Citrine: si-'trEn - A semi-precious yellow stone resembling topaz, formed by heating a black quartz in order to change its color.
Color: yellow, golden yellow to lemon yellow
Mined: principal sources are Brazil and Madagascar
Moh's Hardness: 7
Birthstone: November (modern birthstone), November (traditional birthstone)

Citrine is a beautiful yellow stone which has enhanced jewelry pieces since the mid 1700's. Citrine is a popular, but less expensive, alternative to the topaz as a November birthstone.

Source: http://www.yahoo.com


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