Sunstone is a feldspar mineral known for its distinctive shimmering or glittery effect, called aventurescence, caused by light reflecting off tiny plate-like inclusions of hematite, goethite, or copper. It typically appears in shades of orange, red, gold, or brown, sometimes with a translucent to transparent quality. Sunstone has a Mohs hardness of 6 to 6.5, making it durable for jewelry but requiring some care to avoid scratches. It is found in Norway, the United States (Oregon), India, and Canada. Sunstone is often cut into cabochons or faceted stones to enhance its natural sparkle.