| Name: | Macdonaldite Mcd |
| IMA Chemistry: | BaCa4Si16O36(OH)2·10H2O |
| Chemistry Elements: | The mineral Macdonaldite contains elements: Barium (Ba) Calcium (Ca) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | USA |
| Year First Published: | 1964 |
| IMA Status: | Approved |
| Status Notes: | Alfors J T, Stinson M C, Matthews R A, Pabst A (1965) Seven new barium minerals from eastern Fresno County, California, American Mineralogist 50, 314-340 |
| Structural Group Name: | Rhodesite |
| Fleischer's Group Name: | |
| Crystal Systems: | orthorhombic |
| Oldest Known Age: | 542 Million Years Ago |
| Mohs Hardness: | 3.75 |
| Diaphaneity: | 2.0 |
| Specific Gravity: | 2.27 |
| More Info: | Search Wikipedia: Macdonaldite (Wiki) Search Mindat: Macdonaldite Search Web Mineral DB: Macdonaldite |