Chemical Formula: NaCa2Mg5(Si7Al)O22(OH)2
Locality: Edenville, Orange County, New York, USA.
Name Origin: Named for the locality.
Edenite is a double chain silicate mineral of the amphibole group with the general chemical composition NaCa2Mg5(Si7Al)O22(OH)2. Edenite is named for the locality of Edenville, Orange County, New York, where it was first described.
Physical Properties
Cleavage: {110} Perfect, {010} Distinct
Color: Bluish green, Colorless, Gray, White, Light green.
Density: 3 – 3.059, Average = 3.02
Diaphaneity: Transparent to translucent
Fracture: Brittle – Conchoidal – Very brittle fracture producing small, conchoidal fragments.
Habit: Tabular – Form dimensions are thin in one direction.
Hardness: 6 – Orthoclase
Luminescence: Fluorescent, Short UV=pale green-blue.
Luster: Vitreous (Glassy)
Streak: white
Photo
O22(OH)2 Locality: Edenville, Orange County, New York, USA. Name Origin: Named for the locality. Edenite is a double chain s){kind=link}