Picture pending, ferrisicklerite from Varuträsk.
| Mineral class | Phosphates : Amblygonite pharmakosiderite group |
| Chemical formula | Li(Fe,Mn)PO4 |
| Crystal system | Orthorombic. |
| Habitus | Massive. |
| Cleavage | [100] good. |
| Hardness | 4 |
| Density | 3.41 - 3.53 |
| Color | Brown, from dark brown to yellowish brown. |
| Streak | Light brown. |
| Luster | Dull to silky. |
| Description | A secondary phosphate, formed by oxidation of other phosphates. |
| Occurance | In granitic pegmatites. |
| Associates | Triphylite |
| Notes |
Type locality : Sidi Bou Othmane, Jebilet, Morocco. First described by Quensel in 1937. Often with a brownish black tarnish that could be removed with weak hydrocloric acid. Forms a substitution serie with sicklerite. |
| Localities | A common phosphate.
|
| To phosphates index. |
Mineral group index. |
Main index. |
If you have some questions, suggestions or comments you are welcome to write me a line or two.