Blue Zircon Gemstone Information Information * Loose gemstones * Jewelry links Zircon is a birthstone for the month of December. The word zircon was first used to describe crystals from Sri Lanka and came to us either through French or Persian. This gemstone is known to help one to be more at peace with oneself, and to bring out the love and admiration in all people. It was once believed that zircon provided the wearer with wisdom, honor, and riches. View examples of cut blue zircon below and prices in our store section.   ENHANCEMENT CODE H Click to view AGTA code. PROPERTIES Refractive Index 1.925-1.984 Hardness = 6-7.5 (Moh's Scale) Specific Gravity = 3.90-4.73 Species - Zircon. Optic Character - Double Refraction. Phenomena - Chatoyancy, (rare). WARNINGS FOR CARE Ultrasonic: Risky. Steamer: Risky. Heat: Poor; color change may occur with heat Chemicals that harm: none   Crystal Structure Crystal system: Tetragon: short four side prisms, pyramidal ends. MAJOR SOURCES Kampuchea, Sri Lanka, Myanmar, Australia, Thailand, China Birthstones  January  Garnet February Amethyst March Aquamarine April Diamond May Emerald June Pearl/Alexandrite July Ruby August Peridot September Sapphire October Opal/Tourmaline November Topaz or Citrine December Blue Topaz or Zircon Round cut.   Marquise cut. Emerald cut. Pear shape. Oval shape.

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