| Name: | Groutite Gro |
| IMA Chemistry: | Mn3+O(OH) |
| Chemistry Elements: | The mineral Groutite contains elements: Manganese (Mn) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | USA |
| Year First Published: | 1945 |
| IMA Status: | Approved,Grandfathered |
| Status Notes: | Gruner J W (1947) Groutite, HMnO_2_, a new mineral of the diaspore-goethite group, American Mineralogist 32, 654-659 |
| Structural Group Name: | Diaspore |
| Fleischer's Group Name: | diaspore |
| Crystal Systems: | orthorhombic |
| Oldest Known Age: | 2400 Million Years Ago |
| Mohs Hardness: | 3.75 |
| Diaphaneity: | 1.0 |
| Specific Gravity: | 4.144 |
| More Info: | Search Wikipedia: Groutite (Wiki) Search Mindat: Groutite Search Web Mineral DB: Groutite |