Sunstone

Sunstone Crystals

Sunstone is a plagioclase feldspar — typically oligoclase or labradorite — distinguished by aventurescence: a glittery optical effect caused by reflective inclusions of copper or hematite platelets suspended within the crystal. When light hits these inclusions, the stone flashes with warm metallic sparkle. Sunstone registers 6–6.5 on the Mohs scale.

Indian sunstone is the most widely available variety, with a warm orange base and subtle copper shimmer. Oregon sunstone is rarer and highly collectible — its copper inclusions produce vivid red, green, and bicolor flashes unique among feldspars. Oregon sunstone is the official state gemstone of Oregon. Sunstone also comes from Norway (the original discovery locality), Tanzania, Canada, and Russia.

Available forms include tumbled stones, palm stones, spheres, pyramids, and towers. Sunstone belongs to the same mineral family as labradorite and moonstone. For other warm-toned stones, see our carnelian and citrine collections. Browse crystal jewelry for sunstone pieces. Free shipping on orders $150+.

Frequently Asked Questions

What is sunstone?

Sunstone is a feldspar mineral containing flat, reflective inclusions of copper or hematite that create aventurescence — a metallic glitter effect. It rates 6–6.5 on the Mohs scale and comes in orange, red, gold, and green varieties.

What is Oregon sunstone?

Oregon sunstone is a transparent labradorite feldspar with native copper inclusions. It achieves true transparency and vivid copper schiller in colors from clear to red, peach, pink, and green. Mined exclusively in southeastern Oregon, it is the official state gemstone.

Where does sunstone come from?

The most famous source is southeastern Oregon (copper-bearing transparent variety). India produces abundant oligoclase sunstone with hematite inclusions. Other sources include Norway (original discovery locality), Tanzania, Canada, and Russia.

What causes the sparkle in sunstone?

The sparkle (aventurescence) comes from light reflecting off flat, plate-like mineral inclusions — copper platelets in Oregon sunstone, hematite or goethite platelets in Indian sunstone. The reflective surfaces create a warm metallic glitter when the stone is tilted.

Is sunstone suitable for jewelry?

Yes. At Mohs 6–6.5, sunstone works well for most jewelry. Oregon sunstone is popular for faceted rings, pendants, and earrings. For everyday ring wear, a bezel setting is recommended. Clean with warm soapy water.