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Gypsum - Wikipedia

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall.A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including ...

Crystal class: Prismatic (2/m), H-M symbol: (2/m)Get Price
gypsum rock - Deutsch-Übersetzung – Linguee Wörterbuch

Viele übersetzte Beispielsätze mit "gypsum rock" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen.

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5 Things You Didn't Know About Gypsum | .Deze pagina vertalen

14-1-2019 · Gypsum, also known as calcium sulfate hydrate, is a naturally occurring mineral found in layers of sedimentary rock all over the world. It is formed by the evaporation and replenishment of waters containing calcium and sulfates.

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Mechanism of water extraction from gypsum rock .Deze pagina vertalen

This research provides an in-depth analysis of how microorganisms are able to survive in the world's driest non-polar place, the Atacama Desert, Chile. We show that these organisms extract water from gypsum rocks in this desert, enabling these colonizing microorganisms to sustain life in this extreme environment. We believe the results in this work could not only shed light on how ...

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How to Dispose of Sheetrock | HunkerDeze pagina vertalen

Sheetrock is the brand name for the drywall produced by the United States Gypsum Company, and while it's common, it isn't the only type of drywall around. Drywall consists of a paper-covered, hard-packed gypsum core, and it usually comes in 4- by 8-foot sheets with thicknesses from 1/4 to 5/8 inches.

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Gypsum Board: Are Our Walls Leaching Toxins? | .Deze pagina vertalen

14-3-2012 · By any name--drywall, wallboard, or plasterboard--gypsum products may not be as innocent as we once thought. Drywall, which makes up 15% of demolition and construction waste, leaches toxins and releases hydrogen sulfide gas in landfills. Virtually ubiquitous in our buildings, gypsum board is widely seen as an innocuous building material.

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Gypsum and Halite - University of PittsburghDeze pagina vertalen

16-7-2020 · Gypsum is readily identified by its softness (a fingernail scratches it). Gypsum comes as clear crystals that display one perfect cleavage (selenite), as blocks of featureless white rock (alabaster), and as silky fibrous blocks (satin spar). Halite (next page) breaks into cubes (three cleavages at right angles) and tastes like table salt.

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Blue Diamond Hill Gypsum Mine

Blue Diamond Gypsum Mine is one of the oldest and most respected gypsum mines in the country. Since 1925, BDH Gypsum Mine has delivered top quality g

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Plant Locations | About Us | American GypsumDeze pagina vertalen

American Gypsum is the fifth largest producer of gypsum wallboard in North America operating four gypsum plants with five production lines.

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Gypsum | Definition of Gypsum at DictionaryDeze pagina vertalen

Gypsum definition, a very common mineral, hydrated calcium sulfate, CaSO4⋅2H2O, occurring in crystals and in masses, soft enough to be scratched by the fingernail: used to make plaster of Paris, as an ornamental material, as a fertilizer, etc. See more.

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Desert rose (crystal) - WikipediaDeze pagina vertalen

Desert rose is the colloquial name given to rose-like formations of crystal clusters of gypsum or baryte which include abundant sand grains. The 'petals' are crystals flattened on the c crystallographic axis, fanning open in radiating flattened crystal clusters.. The rosette crystal habit tends to occur when the crystals form in arid sandy conditions, such as the evaporation of a shallow salt ...

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Gypsum Mineral | Uses and Properties

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. Gypsum is the most common sulfate mineral.

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QuietRockDeze pagina vertalen

QuietRock sound reducing drywall by PABCO Gypsum pushes the boundaries of building science to eliminate the need for extra material or complex soundproofing methods. Quiet brand products improve architectural freedom and promote sustainable construction.

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Technical – Gypsum AssociationDeze pagina vertalen

Email. Company/Affiliation. SUBSCRIBE × Cancel The Gypsum Association actively participates in the technical standards and code arenas as a means of promoting the proper use of gypsum board and related gypsum products in the construction industry.

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Uses for Gypsum Powder | SciencingDeze pagina vertalen

Gypsum is a soft mineral that usually appears white or gray and is composed of translucent crystals. Gypsum deposits are found as sediment in areas that were once covered by water. When rock gypsum is heated, it releases the water molecules bonded to it, and the resulting product is anhydrous gypsum.

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Gypsum Statistics and Information - usgs.govDeze pagina vertalen

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 in concrete for highways, bridges, buildings, and many other

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Extreme microbes survive the desert by dissolving .Deze pagina vertalen

The rocks supporting that biofilm have to be pretty special, according to DiRuggiero. They have to be somewhat translucent to allow photosynthesizing microbes to get energy from the sun. Gypsum fits that bill, and so microbes in a biofilm on gypsum can make carbon-containing molecules that keep their community alive.

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Gypsum Rock - Jonoub Gypsum

Gypsum Rock. About product. Gypsum is the common name for the mineral calcium sulfate, which has a chemical formula CaSO4. Gypsum bonds easily with water and is usually found in its natural state as hydrated calcium sulfate, with a chemical formula of CaSO4.2H20. Gypsum is a soft mineral that usually appears white or gray and is composed of translucent crystals. It is widely mined and is used ...

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Gypsum - an overview | ScienceDirect Topics

Gypsum (CaSO 4 ·2H 2 O) is one of the most common evaporite rocks, that is, inorganic rocks formed by chemical precipitation in a concentrated solution. As gypsum is much more soluble than limestone, it is much less common in outcrops. This is one of the reasons why gypsum karst has received relatively little appreciation in the past in the mainstream of karstology and has commonly been ...

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5 Things You Didn't Know About Gypsum | .

14.01.2019 · Gypsum, also known as calcium sulfate hydrate, is a naturally occurring mineral found in layers of sedimentary rock all over the world. It is formed by the evaporation and replenishment of waters containing calcium and sulfates. White or gray in color, gypsum can be ground into a fine powder and boiled until the majority of its moisture is removed — a process known as calcination. Adding the ...

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