Mineral Factbook

Stibarsen

SbAsIMA symbol: Sbrapproved

Stibarsen is a native element or alloy mineral with the formula SbAs, crystallizing in the trigonal system. It has a calculated density of 6.443 g/cm3.

Photos

Stibarsen specimen photo
Dan Holtstam, Luca Bindi, Hans-Jürgen Förster, Andreas Karlsson and Kjell Gatedal · CC BY-SA 4.0 · Commons
Stibarsen specimen photo
Materialscientist · CC BY-SA 3.0 · Commons
Stibarsen specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons
Stibarsen specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemtrigonal crystal systemWikidata (CC0)
Space groupR -3 m :H
Cell (Å, °)a = 4.0255, b = 4.0255, c = 10.837; α = 90, β = 90, γ = 120
Cell volume152.083 ų, Z = 3
Axial ratios1.0000:1:2.6921calculated from COD 9001315
Source structureCOD 9001315 (American Mineralogist, 1991) — 1 of 3 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.9322.1392.0131.6591.3441.28
I/I₀10040.633.718.117.715.1

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9001315; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)6.443 g/cm³calculated from COD 9001315

Chemistry (calculated)

Molecular weight196.68 g/molcalculated from the IMA formula
Composition (wt%)Sb 61.91%, As 38.09%

Classification

Nickel-Strunz (10th)1.CA.05Wikidata (CC0)
Nickel-Strunz (9th)1.CA.05Wikidata (CC0)