In Greek the name Sapphire means blue.

Specific Gravity:  3.96 - 4.0
Hardness:  9.00

Both ruby and sapphire are the mineral corundum and color is the demarcation between the two. Ruby is always red, whereas sapphire may be in various shades of blue, pink, orange, yellow, green, purple, and even black and colorless.  In artificial light, sapphires can appear to be black-blue. The most desired color is cornflower-blue. 

Inclusions of rutile, termed silk, can create needle-like stars in the center of the stone if cut en cabochon.  This six rayed star is a highly valued kind of sapphire.

Peridot is thought by some to be associated with the zodiac sign, Taurus (April 21 May 21), and some believe if a Taurus wears saphhire, they will be protect from and cured of mental disorders (Matlins & Bonanno, 1998, p. 102). Anniversary 5 and 45 are celebrated with sapphire (Matlins & Bonanno, 1998, 104).

This information was primarily taken from

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This page was created December 6, 2000. copyright 2000 © Carmen Skaggs. All rights reserved.