ターコイズの販売標本

6件を販売中 · $60–$5,000 USD

ギャラリーに35件

ターコイズは、銅を含むアルミニウムリン酸塩の水和鉱物で、銅を含む岩石の二次変成によって形成されます。 typically presents a blue to green color, often described as sky-blue to teal, and occurs in compact masses, nodules, or botryoidal aggregates with a waxy to sub-vitreous luster. Classic samples exhibit a solid, opaque appearance with a smooth surface texture, sometimes displaying dark veining or matrix from host rock. The mineral commonly forms in arid or semi-arid environments where circulating copper-rich fluids precipitate turquoise in fractures and voids, particularly in oxidized zones of copper deposits.