Sapphire

Birthstone: September
Family: Corundum (has the same chemical composition as ruby)
Colour: Pale to royal blue, dark blue, colourless, pink, peach, orange, yellow, green, purple
Hardness: 9 (as per Mohs hardness scale)
Sources: Australia, Burma, India, Sri Lanka, Thailand, United States
Interesting Facts: Sapphire is named after its colour – it means blue in Greek. The presence of iron and titanium gives it its colour. Three sapphires, each weighing about 2000 carats, were used to carve the heads of three famous American presidents; Washington, Lincoln, and Eisenhower.

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