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January Birthstone

Topazolite is an Andradite Garnet that is yellow or brownish in color. It has a similar appearance to Topaz an the resemblance inspired its name.

Topazolite Polished
Topazolite Classification
Common Name Topazolite
Species Garnet
Topazolite Optical Properties
Transparency Opaque-Transparent
Dispersion Strength: Strong Fire Value: 0.057
Refractive Index Over The Limit 1.860-1.894
Optic Character NA
Optic Sign NA
Polariscope Reaction Anomalous Double Refraction (ADR), Singly Refractive (SR)
Fluorescence SWUV: Inert
LWUV: Inert
CCF Reaction None
Pleochroism None
Topazolite Characteristic Physical Properties
Hardness 6.5-7.5
Streak White or none
Toughness Poor
Inclusions Andradite garnet is a type II clarity stone. Due to low mohs hardness stones might show surface abrasions or scratches.
Luster Vitreous
Fracture Conchoidal, Uneven, Brittle
Cleavage None
Topazolite Chemistry & Crystallography
Chemical Name Calcium Iron Silicate
Chemical Formula Ca3Fe2(SiO4)3
Crystal System Cubic
Chemistry Classification Silicate

Topazolite Colors

  • Brown Topazolite Brown
  • Green Topazolite Green
  • Yellow Topazolite Yellow

Alternate Names

Andradite Garnet

Countries of Origin

Tanzania, United Republic Of; Iran (Islamic Republic of); United States of America (the); Madagascar; Switzerland; New Zealand; Austria; Mozambique; Korea (the Republic of); Russian Federation (the); Italy; Mexico; Antarctica; Slovakia; Germany


Normal Care

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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.