gemstone

Sunstone Beads

Feldspar group (Oligoclase / Labradorite)

AI-generated identification · may be incorrect

Hardness of 6 to 6.5 on the Mohs scale, typically peach to golden-brown color with a characteristic spangled metallic shimmer (aventurescence) caused by microscopic inclusions of hematite or goethite, triclinic crystal system, vitreous luster.

Identified August 4, 2026More gemstone →

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Physical properties

Formation & geological history

Formed in igneous rocks such as basalts and granites, as well as metamorphic rocks, through the cooling and crystallization of magma where copper or hematite platelets exsolved during cooling.

Uses & applications

Used primarily in jewelry making, including beads, cabochons, necklaces, and rings, and collected by mineral enthusiasts.

Geological facts

Sunstone is the official state gemstone of Oregon, USA. The shimmering effect, known as aventurescence, makes high-grade specimens highly prized by lapidaries and jewelry designers.

Field identification & locations

Easily identified by its distinctive glittery reflection (aventurescence) when turned in the light, combined with a warm peach or brownish-orange body color. Commonly sourced from the US (Oregon), India, Norway, and Canada.