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Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO
4·2H2O. 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 Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England. Gypsum also crystallizes as translucent crystals of selenite. It forms as an evaporite mineral and as a hydration product of anhydrite.
The Town of Gypsum is a Home Rule Municipality located in Eagle County, Colorado, United States. Gypsum is a part of the Edwards, CO Micropolitan Statistical Area. The population was 6,477 in 2010. Gypsum is the home of an American Gypsum drywall plant and mine.
Mortar is a workable paste which hardens to bind building blocks such as stones, bricks, and concrete masonry units, to fill and seal the irregular gaps between them, spread the weight of them evenly, and sometimes to add decorative colors or patterns to masonry walls. In its broadest sense, mortar includes pitch, asphalt, and soft mud or clay, as used between mud bricks. The word "mortar" comes from Latin mortarium, meaning crushed.
Empire is an unincorporated community and census-designated place (CDP) in Washoe County, Nevada, with a population estimated at 65 (2021). It is part of the Reno–Sparks Metropolitan Statistical Area; before the 2010 census, it was part of the Gerlach–Empire census-designated place. The nearest town, Nixon, is 60 miles (97 km) to the south on a reservation owned by the Pyramid Lake Paiute Tribe.
The Eagle River is a tributary of the Colorado River, approximately 60.5 miles (97.4 km) long, in west central Colorado in the United States.
Selenite, satin spar, desert rose, gypsum flower are crystal habit varieties of the mineral gypsum.
The Khewra Salt Mine is in Khewra, north of Pind Dadan Khan, an administrative subdivision of Jhelum District, Punjab Region, Pakistan. The mine is in the Salt Range, Potohar plateau, which rises from the Indo-Gangetic Plain, and is the second largest in the world.
Gypsum is an unincorporated community in eastern Portage Township, Ottawa County, Ohio, United States. It has a post office with the ZIP code 43433.
Himalayan salt is rock salt (halite) mined from the Punjab region of Pakistan. The salt, which often has a pinkish tint due to trace minerals, is primarily used as a food additive to replace refined table salt but is also used for cooking and food presentation, decorative lamps and spa treatments. The product is often promoted with groundless claims that it has health benefits.
The Selenite Range is a mountain range in western Pershing County, Nevada. The range is a north–south trending feature approximately 27 miles (43 km) long and 4 miles (6.4 km) wide.
National Gypsum Company is a company based in Charlotte, North Carolina, that produces drywall gypsum boards in the US. It has 17 gypsum board plants in the US and presents itself as a fully integrated building products manufacturer. It is a private company, incorporated as New NGC, Inc. in 1993. It is one of the six producers which hold approximately 81% of the worldwide wallboard market
The Domtar Mine, formed from the consolidation of Grand Rapids Gypsum Company mines 1 & 2, is an inactive underground gypsum mine in Walker, a suburb of Grand Rapids, Michigan.
The Dadukhel mine is one of the largest gypsum mines in Pakistan. The mine is located in Punjab. The mine has reserves amounting to 53 million tonnes of gypsum.
The Khewra mine is one of the largest gypsum mines in Pakistan. The mine is located in Punjab. The mine has reserves amounting to 25 million tonnes of gypsum.
The Mawand mine is one of the largest gypsum mines in Pakistan. The mine is located in Punjab. The mine has reserves amounting to 20 million tonnes of gypsum.
The Dera Ismail Khan mine is one of the largest gypsum mines in Pakistan. The mine is located in Khyber Pakhtunkhwa. The mine has reserves amounting to 90 million tonnes of gypsum.
The Kohat mine is one of the largest gypsum mines in Pakistan. The mine is located in Khyber Pakhtunkhwa. The mine has reserves amounting to 4.91 billion tonnes of gypsum.
Lake MacDonnell is a salt lake on western Eyre Peninsula near the Nullarbor Plain. The closest town is Penong. It is the site of a former salt mine and the largest gypsum mine in Australia, on the largest gypsum deposit in the southern hemisphere.
Everard Central is a locality in South Australia's Mid North. The locality is situated in approximately the southern two thirds of the cadastral Hundred of Everard.
The Blue Diamond Mine and mill is a gypsum production facility at Blue Diamond Hill in Clark County, Nevada. The mine was initially owned by a Los Angeles company known as Blue Diamond, which began mining the land in 1925. An on-site processing plant was added in 1941, followed a year later by the construction of a nearby company town, known as Blue Diamond, Nevada. The mine was eventually sold to James Hardie Gypsum, which expanded operations in 1998. BPB took over the gypsum factory a few years later, and developer Jim Rhodes purchased 2,400 acres in 2003.
References
- 1 2 3 "Mineral deposits of Pakistan" (PDF). pakboi.gov.pk. 2012. Archived from the original (PDF) on 2014-03-27. Retrieved 2013-07-23.