Minerals "Aragonite"

20 €

Mexico, private collection from Netherlands.

Aragonite is a carbonate mineral, one of the three most common naturally occuring crystal forms of calcium carbonate. Aragonite is the mineral normally found in pearls. Aragonite is an important element in the shells and tests of many marine invertebrates. Most large Aragonite crystals are twinned growths of three individual crystals that form pseudohexagonal trillings. Although Aragonite crystallizes in the orthorhombic system, most prismatic crystals are hexagonally shaped due to the twinning. Trillings can be identified by their multi-directional basal striations from each individual member crystal. Colour are often white, yellow, orange, brown or transparent.

Beautiful collection (5pcs) of fine aragonite crystals. Beautiful colour and nice shape. Good condition. Age-related wear, fractures and minor cracks may appear. Dirt and dust may exist. Size varies from 0,9cm to 2,2cm. Total weight 24g. Sell as a set.