Sunstone Sources and Appearance
Sunstone is mainly found in India, the United States, Canada, Norway, China, and Russia. Oligoclase is clear for the most part and white in appearance, almost glass-like, but occasionally, when it is closer in form to a gemstone, it will have a slight bluish sheen. These oligoclase formations that range from translucent to pale blue in color can be found in North Carolina and Tanzania. Crystals that are found in weathered marble can be found in St. Lawrence County, New York. Sunstone is also found in Millard County, Utah. Some oligoclase contains hematite (iron oxide) inclusions, which cause sunstone to brilliantly reflect the sun's light.
When a sunstone is cut as a cabochon, a reddish, sparkling, sun-like appearance occurs. When it is found to be colorless and translucent in its natural form (such as the variety of oligoclase found in North Carolina), it is faceted as a gemstone. This can sometimes be confused with moonstone when it is white due to its luminescent glow. Oregon Sunstone is the only kind of sunstone which contains miniscule copper flecks, which cause the stones to range from clear to red and pink to even green - some stones even changing color in different light, like alexandrite.
A sunstone cabochon wrapped into a pendant by WS Faculty member Sherrie Lingerfelt.