Boleite
KAg9Pb26Cu24Cl62(OH)48IMA symbol: Bolrenamed
Boleite is a halide mineral with the formula KAg9Pb26Cu24Cl62(OH)48, crystallizing in the cubic system. It has typically blue or green in color, with a pearly luster, a specific gravity of 5.054. Its streak is green.
Photos
Crystallography
| Crystal system | cubic crystal systemWikidata (CC0) |
|---|---|
| Space group | P m -3 m |
| Cell (Å, °) | a = 15.288, b = 15.288, c = 15.288; α = 90, β = 90, γ = 90 |
| Cell volume | 3573.16 ų, Z = 1 |
| Axial ratios | 1.0000:1:1.0000calculated from COD 9004592 |
| Source structure | COD 9004592 (The Canadian Mineralogist, 2000) — 1 of 2 structures |
Powder X-ray diffraction (calculated)
| d (Å) | 4.413 | 3.822 | 2.703 | 2.388 | 5.096 | 2.548 |
|---|---|---|---|---|---|---|
| I/I₀ | 100 | 75.5 | 66.3 | 46 | 38.5 | 38.4 |
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9004592; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 5.083 g/cm³calculated from COD 9004592 |
|---|---|
| Specific gravity | 5.054 g/cm3corroboratedDana's System, 2nd Appendix (1909) |
| Color | blue, greensingle sourceDana's System, 2nd Appendix (1909) |
| Streak | greenFord, Dana's Textbook of Mineralogy, 3rd ed. (1922) |
| Luster | pearlysingle sourceDana's System, 2nd Appendix (1909) |
Chemistry (calculated)
| Molecular weight | 10936.65 g/molcalculated from the IMA formula |
|---|---|
| Composition (wt%) | K 0.36%, Ag 8.88%, Pb 49.26%, Cu 13.94%, Cl 20.1%, O 7.02%, H 0.44% |
Classification
| Nickel-Strunz (10th) | 3.DB.15Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 3.DB.15Wikidata (CC0) |