Dimorphite As4 S3 IMA symbol: Dim grandfathered
Dimorphite is a sulfide or sulfosalt mineral with the formula As4S3, crystallizing in the orthorhombic system. It has a calculated density of 3.601 g/cm3. Its streak is yellow.
Crystallography Crystal system orthorhombic crystal systemWikidata (CC0) Space group P n m a Cell (Å, °) a = 11.21, b = 9.9, c = 6.58; α = 90, β = 90, γ = 90 Cell volume 730.242 ų, Z = 4 Axial ratios 1.1323:1:0.6646calculated from COD 9012836 Source structure COD 9012836 (Journal of the Chemical Society, Dalton Transactions, Inorganic Chemistry, 1973)
Powder X-ray diffraction (calculated) 2θ (degrees, Cu Kα1) I/I₀ (max 100) d (Å) 4.95 3.918 2.141 2.95 3.087 4.878 I/I₀ 100 90.1 81.5 77 77 63.3
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9012836; idealized occupancies, no preferred orientation.
Physical properties Density (calculated) 3.601 g/cm³calculated from COD 9012836 Streak yellowsingle source Wikidata (CC0)
Chemistry (calculated) Molecular weight 395.88 g/molcalculated from the IMA formula Composition (wt%) As 75.7%, S 24.3%
Classification Nickel-Strunz (10th) 2.FA.10Wikidata (CC0) Nickel-Strunz (9th) 2.FA.10Wikidata (CC0) Dana (8th) 2.6.1.1Wikidata (CC0)
