Améthyste, quartz - Lot de 4 Maw sit sit Shape: Freeforme cabochon

Shape: Freeforme cabochon

Traitement: Irradiation

Couleur : Sky blue

Traitement : Aucun

Shape: Oval Cabochon

Améthyste, quartz - Lot de 4 Maw sit sit Shape: Freeforme cabochonAmethyst is the purple variety of crystalline quartz. Its dark purple to light purple color is due to the presence of iron (Fe). This is the birthstone for the month of February. This fine stone (sometimes referred to as semi precious) is undoubtedly the most popular quartz. Amethyst, which once competed with the finest gemstones, became affordable in the early 19th century when significant deposits were discovered in Brazil. Variety: Quartz Purple