Name: | Pyrophyllite Prl |
Specimens in Collection: | |
IMA Chemistry: | Al2Si4O10(OH)2 |
Chemistry Elements: | The mineral Pyrophyllite contains elements: Aluminum (Al) Silicon (Si) Oxygen (O) Hydrogen (H) |
Country of Type Locality: | Russia |
Year First Published: | 1829 |
IMA Status: | Approved,Grandfathered |
Status Notes: | Hermann R (1829) Zerlegung des Pyrophyllits, eines neuen Minerals, Annalen der Physik und Chemie 15, 592-592 |
Structural Group Name: | Clay, Pyrophyllite |
Fleischer's Group Name: | talc |
Crystal Systems: | triclinic|monoclinic |
Oldest Known Age: | 3640 Million Years Ago |
Mohs Hardness: | 1.75 |
Diaphaneity: | 1.0 |
Specific Gravity: | 2.775 |
More Info: | Search Wikipedia: Pyrophyllite (Wiki) Search Mindat: Pyrophyllite Search Web Mineral DB: Pyrophyllite |