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Latest Gypsum Stories

2014-09-30 23:24:12

Kleber & Associates to Promote Gypsum Product Lines ATLANTA, Ga.

2014-09-19 23:03:11

Cover crops, gypsum applications and a new initiative to develop whole-system solutions to reduce algal blooms and improve water quality were key topics discussed at media event. Chicago,

2014-08-29 12:22:27

Canada's Most Trusted Contractor and son Mike Jr. give viewers an all access pass as they work together to build "Mike's Ultimate Garage" TAMPA, Fla., Aug.

2014-08-07 23:09:28

Early results just released from new research by Ohio State University is showing significant reductions in phosphorous runoff from farm fields, bringing new life to an ancient farming technique.

2014-06-26 08:30:20

CHARLOTTE, N.C., June 26, 2014 /PRNewswire/ -- For do-it-yourself homeowners who have wanted to install and finish drywall for their home improvement projects but weren't sure how, National

2014-06-05 23:06:33

The fourth annual Midwest Soil Improvement Symposium is scheduled for August 13, 2014 in Manhattan, KS.

2014-05-28 23:05:33

DTE Energy has entered into an agreement with the GYPSOIL division of Beneficial Reuse Management to market GYPSOIL brand gypsum from the Monroe Power Plant in Monroe, Mich.

2014-05-05 16:27:50

Becomes first certified calcium sulfate supplier NORMAN, Okla., May 5, 2014 /PRNewswire/ -- ACG announces certification by BRC (British Retail Consortium), a leading global

2014-04-01 23:00:39

Cory Schurman joins GYPSOIL Division of Beneficial Reuse Management as national sales manager to coordinate marketing programs, and work with customers, sales representatives and agricultural


Latest Gypsum Reference Libraries

28_d2c55a2f2b1619323d50ee8c6db10bb5
2005-05-26 11:56:59

Celestite (SrSO4) is a mineral consisting of strontium sulfate. The mineral is also known as celestine and is named for its occasional delicate blue color. Celestite occurs as crystals, and also in compact massive and fibrous forms. It is mostly found in sedimentary rocks, often associated with the minerals gypsum, anhydrite, and halite. The mineral is found worldwide, usually in small quantities. Pale blue crystal specimens are found in Madagascar.

28_1edea1726841016f6cad5f55677d5af7
2005-05-26 10:48:13

Gypsum is a very soft mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. Chemical structure Heating gypsum above approximately 150°C (302°F) partially dehydrates the mineral by driving off exactly 75% of the water contained in its chemical structure. CaSO4·2H2O + heat → CaSO4·½H2O + 1½H2O (steam) The partially dehydrated mineral is called calcium sulfate hemihydrate or calcined gypsum (commonly known as plaster of...

0_b92765557632d8060f008938c06a0c74
2005-05-26 10:40:24

Halite is the mineral of sodium chloride, NaCl, commonly known as rock salt. Halite forms isometric crystals. The mineral is colorless to white, light blue, dark blue, and pink. It commonly occurs with other evaporite deposit minerals such as several of the sulfates, halides and borates. Halite occurs in vast beds of sedimentary evaporite minerals that result from the drying up of enclosed lakes, playas, and seas. Salt beds may be up to 350 m thick and underlie broad areas. In the United...

28_65c12c42e9ce0997ce045dbd554638ce
2005-05-25 18:13:45

Selenite (chemical formula: CaSO4·2H2O) is a hydrous calcium sulfate, meaning it is composed of oxygen, sulfur, hydrogen, calcium and water. It is basically a glassy, well-crystallized form of gypsum and is often referred to as satin spar. Selenite is soft, and can easily be scratched with a fingernail. The thin crystals can be slightly flexible, but will snap if bent too far. Some crystals found in Kentucky have grown in severely curved patterns and flower-like petals. In some very...

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Word of the Day
obdormition
  • Sleep; the state or condition of being asleep.
  • The state or condition of numbness of a part due to pressure on a nerve: as, the obdormition of a limb.
The word 'obdormition' comes from a Latin word meaning "to fall asleep".
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