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gypsum    音标拼音: [dʒ'ɪpsəm]
n. 石膏
vt. 用石膏处理

石膏用石膏处理

gypsum
n 1: a common white or colorless mineral (hydrated calcium
sulphate) used to make cements and plasters (especially
plaster of Paris)

Gypsum \Gyp"sum\ (j[i^]p"s[u^]m), n. [L. gypsum, Gr. gy`psos;
cf. Ar. jibs plaster, mortar, Per. jabs[imac]n lime.] (Min.)
A mineral consisting of the hydrous sulphate of lime
(calcium). When calcined, it forms plaster of Paris.
{Selenite} is a transparent, crystalline variety;
{alabaster}, a fine, white, massive variety.
[1913 Webster]

Gypsum, CO -- U.S. town in Colorado
Population (2000): 3654
Housing Units (2000): 1210
Land area (2000): 3.680365 sq. miles (9.532101 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 3.680365 sq. miles (9.532101 sq. km)
FIPS code: 33695
Located within: Colorado (CO), FIPS 08
Location: 39.644499 N, 106.940232 W
ZIP Codes (1990): 81637
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Gypsum, CO
Gypsum


Gypsum, KS -- U.S. city in Kansas
Population (2000): 414
Housing Units (2000): 179
Land area (2000): 0.432824 sq. miles (1.121009 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 0.432824 sq. miles (1.121009 sq. km)
FIPS code: 29250
Located within: Kansas (KS), FIPS 20
Location: 38.705118 N, 97.426876 W
ZIP Codes (1990): 67448
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:
Gypsum, KS
Gypsum


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  • Gypsum - Wikipedia
    Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O [4] It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster , drywall and blackboard or sidewalk chalk
  • Gypsum | Definition, Uses, Facts | Britannica
    Gypsum, common sulfate mineral of great commercial importance, composed of hydrated calcium sulfate It occurs in extensive beds associated with other evaporite minerals, particularly in Permian and Triassic sedimentary formations; it is deposited from ocean brine, followed by anhydrite and halite
  • Gypsum | Properties, Formation, Uses and Deposits
    Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate (CaSO4·2H2O) It is commonly found in sedimentary rock formations and is often associated with other minerals such as anhydrite, halite, and sulfur The name “gypsum” is derived from the Greek word “gypsos,” which means “plaster” or “chalk ”
  • Gypsum Mineral | Uses and Properties - Geology. com
    What is Gypsum? Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite Gypsum (CaSO 4 2H 2 O) is very similar to Anhydrite (CaSO 4) The chemical difference is that gypsum contains two waters and anhydrite is without water
  • Gypsum: Properties, Uses, Formation, Types – Geology In
    Gypsum is a very common, soft sulfate mineral composed primarily of calcium sulfate dihydrate, with the chemical formula CaSO₄·2H₂O Visually, it can be colorless or white, but impurities can also give it a variety of hues
  • Gypsum | Common Minerals - University of Minnesota Twin Cities
    Gypsum is a very soft mineral that is easily identified by its hardness, cleavage, and solubility in water Typically clear to white, gypsum may be colored reddish to brown or yellow if impurities are present Most gypsum occurs in its massive form, as layers of rock that often intercalate layers of shale, limestone, or dolostone
  • What is Gypsum? A Detailed Overview of Its Properties and Uses
    Discover the comprehensive guide on gypsum, covering its properties, types, geological formation, extraction, processing, and diverse applications Learn about the historical significance, modern innovations, environmental impact, and future trends of this versatile mineral





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