Avogadrite
KBF4IMA symbol: Avggrandfathered
Avogadrite is a halide mineral with the formula KBF4, crystallizing in the orthorhombic system. It has a calculated density of 2.507 g/cm3.
Crystallography
| Crystal system | orthorhombic crystal systemWikidata (CC0) |
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| Space group | P n m a |
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| Cell (Å, °) | a = 8.6588, b = 5.48, c = 7.0299; α = 90, β = 90, γ = 90 |
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| Cell volume | 333.57 ų, Z = 4 |
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| Axial ratios | 1.5801:1:1.2828calculated from COD 9007508 |
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| Source structure | COD 9007508 (Acta Crystallographica, Section B, 1969) — 1 of 2 structures |
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Powder X-ray diffraction (calculated)
| d (Å) | 3.059 | 3.397 | 2.8 | 2.199 | 2.091 | 2.097 |
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| I/I₀ | 100 | 93.8 | 74.6 | 68.9 | 57.6 | 50 |
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xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9007508; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 2.507 g/cm³calculated from COD 9007508 |
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Chemistry (calculated)
| Molecular weight | 125.9 g/molcalculated from the IMA formula |
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| Composition (wt%) | K 31.05%, B 8.59%, F 60.36% |
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Classification
| Nickel-Strunz (10th) | 3.CA.10Wikidata (CC0) |
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| Nickel-Strunz (9th) | 3.CA.10Wikidata (CC0) |
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