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GYPSUM

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GYPSUM

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.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 Mohs scale of mineral hardness defines gypsum as hardness value 2 based on scratch hardness comparison.

Commercial quantities of gypsum are found in the cities of Araripina and Grajaú in Brazil; in Pakistan, Jamaica, Iran (world’s second largest producer), Thailand, Spain (the main producer in Europe), Germany, Italy, England, Ireland and Canada and the United States. Large open pit quarries are located in many places including Fort Dodge, Iowa, which sits on one of the largest deposits of gypsum in the world, and Plaster City, California, United States, and East Kutai, Kalimantan, Indonesia. Several small mines also exist in places such as Kalannie in Western Australia, where gypsum is sold to private buyers for additions of calcium and sulfur as well as reduction of aluminum toxicities on soil for agricultural purposes.

Crystals of gypsum up to 11 m (36 ft) long have been found in the caves of the Naica Mine of Chihuahua, Mexico. The crystals thrived in the cave’s extremely rare and stable natural environment. Temperatures stayed at 58 °C (136 °F), and the cave was filled with mineral-rich water that drove the crystals’ growth. The largest of those crystals weighs 55 tonnes (61 short tons) and is around 500,000 years old.

If you want to extract this soft sulfate mineral, we are always with you in the extraction machinery section, from the beginning to the start of the factory.

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KaniSanat

Kani sanat was founded in 1997 by Amir Toloeian along with a talented and innovative team .Since then it has continued to grow and played a pioneering role in the industry. The specialty is in designing, manufacturing, and installing all the equipment and machinery required for processing nonmetal minerals such as gypsum, lime, calcium carbonate and other micronized powders.

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  • Address: No 37, Ahmadi Rowshan ( Choob bori) St. Old Tehran Robat Karim Road, Tehran, Iran
  • Email:Info@kanisanat.com
  • Office: +98-2156456329 | +98-2156457548
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