- The name Quartz comes from german quarz. The name Citrine due lemon colour: Citrus. It´s a yellow variety from the quartz. The usuals colours are, light yellow, golden yellow, but can be orange, brown and red. The colour is due the iron. The naturals citrines are rares. It founds in hexagonal prism with piramids in the extremes.
- Localities in the peninsula ibérica: Villasbuenas y Vitigudino
(Salamanca), Montseny (Catalunya).
- Treatments: The natural citrine it´s scarce, like we told. Most of the citrine use to be treated. Some one comes from the amethyst, the wich one it´s heated in 470º and gives a light yellow colour; if it´s heated to 550º takes darkness yellows colours( if precipitates the the iron that it has, the citrine gives reds colours and will be a permanent colour). Also it could takes the yellow colour from the heated smoked quartz. The names that it use to take this treated citrine are variated and use to give confusion (Palmeira citrine, Madeira citrine...) other names are not corrects at all and do a mistake or trick: Spanish Topaz, Palmeira topaz, Bahia topaz etc. In general nobody use to inform when the citrine are treated; the commerce, consider normal to sale amethyst or smoked quartz back to the natural citrine quartz.
- Confusions: It can be confused with the yellow beril, scapolite, orthoclase, topaz, apatite, turmaline and others yellow stones.
- Our stones are naturals, without any treatment, from Villasbuenas, Salamanca: (classic spanish citrine deposit, the wich one was called Spanish topaz due its great beauty).
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