Sunstone
Sunstone is gem-quality feldspar with reflective metallic inclusions (usually hematite or copper) that produce a shimmering sparkle called “aventurescence” — the effect of sunlight glinting off the inclusions as the stone moves. Each piece looks like trapped fire.
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Everyday wear comfortably wants a 7+. Below 7, choose settings that protect the stone (bezel, halo) and store the piece carefully.
At Mohs 6.5, sunstone is below the comfortable daily-wear threshold. Save it for earrings, pendants, and special-occasion rings.
The two main markets
| Origin | Notes | |
|---|---|---|
| Oregon sunstone | Plush Valley, Oregon | Copper-bearing — produces red, pink, green, and bi-color stones plus the classic shimmer. The state gem of Oregon. Mined by small operations; reasonable ethical sourcing. |
| Indian sunstone | India (mostly) | Hematite-inclusion variety. Brown to orange body color with bright metallic flashes. The volume producer. |
| Norwegian sunstone | Norway | Historical source; rare today. Distinctive bronze sheen. |
| Tanzanian sunstone | Tanzania | Newer source; mid-tier quality. Affordable. |
Oregon copper-bearing sunstone is the connoisseur’s pick. The strongest color stones (deep red, “watermelon” pink-green, or vivid teal) command real prices and are sold as faceted gems rather than the cabbed-display style of Indian sunstone.
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Written by
Anna
Jeweler · Formi Jewelry
Anna works with Formi clients on stone selection, setting design, and fit — making sure every piece is right before it’s made.
Book a consultation with our in-house jewelersLast updated May 2026