Améthyste, quartz - Paire Chrysoprase Forme et taille : Trillion

Forme et taille : Trillion

Forme et taille : Croix

ville d'Allemagne réputée pour la taille des pierres

Hardness: 4 Mohs

Améthyste, quartz - Paire Chrysoprase Forme et taille : TrillionAmethyst 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