| Name: | Steedeite Sed |
| IMA Chemistry: | NaMn2[Si3BO9](OH)2 |
| Chemistry Elements: | The mineral Steedeite contains elements: Sodium (Na) Manganese (Mn) Silicon (Si) Boron (B) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Canada |
| Year First Published: | 2013 |
| IMA Status: | Approved |
| Status Notes: | Haring M M M, McDonald A M (2014) Steedeite, NaMn_2_[Si_3_BO_9_](OH)_2_: characterization, crystal-structure determination, and origin. The Canadian Mineralogist 52, 47-60 |
| Structural Group Name: | Not in a structural group |
| Fleischer's Group Name: | |
| Crystal Systems: | triclinic |
| Oldest Known Age: | 124 Million Years Ago |
| More Info: | Search Wikipedia: Steedeite (Wiki) Search Mindat: Steedeite Search Web Mineral DB: Steedeite |