| Name: | Alleghanyite Alh |
| IMA Chemistry: | Mn2+5(SiO4)2(OH)2 |
| Chemistry Elements: | The mineral Alleghanyite contains elements: Manganese (Mn) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | USA |
| Year First Published: | 1932 |
| IMA Status: | Approved,Grandfathered |
| Status Notes: | Ross C S, Kerr P F (1932) The manganese minerals of a vein near Bald Knob, North Carolina, American Mineralogist 17, 1-15 |
| Structural Group Name: | Humite |
| Fleischer's Group Name: | humite-reinhardbraunsite subgroup |
| Crystal Systems: | monoclinic |
| Oldest Known Age: | 1898 Million Years Ago |
| Mohs Hardness: | 5.5 |
| Diaphaneity: | 2.0 |
| Specific Gravity: | 4.055 |
| More Info: | Search Wikipedia: Alleghanyite (Wiki) Search Mindat: Alleghanyite Search Web Mineral DB: Alleghanyite |