Sapphire two classifications
The biggest feature of sapphire is that the color is uneven, and the flat ribbons and growth lines with different depths can be seen in parallel hexagonal cylinders. Polycrystalline twin crystal development, common blinds double crystal grain. The cracking is split along the double crystal plane. In addition to the above common features, sapphire in different regions of the world is also characterized by different origins. According to different geological genesis, it can be divided into two categories:
One category is sapphire produced in Myanmar, Sri Lanka and Kashmir, India.
The other category is sapphire from Australia, Thailand and China.
The sapphire of Myanmar and other real estates, due to the coloration of titanium, is bright blue, containing silky rutile and fingerprint-like liquid inclusions. The silky rutile inclusions can produce six or twelve starlights and are of high quality gemstones.
The sapphire produced in Australia, Thailand and China contains more iron and is colored by iron. Therefore, the color of the gemstone is very dark, and the reflection effect of the faceted gemstone is not very good. Generally, it needs to be heated and processed to be used.
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