Goldstone Gem Guide and Properties Chart

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.

General Information

Classification
Optical Properties
Characteristic Physical Properties
Chemistry & Crystallography

Common Name

Goldstone

Species

Glass

Transparency

Transparent - Opaque

Refractive Index

1.470-1.700
Tolerance:can go OTL

Optic Character

Optic Sign

Polariscope Reaction

Singly Refractive (SR) With ADR

Fluorescence

SWUV: Variable
LWUV: Variable

Pleochroism

None

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

Chemical Name

silica

Crystal System

Goldstone Colors

Green
Blue
Orange
Brown

Alternate Names

Aventurine

Countries of Origin

Unknown; China; Italy

History

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.

Care

Normal care