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What are sister gems-rubies and sapphires

What are sister gems-rubies and sapphires

Moyne 2021-04-12 16:38:35

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Ruby and sapphire are beautiful color and transparent corundum which two chemical components are aluminum oxide, is a colorless substance should be pure, containing traces of a multi-dye ion as a different color, such as red chromium - Ruby, Titanium and iron are blue-sapphire.

The red and blue jewels are transparent to translucent, with glass luster, and have obvious pleochroism under the dichroic mirror, with a hardness of 9 and a specific gravity of 4; shell-shaped fractures, no cleavage;

under ultraviolet light, rubies have obvious The red fluorescent; sapphires do not fluoresce except for a few species produced in Sri Lanka and Kashmir.

The main countries of the world output of ruby Myanmar, Sri Lanka and Thailand, the main national output sapphire are Australia, Thailand, Myanmar, Sri Lanka and China. Red Sapphire is often used as high-end jewelry such as ring face, female corsage, ear studs, tie clip and so on.

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