Gypsum was known in Old English as spærstān, "spear stone", referring to its crystalline projections. Thus, the word spar in mineralogy, by comparison to gypsum, refers to any non- ore mineral or …

Dec 11, 2025 · Gypsum, common sulfate mineral of great commercial importance, composed of hydrated calcium sulfate. It occurs in extensive beds associated with other evaporite minerals, …

May 2, 2018 · Gypsum (CaSO₄·2H₂O) is a soft sulfate mineral forming in evaporite basins, caves and volcanic settings. Learn its formation, properties, varieties, global deposits and major industrial uses.

What is Gypsum? Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite.

Gypsum, a soft non-metallic mineral, almost exclusively forms in sedimentary settings, as seawater is evaporated or as dissolved ions precipitate from groundwater. Its mineral structure still contains …

Gypsum is a very common, soft sulfate mineral composed primarily of calcium sulfate dihydrate, with the chemical formula CaSO₄·2H₂O. Visually, it can be colorless or white, but impurities can also give it a …

Due to its inherent fire resistance, gypsum board, commonly known as drywall is the premier building material for wall, ceiling, and partition systems in residential, institutional, and commercial structures.

Mar 5, 2025 · Learn all about the different types of gypsum and what they look like. Discover their origins and their distinct uses and importance in different industries.

Gypsum is composed of calcium sulphate (CaSO4) and water (H2O). Its chemical name is calcium sulphate dihydrate (CaSO4.2H2O). Gypsum can be milled mixed with water and then resume its …

A not-for-profit trade association founded in 1930, promoting the use of gypsum while advancing the development, growth, and general welfare of the gypsum industry in the United States and Canada …