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Crocoite was once called “Red Lead Ore” due to its lead content. The name Crocoite comes from "crocon" the Greek word saffron. Specimens are bright yellow, orange, or dark red and typically form as long prismatic crystals. Some of the best examples come from Australia.

Crocoite Rough
Crocoite Classification
Common Name Crocoite
Species Crocoite
Crocoite Optical Properties
Transparency Opaque-Transparent
Dispersion Strength: Extreme Fire
Refractive Index Over The Limit 2.290-2.660
Birefringence 0.370
Optic Character Biaxial
Optic Sign Positive
Crocoite Characteristic Physical Properties
Hardness 2.5-3
Streak yellow-orange
Specific Gravity 5.900-6.100
Toughness Poor
Luster Adamantine, Waxy, Resinous, Vitreous
Fracture conchoidal
Cleavage distinct
Crocoite Chemistry & Crystallography
Chemical Name lead chromate
Chemical Formula PbCrO4
Crystal System Monoclinic
Chemistry Classification Sulfate

Crocoite Colors

  • Orange Crocoite Orange
  • Yellow Crocoite Yellow
  • Red Crocoite Red

Countries of Origin

Romania; United States of America (the); Canada; Austria; Mozambique; China; Namibia; Congo (the Democratic Republic of the); Russian Federation (the); Brazil; Poland; Italy; Mexico; South Africa; Zimbabwe; Philippines (the); Slovakia; Australia; Chile; France; Jordan; Germany; Tajikistan; United Kingdom of Great Britain and Northern Ireland (the)


Crocoite is very fragile please take care when handling.

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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.