mineral gypsum information
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Gypsum is a calcium sulphate mineral in non-metallic sulphates. It is widely used: 1 in building materials, such as cement retarder, gypsum products for construction and cementing materials; ; 2 as the soil improver, fertilizer and pesticide in agriculture; ; 3 in papermaking, paint, rubber, ceramics, plastics, textile, food, arts and crafts, culture, education and medicine;

Gypsum deposits are mined by open-pit methods in southwest Arkansas from the DeQueen Limestone (Early Cretaceous) of the Trinity Group. The formation is exposed in a narrow belt extending from the Little Missouri River in Pike County westward through Howard and …

The History of Gypsum Because water will return Gypsum to its Original Rock Form, Gypsum Has Earned Its Reputation as the "Wonder Mineral" in Construction. The Egyptians knew about it, and used it in the Pyramids. It's also found in toothpaste; helps make peanuts grow; is found in the walls of your home; and makes many sets for movies.

Gypsum occurs in extensive beds formed by the evaporation of ocean brine. It also occurs as an alteration product of sulfides in ore deposits and as volcanic deposits. Name: From the Greek name for the mineral, but more especially for the calcined mineral. Association: Halite, celestine, calcite, aragonite, anhydrite, dolomite, sulfur.

Gypsum is a soft sulfate naturally occurring, white powdered mineral composed of calcium sulfate di-hydrate with the chemical formula CaSO. 4·2H2O. It is widely mined and is used as a fertilizer and main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall.

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 (CaSO 4. 2H 2 O) is very similar to Anhydrite (CaSO 4).The chemical difference is that gypsum contains two waters and anhydrite is without water.

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General Gypsum Information: Chemical Formula: CaSO4·2(H2O) Composition: Molecular Weight = 172.17 gm Calcium 23.28 % Ca 32.57 % CaO: Hydrogen 2.34 % H 20.93 % H 2 O: Sulfur 18.62 % S 46.50 % SO 3: Oxygen 55.76 % O: 100.00 % 100.00 % = TOTAL OXIDE

Anhydrite is not a common mineral, as it easily alters to the much more common mineral Gypsum from the addition of water into its chemical structure.Anhydrite and Gypsum are chemically similar, except Gypsum has the addition of water. In fact, the name of Anhydrite is derived from "An" and "Hydra" - meaning "without water" - in reference to its similarity to Gypsum but the fact that it lacks ...

Gypsum from Morenci mine, Greenlee Co., Arizona, United States. Long, slender crystals of Gypsum, variety selenite to over 1cm and are waterclear. Click thumbnail images for larger view.

General Gypsum Information : Chemical Formula: CaSO4•2(H2O) Composition: Molecular Weight = 172.17 gm Calcium 23.28 % Ca 32.57 % CaO: Hydrogen 2.34 % H 20.93 % H 2 O: Sulfur 18.62 % S 46.50 % SO 3: Oxygen 55.76 % O: 100.00 % 100.00 % = TOTAL OXIDE

Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO 4 and related hydrates.In the form of γ-anhydrite (the anhydrous form), it is used as a desiccant.One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum.It has many uses in industry. All forms are white solids that are poorly soluble in water.

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Gypsum Mineral Information photos and Facts, plaster manufacturing. . Gypsum Mineral Facts: Chemical Formula: CaSO4.2H2 O (Various forms including Alabaster, Satin Spar, Selenite) Colors: White and colorless when pure. Impurities may render it shades of gray, red, yellow, blue or …

Gypsum is a sedimentary rock and a crystalline mineral. "Gypsum is a soft, white to gray, "chalky" mineral composed of calcium sulfate and water," says Raymond Anderson of Iowa's Department of Natural Resources. Gypsum's chemical symbol is CaSO4•2H2O.

variety of gypsum is called satin spar . Anhydrite (CaSO 4) is a calcium sulphate mineral found associated with gypsum commonly as a massive or fibrous mineral. Gypsum that occurs in nature is called mineral gypsum. In addition to mineral gypsum, seawater and some chemical and fertilizer plants are sources of by-product marine gypsum and by-product

Garden Gypsum Information. As a rule, using gypsum for garden tilth will probably not harm your plants, but it simply is not necessary. Using a little elbow grease and lovely organic goodies from fall clean up or compost worked into the soil to a depth of at least 8 inches (20 cm.) will provide an excellent soil amendment.

Mica. Mica is a mineral name given to a group of minerals that are physically and chemically similar. They are all silicate minerals, known as sheet silicates because they form in distinct layers. Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat-resistant and does not conduct electricity.

Mineral Name: Gypsum Chemical Composition: CaSO4.2H2O, hydrous calcium sulfate Color: Gray, white, brown, clear Streak: White Hardness: 2 Cleavage/Fracture: Gypsum's cleavage is complex, there is only good cleavage in one direction and fair in two others that create thin, rhombic fragments. Crystal Form: Gypsum appears mostly as a four sided crystal, otherwise known as tabular crystal.

gypsum, common sulfate mineral of great commercial importance, composed of hydrated calcium sulfate (CaSO 4 ·2H 2 O). In well-developed crystals the mineral commonly has been called selenite.The fibrous massive variety has a silky lustre and is called satin spar; it is translucent and opalescent and is valued for ornaments and jewelry. The fine-grained massive variety called alabaster is ...

Gypsum plaster, white cementing material made by partial or complete dehydration of the mineral gypsum, commonly with special retarders or hardeners added.

The mineral gypsum has many uses in today's society. In addition to the manufacture of drywall for building construction, gypsum is also widely used as a soil amendment, in the production of cement, and as an ingredient in the manufacture of many types of commercial products. Since the gypsum makes up approximately 90% of the weight of a ...

For example, gypsum has been used in the manufacture of assembled cabochons designed to imitate rainbow moonstones. Enhancements. Gypsum can take dyes and coatings very easily. Sources. The most common sulfate mineral, gypsum has many sources all over the world. It occurs especially in evaporite environments.

Gypsum is an industrially important mineral. It is the primary ingredient of plaster-of-Paris, which is finely ground Gypsum, and it is used in the production of cement. It is also the main component of sheet rock. It is used as a flux for creating earthenware, and can be used as a fertilizer.

Gypsum is a mineral comprised of calcium sulfate dihydrate. Gypsum is considered an evaporate and forms when evaporation of water allows oxygen to bond with the surrounding sulfur to create sulfate. The sulfate will then bond with surrounding calcium and water to create the final product gypsum. Crystal System: Elongated prismatic crystals.

Gypsum is one of the more common minerals in sedimentary environments. It is a major rock forming mineral that produces massive beds, usually from precipitation out of highly saline waters. Since it forms easily from saline water, gypsum can have many inclusions of …

U.S. Geological Survey, Mineral Commodity Summaries, January 2020 GYPSUM Demand for gypsum depends principally on construction industry activity, particularly in the United States, where the majority of gypsum consumed is used for building plasters, the manufacture of …

Mineral Resource of the Month: Gypsum. by U.S. Geological Survey . Thursday, June 14, 2018. Robert D. Crangle Jr., mineral commodity specialist for the U.S. Geological Survey, compiled the following information on gypsum, an essential commodity for …

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 on behalf of its member companies

Gypsum Statistics and Information. Gypsum, one of the most widely used minerals in the world, literally surrounds us every day. Most gypsum in the United States is used to make wallboard for homes, offices, and commercial buildings; a typical new American home contains more than 7 metric tons of gypsum alone. Moreover, gypsum is used worldwide ...

Calcium(II) sulfate dihydrate, Gypsum stone, Hydrated calcium sulfate, Mineral white [Note: Gypsum is the dihydrate form of calcium sulfate; Plaster of Paris is the hemihydrate form.] White or nearly white, odorless, crystalline solid.