Bromellite

BeOIMA symbol: Bmelgrandfathered

Bromellite is an oxide or hydroxide mineral with the formula BeO, crystallizing in the hexagonal system. It has a calculated density of 3.008 g/cm3. Its streak is white.

Photos

Bromellite specimen photo — Pavel M. Kartashov · CC BY-SA 3.0 · Commons

Crystallography

Crystal system	hexagonal crystal systemWikidata (CC0)
Space group	P 63 m c
Cell (Å, °)	a = 2.698, b = 2.698, c = 4.38; α = 90, β = 90, γ = 120
Cell volume	27.611 Å³, Z = 2
Axial ratios	1.0000:1:1.6234calculated from COD 9011659
Source structure	COD 9011659 (Physical Review B, 1993) — 1 of 18 structures

Powder X-ray diffraction (calculated)

d (Å)	2.062	2.337	2.19	1.349	1.238	1.149
I/I₀	100	83.2	54.4	38.4	35	23.4

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9011659; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)	3.008 g/cm³calculated from COD 9011659
Streak	whitesingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight	25.01 g/molcalculated from the IMA formula
Composition (wt%)	Be 36.03%, O 63.97%

Classification

Nickel-Strunz (10th)	4.AB.20Wikidata (CC0)
Nickel-Strunz (9th)	4.AB.20Wikidata (CC0)