| Name: | Hardystonite Hdy |
| IMA Chemistry: | Ca2ZnSi2O7 |
| Chemistry Elements: | The mineral Hardystonite contains elements: Calcium (Ca) Zinc (Zn) Silicon (Si) Oxygen (O) |
| Country of Type Locality: | USA |
| Year First Published: | 1899 |
| IMA Status: | Approved,Grandfathered |
| Status Notes: | Wolff J E (1899) On hardystonite, a new calcium-zinc silicate from Franklin Furnace, New Jersey, Proceedings of the American Academy of Arts and Sciences 34, 479-481 |
| Structural Group Name: | Melilite |
| Fleischer's Group Name: | melilite |
| Crystal Systems: | tetragonal |
| Oldest Known Age: | 1349 Million Years Ago |
| Mohs Hardness: | 3.5 |
| Diaphaneity: | 2.0 |
| Specific Gravity: | 3.42 |
| More Info: | Search Wikipedia: Hardystonite (Wiki) Search Mindat: Hardystonite Search Web Mineral DB: Hardystonite |