Ruby and Sapphire Natural 9-10mm Round - 15-16 Inch 13x20-20x28mm Blue Chalcedony is reputed to

Blue Chalcedony is reputed to help with communication

or during meditation

currently believed to be due to the presence of a copper-based mineral such as Malachite or Azurite

This dye was said to create Michelangelo’s favorite shade of blue

Ruby and Sapphire Natural 9-10mm Round - 15-16 Inch 13x20-20x28mm Blue Chalcedony is reputed toRuby 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.