| GLAUCONITE (species status controversial - see data) | (K,Na)(Fe+3,Al,Mg)2((Si,Al)4O10)(OH)2 |
| Locality: Hurricane Mtn., Conway, NH | |
| Specimen Size: 3.5 cm specimen of massive, amorphous, Glauconite | |
| Environment: Conway granite | |
| Field collected: Gordon Jackson | |