![]() Aventurine quartz has a unique occurrence, hardness, luster, conchoidal fracture, refractive index and specific gravity. Aventurine quartz is sometimes confused with aventurine feldspar, but feldspar occurs orange to red and has a higher level of transparency, which makes it easily distinguishable.Īventurine feldspar is now commonly referred to as ' sunstone', leaving the name 'aventurine' to refer primarily to the quartz variety. Aventurine has a grainy texture in its rough state, but displays an attractive, soft and dull vitreous luster when polished. In fact, most aventurine quartz appears banded and exhibits noticeable lighter and darker color zones. The body color of aventurine also varies depending on inclusions. The level of intensity depends on the density and size of metallic inclusions. Aventurine's unique optical phenomenon of 'aventurescence' ranges in intensity from weak to intense. Despite this technicality, aventurine is still classified as quartz by most, who consider fuchsite to be only an inclusion within the quartz.Īventurine can typically be distinguished and identified by color and the presence of 'aventurescence'. Aventurine is often so heavily included with fuchsite, that it is technically defined as a rock and not a mineral. Fuchsite is a chromium-rich variety of muscovite. Aventurine's color is caused by trace elements of fuchsite in otherwise colorless quartz. ![]() The remarkable optical effect is owed to traces of muscovite mica, and often hematite or goethite.Īventurine typically ranges from light- to dark-green in color. The metallic inclusions give aventurine quartz a unique sparkling iridescent effect, known as 'aventurescence'. ![]() Glittery inclusions are typically composed of muscovite mica, which usually results in medium to dark green aventurine stones with a silvery green or blue sheen. About Aventurine - History and IntroductionĪventurine is a gemstone variety of quartz characterized by its translucency and sparkly metallic inclusions. ![]()
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