Lapis Lazuli Gemstone - Dashrath International Gemstone Learning Library
Hi Friends, Dashrath International gemstone learning library brings some of the very useful information about the natural gemstones. This information is based on our experience which we got after being for more than 20 years in the gemstones industry. Today we are talking about Lapiz Lazuli which is also famous as Lapis. It is a deep blue color opaque stone with some golden spot on it. The golden spots are from golden pyrite. If the pyrite content in the gemstone is less, it looks very good, but if the pyrite content is on the higher side in this gemstone, then it becomes very difficult to polish the stone as the Lapis is very soft. The hardness of the lapis is 5 to 5.5 whereas the hardness of the pyrite is very high. The special gravity of Lapis Lazuli is 2.4 to 2.5. Whenever Lapis Lazuli gets stored, it is stored in oil due to its softness. Some people also use wax for this purpose as well. The raw material of the lapis lazuli comes in big sizes only. It is ver...
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