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Zandrite® is the brand name for a man-made stone that is highly photochromic. It is a chemically doped variety of glass, whose name is an allusion to alexandrite, an expensive naturally occurring color-change variety of chrysoberyl. Zandrite® is specially formulated by combining rare earth elements (like neodymium, lanthanum, and cerium) to create a stunning color change property. A scientist was the first to create, then realize the potential of this stunning gem (completely by accident).

Zandrite Polished
Zandrite Classification
Common Name Zandrite
Species Zandrite
Zandrite Optical Properties
Transparency Transparent
Refractive Index 1.680
Optic Character NA
Optic Sign NA
Polariscope Reaction Anomalous Double Refraction (ADR)
CCF Reaction None
Pleochroism None
Zandrite Characteristic Physical Properties
Hardness 5
Streak None
Specific Gravity 5
Toughness Poor
Inclusions Might display flow lines or gas bubbles
Luster Vitreous
Stability Fair
Fracture None
Cleavage Conchoidal
Zandrite Chemistry & Crystallography
Chemical Name Silica
Crystal System NA

Zandrite Colors

  • Pink Zandrite Pink
  • Blue Zandrite Blue
  • Green Zandrite Green
  • Purple Zandrite Purple

Alternate Names

Color Change Glass

Countries of Origin

United States of America (the); Unknown


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.