Mineral Factbook

Perite

PbBiO2ClIMA symbol: Peapproved

Perite is a halide mineral with the formula PbBiO2Cl, crystallizing in the orthorhombic system. It has a calculated density of 8.241 g/cm3. Its streak is yellow.

Photos

Perite specimen photo
David Hospital - www.purple-sky-minerals.com · CC BY-SA 3.0 · Commons
Perite specimen photo
Simone Ferrante · CC BY 3.0 · Commons

Crystallography

Crystal systemorthorhombic crystal systemWikidata (CC0)
Space groupB m m b
Cell (Å, °)a = 5.627, b = 5.575, c = 12.425; α = 90, β = 90, γ = 90
Cell volume389.779 ų, Z = 4
Axial ratios1.0093:1:2.2287calculated from COD 9012425
Source structureCOD 9012425 (Arkiv for Mineralogi och Geologi, 1960)

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.8623.7732.8131.982.7871.634
I/I₀10050.924.223.823.619.2

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9012425; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)8.241 g/cm³calculated from COD 9012425
Streak
yellowsingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight483.63 g/molcalculated from the IMA formula
Composition (wt%)Pb 42.84%, Bi 43.21%, O 6.62%, Cl 7.33%

Classification

Nickel-Strunz (10th)3.DC.30Wikidata (CC0)
Nickel-Strunz (9th)3.DC.30Wikidata (CC0)