| Name: | Hjalmarite Hja |
| IMA Chemistry: | Na(NaMn)Mg5Si8O22(OH)2 |
| Chemistry Elements: | The mineral Hjalmarite contains elements: Sodium (Na) Manganese (Mn) Magnesium (Mg) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Sweden |
| Year First Published: | 2017 |
| IMA Status: | Approved |
| Status Notes: | Holtstam D, Cámara F, Skogby H, Karlsson A (2019) Hjalmarite, a new Na–Mn member of the amphibole supergroup, from Mn skarn in the Lågban deposit, Värmland, Sweden. European Journal of Mineralogy 31, 565-574 |
| Structural Group Name: | Amphibole |
| Fleischer's Group Name: | |
| Crystal Systems: | monoclinic |
| Oldest Known Age: | 1898 Million Years Ago |
| More Info: | Search Wikipedia: Hjalmarite (Wiki) Search Mindat: Hjalmarite Search Web Mineral DB: Hjalmarite |