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Named in honor of its discoverer, Anastio Bustamente, bustamite is a member of the wollastonite group. Often similar to rhodonite in appearance, it is usually found as a massive transparent pink material that may be cut into cabochons or carved into figurines.

Bustamite Polished
Bustamite Classification
Common Name Bustamite
Species Bustamite
Bustamite Optical Properties
Transparency Transparent - Opaque
Dispersion Strength: Weak Fire
Refractive Index 1.662-1.707
Birefringence 0.014-0.015
Optic Character Biaxial
Optic Sign Negative
Polariscope Reaction Aggregate (AGG), Doubly Refractive (DR)
Fluorescence SWUV: Moderate violet red
LWUV: Strong red
Pleochroism Dichroic, unobservable to weak pinkish red and orange
Bustamite Characteristic Physical Properties
Hardness 5.5-6
Streak White
Specific Gravity 3.320-3.430
Toughness Poor
Luster Vitreous
Fracture Conchoidal
Cleavage Perfect, in one direction, Good, in two directions, Poor, in one direction
Bustamite Chemistry & Crystallography
Chemical Name manganese calcium silicate
Chemical Formula (Ca,Mn2+)3Si3O9
Crystal System Triclinic
Chemistry Classification Silicate

Bustamite Colors

  • Yellow Bustamite Yellow
  • Pink Bustamite Pink
  • Red Bustamite Red
  • Blue Bustamite Blue

Countries of Origin

South Africa

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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.