gemstone

Goldstone beads (likely brown goldstone)

Man-made copper-bearing glass; not a natural mineral. Often sold as “aventurine glass.”

AI-generated identification · may be incorrect

Opaque reddish-brown beads with abundant glittering copper-colored particles and a vitreous luster; glass hardness is about 5–6 Mohs. The material is amorphous, with no cleavage or natural crystal structure.

Identified October 9, 2026More gemstone →

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Physical properties

Formation & geological history

Made by heating silica-rich glass with copper compounds, then cooling it so tiny metallic copper crystals form within the glass. It is a manufactured material, not a naturally formed geological specimen.

Uses & applications

Commonly used for beads, jewelry, ornaments, and decorative objects.

Geological facts

Despite its name, goldstone is neither gold nor a natural stone; its sparkle comes from embedded copper crystals.

Field identification & locations

Identify it by its uniform reddish-brown color and evenly distributed glitter; natural sunstone usually shows different feldspar-based aventurescence and crystal properties. Goldstone is produced commercially, notably in Italy and China.