Sample #156
- Catalognumber: 84351
- Species: Paragonite
- Modifier: euphyllite
- Mineralgroup: Mica
- Formula: Na Al2 (Al,Si3) O10 (OH)2
- Crystalsystem: monoclinic
- City: West Chester
- County: Chester
- Province: Pennsylvania
- Country: U.S.A.
- MinDBimages: 0