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 |