Mineral Factbook

Samsonite

Ag4MnSb2S6IMA symbol: Ssngrandfathered

Samsonite is a sulfide or sulfosalt mineral with the formula Ag4MnSb2S6, crystallizing in the monoclinic system. It has a Mohs hardness of 3-4, typically black or gray in color, with a metallic luster, a specific gravity of 4.4. Its streak is brown or red.

Photos

Samsonite specimen photo
Dick Thomas Johnson from Tokyo, Japan · CC BY 2.0 · Commons
Samsonite specimen photo
Strubbl · CC BY-SA 4.0 · Commons
Samsonite specimen photo
L-BBE · CC BY 3.0 · Commons
Samsonite specimen photo
Ziko van Dijk · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemmonoclinic crystal systemWikidata (CC0)
Space groupP 1 21/n 1
Cell (Å, °)a = 10.3861, b = 8.1108, c = 6.663; α = 90, β = 92.639, γ = 90
Cell volume560.693 ų, Z = 2
Axial ratios1.2805:1:0.8215calculated from COD 9010236
Source structureCOD 9010236 (American Mineralogist, 2007) — 1 of 7 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)3.1952.9873.0132.8622.4453.181
I/I₀10089.576.463.557.840.5

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9010236; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)5.463 g/cm³calculated from COD 9010236
Hardness (Mohs)
3-4single sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)
Specific gravity
4.4 g/cm3single sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)
Color
black, graysingle sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)
Streak
brown, redsingle sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)
Luster
metallicsingle sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922)

Chemistry (calculated)

Molecular weight922.32 g/molcalculated from the IMA formula
Composition (wt%)Ag 46.78%, Mn 5.96%, Sb 26.4%, S 20.86%

Classification

Nickel-Strunz (10th)2.GA.15Wikidata (CC0)
Nickel-Strunz (9th)2.GA.15Wikidata (CC0)