Sapphire and similar minerals can be correctly distinguished by their respective mineral crystal characteristics. The gem-quality blue cone mine has only one place in the United States, and the output is small. Although the color is similar to that of the sapphire, its hardness is small, and the Mohs hardness is only 6-6.5, so the hardness can be distinguished from the sapphire alone; the natural sapphire has double The refraction and the spinel are single refraction. If a red flash can appear in the blue gemstone, the blue gemstone can be judged as spinel or zoisite; the high hardness, high density and high refractive index of the sapphire can be Tourmaline, cordierite, and zoisite are distinguished.
What are the sapphire types?
What are the types of sapphire? The mineral name of sapphire is the corundum-like corundum mineral. In fact, the gem-grade corundum in the natural world is red, and the other colors such as blue, light blue, green, yellow, gray, colorless, etc. The sapphire sapphire is widely known as the sapphire sapphire. The sapphire can be divided into the following categories:
1. Chinese sapphire.
2. Heilongjiang Province sapphire.
3. Sapphire produced in Hainan Island and Fujian.
4, Jiangsu Province sapphire.
5. Indian Kashmir sapphire.
6, Myanmar Mogok sapphire.
7, Sri Lanka sapphire.
8, Thai sapphire.
9, Australian sapphire.
Sapphire species picture
Picture of sapphire type, sapphire is the main component of corundum gemstone in addition to red ruby ​​in corundum gemstone. The main component of corundum gemstone is alumina (Al2O3). The blue sapphire is due to the small amount of titanium (Ti) and iron (Fe) impurities. The color of the sapphire can be pink, yellow, green, white, or even in the same stone with multiple colors of sapphire in Thailand, Sri Lanka, Madagascar, Laos, Cambodia, Changle, Shandong, China, and the stalagmite mountain in Jiangjin, Hainan. It was found that the rarest of these origins belonged to the sapphire in Kashmir and Myanmar was the place where the finest sapphires were produced today.
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