Species / Sulfates / #0174
Ammonioalunite
Sulfates trigonal #0174
Ammonioalunite is a mineral species described as alunite supergroup, sulfate mineral. It is classified under the Nickel-Strunz scheme and its reference data is listed below.
| Formula | (NH)₄Al₃(SO₄)₂(OH)₆ |
| Strunz code | 7.BC.10 |
| Class | Sulfates |
| Crystal system | trigonal |
| Type locality | — |
| Named after | alunite |
| Streak | — |
Composition
O
51.47%
Al
18.6%
S
14.73%
N
12.88%
H
2.32%
Molar mass 435.16 g/mol
Physical
Mohs
Density
g/cm³