Natural Blue Zircon - Dashrath International Gemstone Learning Library
Hi everyone, welcome again to the Dashrath International Gemstone Learning Library. Today, we are writing about Blue Zircon. Whenever anyone hears about Zircon, it seems like a synthetic stone or cubic zirconia. But it is not completely true. There are many stones which belong to zircon family and they are natural gemstones. These gemstones come in different colors like brown, red, orange, white, gray, purple, black and many more. Zircon belongs to nano silicate family. Its hardness is around 7 to 7.5 and the reflective index is 1.93 to 2.01. There is a big lustre in this stone. Due to its hardness index, it’s a very hard stone and very easy to cut as well. The special gravity of zircon is 3.73 to 4.73. Natural zircon comes from several regions of the world like Africa, Madagascar, Burma, Sri Lanka and some other places as well. Few of the brown zircon turns into blue zircon when you apply heat (of around 1200 deg. cel.) on them. It is a radio-active stone so when...