Pargasite mostly occurs in a brown color, but has been found in greenish-brown to dark green and black. This gemstone was first found in Finland in 1814 and is named for its site of discovery. A member of the amphibole group, pargasite is closely related to hornblende. Some fine specimens of this rare gemstone have been faceted.
- Optical Properties
- Characteristic Physical Properties
- Chemistry & Crystallography
Transparent - Translucent
Strength: Weak Fire
Aggregate (AGG), Doubly Refractive (DR)
SWUV: Inert to weak green
Trichroic, (in brown gems) moderate to strong colorless, yellow, and brown; (in green gems) moderate to strong greenish yellow, green, and greenish blue
Grayish or brownish green
Perfect, in one direction
Countries of Origin
Tanzania, United Republic Of; Viet Nam; Sri Lanka; United States of America; United Kingdom of Great Britain and Northern Ireland; Canada; Sweden; Pakistan; Unknown; China; Australia; Chile; Ethiopia
Normal care, requires gentle handling.