from the AGTA website:
"Named from the French word for lemon, "citron" since citrine has a juicy lemon color. In ancient times, citrine was carried as a protection against snake venom and evil thoughts.
Sunny and affordable, citrine can brighten almost any jewelry style, blending especially well with the yellow gleam of polished gold.
It is the most affordable of all the earth-toned gemstones and is the alternate birthstone for November. Brazil and Zambia is the primary source of this gemstones.
Brownish varieties are commonly heated and magically turn into the bright yellow or orange colors known as citrine. This enhancement method is permanent and will last for the life of the gemstones."
Here is a link to the GIA's Buyer's Guide on Citrine's:
|a lemon yellow stone
|colors available||light yellow, pale yellow|
|properties:||RI=1.544 and 1.553 DR
suitable for use in jewelry
(see policy on Treatment Disclosure)
|important information||a natural quartz which is commonly treated by heat and or irradiation with heat|
|cuts:||calibrated up to 7mm
all standard cuts and free sizes
|rough:||generally available in clean material to cut sizes 6mm and under; bigger sizes occasionally available - please Contact Us for current stock|
|mining:||found in brazil and many other localities worldwide|