Gwihabaite

(NH₄)(NO₃)IMA symbol: Gwiapproved

Gwihabaite is a carbonate or nitrate mineral with the formula (NH4)(NO3), crystallizing in the orthorhombic system. It has a calculated density of 1.707 g/cm3.

Crystallography

Crystal system	orthorhombic crystal systemWikidata (CC0)
Space group	P 42
Cell (Å, °)	a = 7.98, b = 7.98, c = 9.78; α = 90, β = 90, γ = 90
Cell volume	622.794 Å³, Z = 8
Axial ratios	1.0000:1:1.2256calculated from COD 9008080
Source structure	COD 9008080 (Zeitschrift fur Kristallographie, 1962)

Powder X-ray diffraction (calculated)

d (Å)	3.091	3.99	2.821	2.243	4.89	2.523
I/I₀	100	47.6	43.6	22.2	19.2	16.9

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9008080; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)	1.707 g/cm³calculated from COD 9008080

Chemistry (calculated)

Molecular weight	80.04 g/molcalculated from the IMA formula
Composition (wt%)	N 35%, H 5.04%, O 59.97%

Classification

Nickel-Strunz (10th)	5.NA.15Wikidata (CC0)
Nickel-Strunz (9th)	5.NA.15Wikidata (CC0)