"Citrine is a variety of quartz whose color ranges from pale yellow to brown due to a submicroscopic distribution of colloidal ferric hydroxide impurities. Natural citrines are rare; most commercial citrines are heat-treated amethysts or smoky quartzes. However, a heat-treated amethyst will have small lines in the crystal, as opposed to a natural citrine's cloudy or smoky appearance.
Citrine, like most other quartz, forms primarily magmatically in pegmatite with a granitic composition. However, natural citrines are quite rare and pale yellow with slight pleochroism. Most citrines on the market are orange-yellow, burnt amethysts.
Like most other varieties of quartz, citrine is processed into jewelry stones. However, since natural citrines are rare, artificial citrines made from burnt amethysts or recolored quartz are almost exclusively sold in stores."
So nearby I also found volcanic outcrops, which confirms what Wikipedia had to say. (magmatically formed)....
Now some photos from my gallery which i have posted 5 years ago, showing some examples of Citrine
I have got 3-4 hundred pics and it is very difficult to choose which ones are nicer.
Maybe some of the forum members have a Citrine on their jewelry.
Max
