Perite PbBiO2 Cl IMA symbol: Pe approved
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.
Crystallography Crystal system orthorhombic crystal systemWikidata (CC0) Space group B m m b Cell (Å, °) a = 5.627, b = 5.575, c = 12.425; α = 90, β = 90, γ = 90 Cell volume 389.779 ų, Z = 4 Axial ratios 1.0093:1:2.2287calculated from COD 9012425 Source structure COD 9012425 (Arkiv for Mineralogi och Geologi, 1960)
Powder X-ray diffraction (calculated) 2θ (degrees, Cu Kα1) I/I₀ (max 100) d (Å) 2.862 3.773 2.813 1.98 2.787 1.634 I/I₀ 100 50.9 24.2 23.8 23.6 19.2
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 source Wikidata (CC0)
Chemistry (calculated) Molecular weight 483.63 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)