Mineral Factbook

Aguilarite

Ag4SeSIMA symbol: Agugrandfathered

Aguilarite is a sulfide or sulfosalt mineral with the formula Ag4SeS, crystallizing in the orthorhombic system. It has typically black in color, with a metallic luster, a specific gravity of 7.586.

Photos

Aguilarite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons
Aguilarite specimen photo
Terry Wallace · Public domain · Commons
Aguilarite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons
Aguilarite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemorthorhombic crystal systemWikidata (CC0)
Space groupP 1 21/n 1
Cell (Å, °)a = 4.2478, b = 6.9432, c = 8.0042; α = 90, β = 100.103, γ = 90
Cell volume232.41 ų, Z = 4
Axial ratios0.6118:1:1.1528calculated from COD 9017585
Source structureCOD 9017585 (Mineralogical Magazine, 2013)

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.4482.6212.4242.6052.8743.091
I/I₀10094.586.463.457.650.8

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9017585; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)7.984 g/cm³calculated from COD 9017585
Specific gravity
7.586 g/cm3single sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)
Color
blacksingle sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)
Luster
metallicsingle sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)

Chemistry (calculated)

Molecular weight542.5 g/molcalculated from the IMA formula
Composition (wt%)Ag 79.53%, Se 14.55%, S 5.91%

Classification

Nickel-Strunz (10th)2.BA.55Wikidata (CC0)
Nickel-Strunz (9th)2.BA.30bWikidata (CC0)