Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall. Alabaster, a fine-grained white or lightly tinted variety of gypsum, … See more The word gypsum is derived from the Greek word γύψος (gypsos), "plaster". Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this … See more Gypsum occurs in nature as flattened and often twinned crystals, and transparent, cleavable masses called selenite. Selenite contains no significant selenium; rather, both substances were named for the ancient Greek word for the Moon. Selenite may also … See more Commercial quantities of gypsum are found in the cities of Araripina and Grajaú in Brazil; in Pakistan, Jamaica, Iran (world's second largest producer), Thailand, Spain (the main producer … See more People can be exposed to gypsum in the workplace by breathing it in, skin contact, and eye contact. Calcium sulfate per se is nontoxic and is even approved as a food additive, but as … See more Gypsum is moderately water-soluble (~2.0–2.5 g/L at 25 °C) and, in contrast to most other salts, it exhibits retrograde solubility, becoming … See more Gypsum is a common mineral, with thick and extensive evaporite beds in association with sedimentary rocks. Deposits are known to occur in See more Synthetic gypsum is produced as a waste product or by-product in a range of industrial processes. Desulfurization See more

System of Registries US EPA

WebGypsum is a soluble salt, hydrous calcium sulphate CaSO 4. 2H 2 O. Its solubility is 2.6 g dm -3 of pure water at 25°C and a pressure 1 atmosphere. Segalen and Brion (1981) note that the solubility of gypsum is influenced by the presence of other salts in the solution. The maximum solubility occurs at 35-50°C. WebeBay item number: 354682719263 Item specifics About this product Product Information The tried-and-true Gypsum Construction Handbook is a systematic guide to selecting and using gypsum drywall, veneer plaster, tile backers, ceilings, and conventional plaster building materials. drago marković hsp

Abbreviations for names of rock-forming minerals

Webgypsum, common sulfate mineral of great commercial importance, composed of hydrated calcium sulfate (CaSO4·2H2O). In well-developed … WebAug 5, 2024 · Systematic (IUPAC) Name: copper (II) sulfate pentahydrate Common Names: copper (II) sulfate, copper (II) sulfate, cupric sulfate, cupric sulfate Vernacular Name: copper sulfate, copper sulfate Archaic Name: blue vitriol, bluestone, copper vitriol CAS Number: 7758-99-8 Webmineral name; subsequent letters are selected from the mineral name. (3) Most abbreviations consist of 2 or 3 letters, but a 4-letter abbreviation is used when the addition of F for ferro- or M for magnesio- resulted in ambiguity in the 3-letter version (e.g., Mcar for magnesiocarpholite). (4) Mineral abbreviations were selected so as not to corre- radio juzni vetar uzivo