Anhydrite, or anhydrous calcium sulfate, is a mineral with the chemical formula CaSO 4. It is in the orthorhombic crystal system, with three directions of perfect cleavage parallel to the three …

硬石膏 是一种 硫酸盐 矿物，它的成分为 无水硫酸钙，与石膏的不同之处在于它不含 结晶水。 在潮湿的环境下硬石膏就会吸收水分变成石膏。 硬石膏是重要的 造岩矿物，就是说很多岩石中 …

2024年4月21日 · Anhydrite is a mineral that belongs to the sulfate mineral group. Its name is derived from the Greek words “an” (without) and “hydros” (water), indicating its lack of water …

Anhydrite is an evaporite mineral that occurs in extensive layered deposits in sedimentary basins where large volumes of sea water have been evaporated. It is typically interbedded with rocks …

硬石膏（anhydrite） 化学组成为Ca[SO4]、晶体属正交(斜方)晶系的硫酸盐矿物。晶体呈柱状或厚板状，集合体呈块状或纤维状产出。无色、白色，或因含杂质而呈浅灰色、浅蓝色或浅红色， …

硬石膏 （英語： Anhydrite），又称 无水石膏，是一种 硫酸盐矿物， 化学式 为CaSO 4。 它以 正交晶系 结晶，具有平行于三个对称平面的三个完美解理。 它与 重晶石 和 天青石 不同构。 明 …

Named in 1804 by Abraham Gottlob Werner from the Greek άνυδρος ("anhydros") meaning "without water", in allusion to the lack of water in its composition, in contrast to gypsum, which …

2020年1月14日 · 石膏（Gypsum）、硬石膏（Anhydrite）一、概述石膏、硬石膏这两种矿物主要是盐湖中化学沉积作用的产物，常与石盐、钾盐及光卤石共生。 两种石膏常伴生产出，又可 …

Anhydrite is used for the production of sulfuric acid and as a filler in paper. Good specimens of this mineral are rare and are desirable to collectors. European occurrences include Altaussee, …

anhydrite, an important rock-forming mineral, anhydrous calcium sulfate (CaSO 4). It differs chemically from gypsum (to which it alters in humid conditions) by having no water of …