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Asterism in a Star Sapphire
Asterism is an optical phenomenon displayed by a very few gemstones such as star rubies, star sapphires, star garnets, star rose quartz, star diopside, star moonstone and star opal. Asterism is caused when fibrous inclusions align on all of the crystal axes. Such a stone, cut properly into a high domed cabochon, displays this magical effect.
The term "Asterism" came from the Greek word "aster", which means star, so asterism is commonly referred to as "star" or "star-effect". In simple words, asterism is a star-shaped light effect across the surface of gems.
At StarGemstones.com you can learn everything about different gems that display Asterism. If you are wish to possess one of these rarities, you can buy loose star gemstones or order rings, pendants, earrings and all kinds of jewelry mounted with these beauties at our online shop.
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