr2(SiO4)3IMA symbol: Uvapproved

Uvarovite is a silicate mineral with the formula Ca3Cr2(SiO4)3, crystallizing in the cubic system. It has a calculated density of 3.85 g/cm3. Its streak is white.

Photos

Uvarovite specimen photo
Hannes Grobe/AWI · CC BY 3.0 · Commons
Uvarovite specimen photo
Géry PARENT · CC BY-SA 3.0 · Commons
Uvarovite specimen photo
Géry PARENT · CC BY-SA 3.0 · Commons
Uvarovite specimen photo
Géry PARENT · CC BY-SA 4.0 · Commons

Crystallography

Crystal systemcubic crystal systemWikidata (CC0)
Space groupI a -3 d
Cell (Å, °)a = 11.9973, b = 11.9973, c = 11.9973; α = 90, β = 90, γ = 90
Cell volume1726.83 ų, Z = 8
Axial ratios1.0000:1:1.0000calculated from COD 9007149
Source structureCOD 9007149 (Physics and Chemistry of Minerals, 2002) — 1 of 6 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.6831.6032.9992.4491.6641.946
I/I₀10080.467.863.528.623.3

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9007149; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)3.85 g/cm³calculated from COD 9007149
Streak
whitesingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight500.48 g/molcalculated from the IMA formula
Composition (wt%)Ca 24.02%, Cr 20.78%, Si 16.84%, O 38.36%

Classification

Nickel-Strunz (10th)9.AD.25Wikidata (CC0)
Nickel-Strunz (9th)9.AD.25Wikidata (CC0)
Dana (8th)51.4.3b.3Wikidata (CC0)