Ruby and Sapphire 4mm Round Faceted A Grade Banded - 15-16 Inch Calligraphy Stone The two most popular classes

The two most popular classes of Australian Opal are Black Opal mined in Lightning Ridge and Fire Opal

a silicate of calcium and magnesium -- from western Canada

Tiger Eye has been revered and feared throughout history as an

Cat’s Eye is a quartz stone that appears in a range of colors including white

but a combination of minerals

Ruby and Sapphire 4mm Round Faceted A Grade Banded - 15-16 Inch Calligraphy Stone The two most popular classesRuby has long been considered one of the most beautiful and valuable gemstones on the planet. It is also one of the hardest, second only to Diamond. At times in ancient history, Ruby was valued more highly than any other gem, including Diamond. Its believed that Kublai Khan once offered an entire city in trade for a sizable Ruby.