Species / Silicates / #0117
Allophane
Silicates amorphous solid #0117
Allophane is a mineral species described as phyllosilicate mineral. It is classified under the Nickel-Strunz scheme and its reference data is listed below.
| Formula | Al₂O₃(SiO₂)₁.₃-₂.₀·2.5-3.0H₂O |
| Strunz code | 9.ED.20 |
| Class | Silicates |
| Crystal system | amorphous solid |
| Type locality | — |
| Named after | other |
| Streak | white |
Composition
O
53.31%
Al
28.1%
Si
17.55%
H
1.05%
Molar mass 192.076 g/mol
Physical
Mohs
Density
g/cm³