Goldstone

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Goldstone is glass that contains myriad of tiny angular crystals of copper. First made in Italy, goldstone forms by reduction of particles of copper oxide within the glass during a process called annealing. Nothing in nature looks quite like glittering goldstone. Made in three distinct colors (blue, green and orange), goldstone is a tough and durable material that can be made in large pieces and fashioned into slices and objects of almost any desired size and configuration.

Goldstone Polished
Goldstone Classification
Common Name Goldstone
Species Glass
Goldstone Optical Properties
Transparency Transparent - Opaque
Refractive Index 1.470-1.700
Tolerance:can go OTL
Optic Character NA
Optic Sign NA
Polariscope Reaction Singly Refractive (SR) With ADR
Fluorescence SWUV: Variable
LWUV: Variable
Pleochroism None
Goldstone Characteristic Physical Properties
Hardness 5-6
Specific Gravity 2.300-4.500
Toughness Poor
Inclusions The adventurescence in goldstone glass is produced by numerous brownish triangular or hexagonal copper platelets. Glass stones often have gas bubbles, flow lines and they might show cavities on the surface.
Luster Vitreous
Fracture Conchoidal, Granular, Uneven
Cleavage None
Goldstone Chemistry & Crystallography
Chemical Name silica
Crystal System NA

Goldstone Colors

  • Brown Goldstone Brown
  • Blue Goldstone Blue
  • Orange Goldstone Orange

Countries of Origin

Unknown; China; Italy

History

Once again, mankind creates a gemstone that Mother Nature didn't dream of making. Goldstone. First made in Italy, goldstone is glass that contains a myriad of tiny, angular, copper crystals. It forms by the reduction of particles of copper oxide within the glass during a process called annealing. Glittering goldstone is found in blue, green, and orange. It's a tough and durable material that is made in large pieces and fashioned into slices and objects of almost any desired size and configuration. Beads, baubles, and faceted gems - goldstone can do it all.

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Tim Matthews

Author

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.