Citroen quartz belongs to the group. Color, which usually
goes from light yellow to dark yellow, makes her look like ethicals in topaz
yellow or yellow beryl. They are also found which hue is warmer and the color
tones of neighboring orange-red. It is mainly mined in Brazil as well as Madagascar
The natural citrons are rare. Most of them are of Helaine
quartz or amethyst irradiated and heated to over 500 degrees centigrade. The
natural and those resulting from irradiation have a low polychrome while those
from a heated amethyst do not. Their most common use is to be worn as jewelry.
Those of lesser quality are carved as decorative objects.
Chemical Composition: Silicon dioxide (SiO2).
Color: Yellow-orange to brownish yellow.
Hardness: 7.0
Specific gravity: 2.65
Refractive index: 1,54-1.55
Dispersion: 0.013
Polychrome: No low (yellow / light yellow).
Birthstone: Replaces some topaz stone as of November.
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