Raspite
Pb(WO4)IMA symbol: Rspgrandfathered
Raspite is an oxide or hydroxide mineral with the formula Pb(WO4). It has a Mohs hardness of 2-5, typically brown or yellow in color, with an adamantine luster, a calculated density of 8.455 g/cm3. Its streak is white.
Photos
Crystallography
| Space group | P 1 21/a 1 |
|---|---|
| Cell (Å, °) | a = 13.555, b = 4.976, c = 5.561; α = 90, β = 107.63, γ = 90 |
| Cell volume | 357.471 ų, Z = 4 |
| Axial ratios | 2.7241:1:1.1176calculated from COD 9007617 |
| Source structure | COD 9007617 (Acta Crystallographica, Section B, 1977) |
Powder X-ray diffraction (calculated)
| d (Å) | 3.628 | 3.487 | 2.709 | 2.707 | 2.915 | 2.763 |
|---|---|---|---|---|---|---|
| I/I₀ | 100 | 38.7 | 35.5 | 34.4 | 29.6 | 29.3 |
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9007617; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 8.455 g/cm³calculated from COD 9007617 |
|---|---|
| Hardness (Mohs) | 2-5single sourceDana's System, 1st Appendix (1899) |
| Color | brown, yellowsingle sourceDana's System, 1st Appendix (1899) |
| Streak | whitesingle sourceFord, Dana's Textbook of Mineralogy, 3rd ed. (1922) |
| Luster | adamantinesingle sourceDana's System, 1st Appendix (1899) |
Chemistry (calculated)
| Molecular weight | 455.04 g/molcalculated from the IMA formula |
|---|---|
| Composition (wt%) | Pb 45.53%, W 40.4%, O 14.06% |
Classification
| Nickel-Strunz (10th) | 4.DG.20Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 4.DG.20Wikidata (CC0) |