Latest Gypsum Stories
DENVER, Pa., May. 20, 2015 /PRNewswire-iReach/ -- USA Gypsum held its Executive Tour and Ribbon-Cutting Ceremony on Friday, April 17, 2015.
LONDON, March 3, 2015 /PRNewswire/ -- The Gypsum Products Europe Report gives Market Consumption / Products / Services for 44 countries by 6 to 10-Digit NAICS Product Codes by 3 Time series:
Enhanced fire resistance with new, patent-pending 1/2-inch wallboard provides commercial grade fire protection for residential projects. Atlanta (PRWEB) January
Topical research study “Gypsum: 2014 Market Review and Forecast” elaborated by Merchant Research & Consulting Ltd is now available at mcgroup.co.uk London,
DALLAS, November 29, 2014 /PRNewswire/ -- Global gypsum board industry capacity was 12.2 billion square meters in 2013, up 8% from a year earlier, and North America was
Kleber & Associates to Promote Gypsum Product Lines ATLANTA, Ga.
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,
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.
Gypsum is a very soft mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4Â·2H2O. Chemical structure Heating gypsum above approximately 150Â°C (302Â°F) partially dehydrates the mineral by driving off exactly 75% of the water contained in its chemical structure. CaSO4Â·2H2O + heat â†’ CaSO4Â·Â½H2O + 1Â½H2O (steam) The partially dehydrated mineral is called calcium sulfate hemihydrate or calcined gypsum (commonly known as plaster of...
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...
Selenite (chemical formula: CaSO4Â·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...
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.