Chrysocolla

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Chrysocolla, derived from the Greek chyrysos meaning "gold," is a copper mineral. Crystals are very rarely seen, but it is frequently intergrown with other minerals such as quartz or opal. This results in a harder, more resilient gemstone, as pure chrysocolla is soft and fragile. Its copper content is responsible for chrysocolla's range of bright green to blue hues.

Chrysocolla Polished
Chrysocolla Classification
Common Name Chrysocolla
Species Chrysocolla
Chrysocolla Optical Properties
Transparency Translucent - Opaque
Dispersion Strength: None
Refractive Index 1.460-1.570
Birefringence 0.023-0.04
Optic Character Biaxial
Optic Sign Negative
Polariscope Reaction Aggregate (AGG), Doubly Refractive (DR)
Fluorescence SWUV: Inert
LWUV: Inert
Pleochroism Unobservable
Chrysocolla Characteristic Physical Properties
Hardness 2-4
Streak Green-White
Specific Gravity 2.000-2.400
Toughness Poor
Inclusions Chrysocolla often shows botryoidal growth structure and it often intergrown with chalcedony, malachite and turquoise.
Luster Vitreous, Waxy
Stability Poor
Fracture Conchoidal
Cleavage None
Chrysocolla Chemistry & Crystallography
Chemical Name hydrated copper silicate
Chemical Formula (Cu,Al)2H2Si2O5(OH)4.nH2O
Crystal System Monoclinic
Chemistry Classification Silicate

Chrysocolla Colors

  • Green Chrysocolla Green

Alternate Names

Chrysocolla Quartz, Cuprian Chalcedony, Gem Silica

Countries of Origin

United States of America (the); Unknown; Sri Lanka; China; Poland; Mexico; Madagascar; Israel; Australia; Peru; India

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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.