Améthyste, quartz Chrysocolle / Chrysocolla Pastel shades in shades of

Pastel shades in shades of gray

sometimes called "yellow beryl" or "golden beryl"

Tranche de quartz polycristallin provenant d'Uruguay

Shape: Round ''acorn"

The term "chrysoprase" is used to describe the apple green to darker green variety of chalcedony stained by nickel (Ni)

Améthyste, quartz Chrysocolle / Chrysocolla Pastel shades in shades ofAmethyst 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