Species / Phosphates / #0209
Andyrobertsite
Phosphates monoclinic #0209
Andyrobertsite is a mineral species described as arsenate mineral. It is classified under the Nickel-Strunz scheme and its reference data is listed below.
| Formula | KCdCu₅(AsO₄)₄[As(OH)₂O₂]·2H₂O |
| Strunz code | 8.DH.50 |
| Class | Phosphates |
| Crystal system | monoclinic |
| Type locality | Tsumeb Mine |
| Named after | Andrew C. Roberts |
| Streak | — |
Composition
Cu
29.66%
As
29.38%
O
26.59%
Cd
10.5%
K
3.65%
H
0.23%
Molar mass 1071.116 g/mol
Physical
Mohs
Density
4.011 g/cm³