saf-ahyuh r

Triplite is named for its three cleavage planes that are oriented at right angles to each other. The structure of this stone, combined with its brittle nature, makes faceting very difficult. Successfully faceted triplite gems are coveted by collectors.

Triplite Polished
Triplite Classification
Common Name Triplite
Species Triplite
Triplite Optical Properties
Transparency Translucent - Opaque
Dispersion Strength: Strong Fire
Refractive Index 1.643-1.703
Birefringence 0.030
Optic Character Biaxial
Optic Sign Positive
Polariscope Reaction Aggregate (AGG), Doubly Refractive (DR)
Fluorescence SWUV: Inert
LWUV: Inert
Pleochroism Dichroic, moderate yellow brown and reddish brown
Triplite Characteristic Physical Properties
Hardness 5-5.5
Streak Brown To White
Specific Gravity 3.550-3.900
Toughness Poor
Luster Vitreous, Resinous
Fracture Uneven, Subconchoidal
Cleavage Good, in two directions, Poor, in one direction
Triplite Chemistry & Crystallography
Chemical Name manganese iron magnesium calcium phosphate flouride hydroxide
Chemical Formula (Mn2+, Fe2+, Mg,Ca)2(PO4)(F,OH)
Crystal System Monoclinic
Chemistry Classification Phosphate

Triplite Colors

  • Brown Triplite Brown
  • Orange Triplite Orange
  • Black Triplite Black

Countries of Origin

Pakistan; Uzbekistan

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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.