Discoveries of glittery sunstone rough led miners to establish claims in the US state of Oregon. – Robert Weldon, courtesy Sunstone Butte Mine
A suite of gem-quality sunstones from the Ponderosa mine in the US state of Oregon shows the range of colors found in that area. – Tino Hammid
The 2.39-ct. aventurescent sunstone (right) is from the state of Tamil Nadu, in southern India. It’s accompanied by a cat’s-eye moonstone from the same area (left). – Shane F. McClure
Copper inclusions create a schiller effect in this Oregon sunstone from the Ponderosa Mine. – Eric Welch, courtesy Desert Sun Mining & Gem Co., Inc.
John Dyerの27.47カラットの多色オレゴン産サンストーンは芸術作品の１つである。 写真：David Dyer、宝石提供：John Dyer & Co.
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