Frankdicksonite
BaF2IMA symbol: Fdsapproved
Frankdicksonite is a halide mineral with the formula BaF2, crystallizing in the cubic system. It has a Mohs hardness of 3, a calculated density of 4.886 g/cm3. Its streak is white.
Crystallography
| Crystal system | cubic crystal systemWikidata (CC0) |
|---|---|
| Space group | F m -3 m |
| Cell (Å, °) | a = 6.2001, b = 6.2001, c = 6.2001; α = 90, β = 90, γ = 90 |
| Cell volume | 238.34 ų, Z = 4 |
| Axial ratios | 1.0000:1:1.0000calculated from COD 9009004 |
| Source structure | COD 9009004 (Crystal Structures, 1963) |
Powder X-ray diffraction (calculated)
| d (Å) | 3.58 | 2.192 | 1.869 | 3.1 | 1.266 | 1.422 |
|---|---|---|---|---|---|---|
| I/I₀ | 100 | 64.9 | 47.7 | 24.5 | 20.1 | 19.6 |
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9009004; idealized occupancies, no preferred orientation.
Physical properties
| Density (calculated) | 4.886 g/cm³calculated from COD 9009004 |
|---|---|
| Hardness (Mohs) | 3single sourceWikidata (CC0) |
| Streak | whitesingle sourceWikidata (CC0) |
Chemistry (calculated)
| Molecular weight | 175.32 g/molcalculated from the IMA formula |
|---|---|
| Composition (wt%) | Ba 78.33%, F 21.67% |
Classification
| Nickel-Strunz (10th) | 3.AB.25Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 3.AB.25Wikidata (CC0) |