Böhmite
AlO(OH)IMA symbol: Bhmgrandfathered
Böhmite is an oxide or hydroxide mineral with the formula AlO(OH). It has a calculated density of 3.031 g/cm3. Its streak is white.
Photos
Crystallography
| Space group | C m c m |
|---|---|
| Cell (Å, °) | a = 2.8656, b = 12.226, c = 3.6886; α = 90, β = 90, γ = 90 |
| Cell volume | 129.229 ų, Z = 4 |
| Axial ratios | 0.2344:1:0.3017calculated from COD 9012273 |
| Source structure | COD 9012273 (Journal of Solid State Chemistry, 2002) — 1 of 7 structures |
Physical properties
| Density (calculated) | 3.031 g/cm³calculated from COD 9012273 |
|---|---|
| Streak | whitesingle sourceWikidata (CC0) |
Chemistry (calculated)
| Molecular weight | 59.99 g/molcalculated from the IMA formula |
|---|---|
| Composition (wt%) | Al 44.98%, O 53.34%, H 1.68% |
Classification
| Nickel-Strunz (10th) | 4.FE.15Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 4.FE.15Wikidata (CC0) |