Livingstonite
HgSb4S6(S2)IMA symbol: Lstgrandfathered
Livingstonite is a sulfide or sulfosalt mineral with the formula HgSb4S6(S2), crystallizing in the monoclinic system. It has a Mohs hardness of 2, typically gray in color, with a metallic luster, a specific gravity of 4.81. Its streak is red.
Photos
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Crystallography
| Crystal system | monoclinic crystal systemWikidata (CC0) |
|---|---|
| Space group | A 1 2/a 1 |
| Cell (Å, °) | a = 30.1543, b = 3.9953, c = 21.4262; α = 90, β = 104.265, γ = 90 |
| Cell volume | 2501.74 ų, Z = 8 |
| Axial ratios | 7.5474:1:5.3629calculated from COD 9017849 |
| Source structure | COD 9017849 (Crystallography Reports, 2010) — 1 of 3 structures |
Powder X-ray diffraction (calculated)
| d (Å) | 3.001 | 3.477 | 2.988 | 5.191 | 3.746 | 3.278 |
|---|---|---|---|---|---|---|
| I/I₀ | 100 | 47.2 | 43.9 | 37.9 | 31.1 | 28.9 |
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9017849; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 5.013 g/cm³calculated from COD 9017849 |
|---|---|
| Hardness (Mohs) | 2single sourceDana, System of Mineralogy, 6th ed. (1892) |
| Specific gravity | 4.81 g/cm3corroboratedDana, System of Mineralogy, 6th ed. (1892) |
| Color | graysingle sourceDana, System of Mineralogy, 6th ed. (1892) |
| Streak | redsingle sourceWikidata (CC0) redsingle sourceDana, System of Mineralogy, 6th ed. (1892) |
| Luster | metallicsingle sourceDana, System of Mineralogy, 6th ed. (1892) |
Chemistry (calculated)
| Molecular weight | 944.15 g/molcalculated from the IMA formula |
|---|---|
| Composition (wt%) | Hg 21.25%, Sb 51.59%, S 27.17% |
Classification
| Nickel-Strunz (10th) | 2.JA.05iWikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 2.HA.15Wikidata (CC0) |