Quartz à inclusions d'oxyde de fer Oeuf / Egg La calcédoine est la variété

La calcédoine est la variété la plus importante des quartz polycristallins

Inclusions of iron oxide (Fe) and the presence of manganese (Mn) give rise to dendritic patterns reminiscent of branches or frost

Muonionalusta-type meteorites originate from a meteorite that struck northern Scandinavia

Origine : Brésil

This mineral owes its color to the mix of quartz

Quartz à inclusions d'oxyde de fer Oeuf / Egg La calcédoine est la variétéRock crystal is the colorless variety of crystalline quartz ; it does not contain any coloring element in impurity. However, it can present various inclusions giving it a multitude of fascinating appearances. In this case the presence of oxidized iron (Fe) gives rise to warm and vivid colors in shades of red, orange and yellow. The texture is reminiscent of drops of ink in contact with water. Variety: Quartz Color: Colorless and orange Dimensions: 27.