Sunstone is a type of gemstone that is known for its unique optical properties. However, there are numerous synonyms for the word sunstone, including Oligoclase, Aventurine feldspar, Heliolite, and Adularescent feldspar. These alternative names refer to stones that share similar characteristics with sunstone, such as their iridescence and sparkle. Some sunstones may also be referred to as "feldspar" or "labradorite," depending on their specific mineral composition and colouration. No matter what you choose to call it, sunstone is a beautiful and distinctive stone that is adored by gemstone enthusiasts and collectors around the world.