Bazzite
Be3(Sc,Fe3+,Mg)2Si6O18·Na0.32·nH2OIMA symbol: Bzgrandfathered
Bazzite is a silicate mineral with the formula Be3(Sc,Fe3+,Mg)2Si6O18·Na0.32·nH2O, crystallizing in the hexagonal system. It has a Mohs hardness of 6.5, typically blue in color, with a vitreous luster, a specific gravity of 2.8.
Photos
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Crystallography
| Crystal system | hexagonal crystal systemWikidata (CC0) |
|---|---|
| Space group | P 6/m c c |
| Cell (Å, °) | a = 9.549, b = 9.549, c = 9.163; α = 90, β = 90, γ = 120 |
| Cell volume | 723.576 ų, Z = 2 |
| Axial ratios | 1.0000:1:0.9596calculated from COD 9004606 |
| Source structure | COD 9004606 (The Canadian Mineralogist, 2000) — 1 of 2 structures |
Powder X-ray diffraction (calculated)
| d (Å) | 3.306 | 2.958 | 8.27 | 4.008 | 1.762 | 1.805 |
|---|---|---|---|---|---|---|
| I/I₀ | 100 | 62.5 | 36.1 | 22.5 | 17.1 | 16.5 |
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9004606; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 2.83 g/cm³calculated from COD 9004606 |
|---|---|
| Hardness (Mohs) | 6.5single sourceDana's System, 3rd Appendix (1915) |
| Specific gravity | 2.8 g/cm3corroboratedDana's System, 3rd Appendix (1915) |
| Color | bluesingle sourceDana's System, 3rd Appendix (1915) |
| Luster | vitreoussingle sourceDana's System, 3rd Appendix (1915) |
Classification
| Nickel-Strunz (10th) | 9.CJ.05Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 9.CJ.05Wikidata (CC0) |
| Dana (8th) | 61.1.1.2Wikidata (CC0) |