Charoite

saf-ahyuh r

Charoite offers an intriguing, mystical array of patterns that are both eye-catching and mesmerizing. The patterns often exhibit a combination of swirls, veins and spots that give each piece a unique and magical appearance. The name Charoite is used to describe both a mineral and an attractive gem material primarily composed of charoite. The gem material comes from the remote, mountainous region of the Sakha Republic of Russia, which remains its only known source.

Charoite Polished
Charoite Classification
Common Name Charoite
Species Charoite
Charoite Optical Properties
Transparency Semitranslucent - Opaque
Refractive Index 1.550-1.559
Tolerance:(+0.002/-0.002)
Optic Character Biaxial
Optic Sign Positive
Polariscope Reaction Aggregate (AGG)
Fluorescence SWUV: Inert to patchy weak red
LWUV: Inert to patchy weak red
Pleochroism Unobservable
Charoite Characteristic Physical Properties
Hardness 5-6
Streak White
Specific Gravity 2.540-2.780 Typical:2.680
Toughness Fair
Inclusions Charoite has a fibrous or flame-like appearance with swirls and spots of black, gray, white or brownish orange.
Luster Vitreous, Waxy
Fracture Splintery, Granular
Cleavage Good, in three directions
Charoite Chemistry & Crystallography
Chemical Name hydrated potassium calcium sodium hydroxide fluoride
Chemical Formula (K,Na)5(Ca,Ba,Sr)8(Si6O15)2Si4O9(OH,F).11H2O
Crystal System Monoclinic
Chemistry Classification Rock

Charoite Colors

  • Purple Charoite Purple

Countries of Origin

China; Russian Federation (the); Zambia

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Tim Matthews

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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.