Anhydrite
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Project at a Glance Contents on the CD ROM
  • An anhydrous calcium sulfate, Mineral CaSO4 which is in the orthorhombic crystal form with three directions of cleavage parallel to the three planes of symmetry.
  • Anhydrite is found as a constituent of Evaporite deposits, typically associated with gypsum, alkali halides and carbonates.
  • Colours of anhydrite vary from colorless to pale blue or violet if transparent; white, mauve, rose, pale brown or gray from included impurities.
  • This Sulphate mineral is also observed in submarine hydrothermal systems, and in some igneous rocks.
  • Direct heating of gypsum to about 360oC is required to form anhydrite; at lower temperatures.
  • A major component deposits in sedimentary and in cap rocks above salt domes which formed by
    dehydration of gypsum and also an alternation product in hydrothermal mineral deposits.
  • Naturally occurring anhydrite is a rare mineral since it readily transforms into gypsum when exposed to water. Reverse process is also possible, creating anhydrite by dehydrating gypsum.
  • Associated with Calcite, halite and sulphides in some vein deposits.
  • Anhydrite is used for the production of sulfuric acid and as a filler in paper.
  • Gypsum and anhydrite are used in the preparation of various prefabricated products such as lath, veneer base, and sheathing.
  • Occurs in fluid inclusions in minerals of carbonatites, alkaline igneous rocks and ores of magmatic origin.
  • Depending on its geological history, it may occur as either primary or secondary minerals in a deposit.
  • Anhydrite increases the weight of the finished wall board products and is abrasive to grinding
    and processing equipment.
  • When compared to gypsum, anhydrite as a contaminant which is harder and denser and also contains higher levels of soluble salts.
  • By the year of 2017, the global market for gypsum and anhydrite is forecast to reach 211.6 million metric tons.

Technology

  • Anhydrite.
  • Evaporite Minerals- Anhydrite.
  • Anhydrite in Charnockite rocks.
  • Anhydrite Mineral.
  • Anhydrite Information.
  • General-Anhydrite.

Origin

  • Survey of new area of Anhydrite deposit.
  • Anhydrite in Southwestern Indiana.
  • Origin of Anhydrite from Deep Sea drilling Project.
  • Newly Discovered Anhydrite Soil in Coastal Lands.
  • Anhydrite Cap Rock of American Salt Domes.

MSDS

  • Anhydrite-Safety Sheet.
  • Industrial Products, Filler.
  • Anhydrous Gypsum.

Products

  • Anhydrite Super.
  • Anhydrite binder.
  • Anhydrite.

Process

  • Hydration of Anhydrite.
  • Determination of Anhydrite in Reservoirs.
  • Experiments on Anhydrite Rocks of Different grain sizes.
  • Synthetic Anhydrite Screed.

Patent

  • Anhydrite Plasters.
  • Producing Insoluble Calcium Sulfate Anhydrite.
  • Fire Resistant Gypsum Board-Anhydrite.
  • Quick Setting Anhydrite.
  • Anhydrite Concrete and Building Elements.
  • Conversion of Anhydrite into Gypsum.

Machinery

  • Anhydrite Crusher Machine.
  • Anhydrite Raymond Mill.

Equipment Suppliers

  • Supplier1 from China.
  • Supplier2 from China.
  • Supplier from Denmark.

Suppliers

  • List of Suppliers.
  • Manufacturers List.

Company Profile

  • Company from Lithuania.
  • Company from Singapore.
  • Company1 from Thailand.
  • Company2 from Thailand.
  • Company from Italy.

Consultancy

  • Consultancy from US.
  • Online Consultancy.
  • Information Site for Anhydrite.

Study

  • Anhydrite-Gypsum Equilibrium Relations.
  • Rare earth element composition of Anhydrite.
  • Solubility of Anhydrite, in Solutions at high Pressures.
  • Hydration of anhydrite of gypsum in a ball mill.
  • Gypsum-Anhydrite Transformations in Messinian Evaporites.
  • Investigations on the swelling behavior of pure anhydrites.
  • Fluid inclusions in anhydrite from the  geothermal system.
  • Gypsum-Anhydrite Equilibrium at one atmosphere pressure.
  • Delineation of anhydrite transition zone using electrical tomography.
  • Anhydrite binder Calcined from Phosphogypsum.
  • Stability of Gypsum and Anhydrite.

Report

  • Physical Properties of Anhydrite.
  • Anhydrite-Engineering Problems.
  • Gypsum and Anhydrite.
  • Isotopic Evidences of anhydrite-limestone.
  • Anhydrite Bearing andesite as a source for sulfur.
  • Anhydrite-product innovation or the next tile industry swear word.

Uses

  • Uses of Anhydrite from the production of hydrofluoric acid.
  • Anhydrite as a fertilizer.

Market

  • Anhydrite Global Industry Markets and Outlook.
  • Anhydrite Market Buoyed by rising demand from construction activity.

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