1. plural of sunstone: a type of feldspar mineral that displays a golden or reddish shimmer due to tiny metallic inclusions
Usage: mineralogy
2. plural of sunstone: gemstones cut from this mineral, used in jewelry

Examples

• The museum’s mineral collection featured several beautiful sunstones from Oregon.
• She wore earrings made from polished sunstones that caught the light beautifully.
• The jeweler explained that sunstones get their shimmer from copper inclusions.
• Oregon sunstones are particularly prized for their clarity and color.
• The necklace was strung with alternating sunstones and pearls.
• Collectors often seek sunstones with the most pronounced schiller effect.