Potassic-magnesio-fluoro-arfvedsonite
KNa2(Mg4Fe3+)Si8O22F2IMA symbol: Pmfarfredefined
Potassic-magnesio-fluoro-arfvedsonite is a silicate mineral with the formula KNa2(Mg4Fe3+)Si8O22F2, crystallizing in the monoclinic system. It has a Mohs hardness of 6. Its streak is white.
Physical properties
| Hardness (Mohs) | 6single sourceWikidata (CC0) |
|---|---|
| Streak | whitesingle sourceWikidata (CC0) |
Classification
| Nickel-Strunz (10th) | 9.DE.25Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 9.DE.25Wikidata (CC0) |