| Name: | Eastonite Eas |
| IMA Chemistry: | KAlMg2(Si2Al2)O10(OH)2 |
| Chemistry Elements: | The mineral Eastonite contains elements: Potassium (K) Aluminum (Al) Magnesium (Mg) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | USA |
| Year First Published: | 1925 |
| IMA Status: | Approved,Redefined |
| Status Notes: | Winchell A N (1925) Studies in the mica group - Part 1, American Journal of Science 9, 309-327 Discredited: Livi K J T, Veblen D R (1987) “Eastonite” from Easton, Pennsylvania: A mixture of phlogopite and a new form of serpentine, American Mineralogist 72, 113-125 Redefined: Rieder M, Cavazzini G, D’Yakonov Y S, Frank-Kamenetskii V A, Gottardt G, Guggenheim S, Koval P V, Muller G, Neiva A M R, Radoslovich E W, Robert J L, Sassi F P, Takeda H, Weiss Z, Wones D R (1998) Nomenclature of the micas, The Canadian Mineralogist 36, 905-912 |
| Structural Group Name: | Mica |
| Fleischer's Group Name: | mica-true micas |
| Crystal Systems: | monoclinic |
| Oldest Known Age: | 2613 Million Years Ago |
| More Info: | Search Wikipedia: Eastonite (Wiki) Search Mindat: Eastonite Search Web Mineral DB: Eastonite |