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Edenite Classification
Common Name Edenite
Species Amphibole
Edenite Optical Properties
Transparency Opaque-Translucent
Dispersion Strength: Weak Fire
Refractive Index 1.606-1.672
Birefringence 0.025
Optic Character Biaxial
Optic Sign Positive
Polariscope Reaction Aggregate (AGG)
Edenite Characteristic Physical Properties
Streak White
Toughness Poor
Luster Vitreous
Stability Brittle
Fracture Uneven
Cleavage Perfect
Edenite Chemistry & Crystallography
Chemical Name Sodium Calcium Magnesium Silicate
Chemical Formula NaCa2Mg5Si7O22(OH)2
Crystal System Monoclinic
Chemistry Classification Silicate

Edenite Colors

  • Yellow Edenite Yellow
  • White Edenite White
  • Green Edenite Green
  • Gray Edenite Gray
  • Brown Edenite Brown
  • Black Edenite Black

Countries of Origin

Sweden; United States of America (the); Viet Nam; Korea (the Republic of); Sri Lanka; Slovakia; Slovenia; Switzerland; Spain; United Kingdom of Great Britain and Northern Ireland (the)

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Sisk Gemology Reference

Showcasing 200 gemstones in over 1,000 pages and accompanied by more than 2,000 photos, The Sisk Gemology Reference is a must-have in every collector’s library. Each comprehensive, three-volume set features state-of-the-art photography, detailed illustrations, and scientifically precise descriptions to create an entrancing experience for gemstone amateurs and afficionados alike.

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Tim Matthews


Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.