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单词 gypsum
释义

Definition of gypsum in English:

gypsum

noun ˈdʒɪpsəmˈdʒɪpsəm
mass noun
  • A soft white or grey mineral consisting of hydrated calcium sulphate. It occurs chiefly in sedimentary deposits and is used to make plaster of Paris and fertilizers, and in the building industry.

    石膏

    Example sentencesExamples
    • They are cast in white gypsum and hang on a deep blue wall.
    • A white material, probably gypsum, was used to preserve the body of what archaeologists hope is a Roman, buried around 300AD.
    • Quartz and gypsum are other familiar examples of crystalline structures.
    • In each of these settings, progressive evaporation of seawater leads to precipitation of calcite and gypsum followed by halite.
    • To neutralize the soil of a bare spot caused by dog urine, pour tomato juice over the area or treat the soil with powdered gypsum.
    • The sulfur dioxide in the gas reacts with the limestone to form gypsum (calcium sulfate).
    • But as the popularity of drywall, sky-rocketed, gypsum plaster fell out of favor.
    • Invisible traces of quartz, calcite, gypsum and feldspar, the dust of its resting place for more than two millennia, cling to the bronze.
    • Quartz is the dominant mineral in veins in siliceous rocks, calcite in limestones, and gypsum in gypsiferous sediments.
    • Most structures were built in limestone gypsum and are an eclectic mix of Assyrian, Hellenistic, Parthian and Roman styles.
    • Mineral resources include phosphates, salt, and gypsum, and manufacturing industry includes textiles, cement, and chemicals.
    • Other associated minerals include tetrahedrite, calcite, and gypsum.
    • Colorless gypsum and white pickeringite-halotrichite are the most common efflorescences found on shale.
    • It is dominated by the deposition of calcite with minor pyrite, marcasite, barite, anhydrite and gypsum.
    • The mix we use contains compost, peat, perlite, rock phosphates, blood meal, calcite clay and gypsum.
    • Do not use mortar-mill type for mixing gypsum plasters.
    • It was pale to medium green and associated with yellow pharmacosiderite and colorless to white gypsum.
    • Among the gravels there were shiny crystals of the mineral gypsum, the residue left behind when seawater evaporates.
    • The lake contained an area of 3,370 acres and was said to have a practically inexhaustible deposit of salt and gypsum.
    • Thin crusts of small rhodochrosite crystals on high-grade manganese ore were covered by masses of clear gypsum.
    Synonyms
    plaster of paris

Derivatives

  • gypseous

  • adjective
  • gypsiferous

  • adjective dʒɪpˈsɪf(ə)rəsdʒɪpˈsɪf(ə)rəs
    • However, another hypothesis suggests that gypsiferous deposits could also be formed from the reaction between calcium carbonate and sulfuric acid, which was apparently from the oxidation of the element sulfur.
      Example sentencesExamples
      • Quartz is the dominant mineral in veins in siliceous rocks, calcite in limestones, and gypsum in gypsiferous sediments.
      • At the left margin of the valley, the gypsiferous sequence is underlain by a clay and marl unit with an exposed thickness greater than 30 m.
      • The message in this Note is that reported values of exchangeable calcium for calcareous or gypsiferous soils are usually incorrect.
      • By this mechanism holes, commonly up to 20m deep and 40m or more across, continue to appear suddenly in gypsiferous terranes throughout the world.
      • Is composed almost entirely of a peculiar greenish-blue, unctuous, laminated clay, gypsiferous in places; light-bluish-gray color when fresh, weathering dull yellow and making a black soil.
      • Note the rounded boulders in the fluvial sediments, and the mixing of gypsiferous and quartzose lithologies at places on the outcrop.
      • The others include the gypsiferous deposits of Lake Estancia and Lake Trinity.
      • Some areas are mined for the underlying gypsiferous materials that is used for making wall board.
      • Calcareous and gypsiferous soils are common along many river floodplains in the subarctic and arctic regions of Alaska as well as in more arid regions such as deserts and grasslands.

Origin

Late Middle English: from Latin, from Greek gupsos.

Definition of gypsum in US English:

gypsum

nounˈdʒɪpsəmˈjipsəm
  • A soft white or gray mineral consisting of hydrated calcium sulfate. It occurs chiefly in sedimentary deposits and is used to make plaster of Paris and fertilizers, and in the building industry.

    石膏

    Example sentencesExamples
    • It was pale to medium green and associated with yellow pharmacosiderite and colorless to white gypsum.
    • It is dominated by the deposition of calcite with minor pyrite, marcasite, barite, anhydrite and gypsum.
    • Most structures were built in limestone gypsum and are an eclectic mix of Assyrian, Hellenistic, Parthian and Roman styles.
    • The lake contained an area of 3,370 acres and was said to have a practically inexhaustible deposit of salt and gypsum.
    • Thin crusts of small rhodochrosite crystals on high-grade manganese ore were covered by masses of clear gypsum.
    • Colorless gypsum and white pickeringite-halotrichite are the most common efflorescences found on shale.
    • A white material, probably gypsum, was used to preserve the body of what archaeologists hope is a Roman, buried around 300AD.
    • Mineral resources include phosphates, salt, and gypsum, and manufacturing industry includes textiles, cement, and chemicals.
    • Among the gravels there were shiny crystals of the mineral gypsum, the residue left behind when seawater evaporates.
    • To neutralize the soil of a bare spot caused by dog urine, pour tomato juice over the area or treat the soil with powdered gypsum.
    • Quartz is the dominant mineral in veins in siliceous rocks, calcite in limestones, and gypsum in gypsiferous sediments.
    • Invisible traces of quartz, calcite, gypsum and feldspar, the dust of its resting place for more than two millennia, cling to the bronze.
    • In each of these settings, progressive evaporation of seawater leads to precipitation of calcite and gypsum followed by halite.
    • The mix we use contains compost, peat, perlite, rock phosphates, blood meal, calcite clay and gypsum.
    • Other associated minerals include tetrahedrite, calcite, and gypsum.
    • The sulfur dioxide in the gas reacts with the limestone to form gypsum (calcium sulfate).
    • They are cast in white gypsum and hang on a deep blue wall.
    • Quartz and gypsum are other familiar examples of crystalline structures.
    • Do not use mortar-mill type for mixing gypsum plasters.
    • But as the popularity of drywall, sky-rocketed, gypsum plaster fell out of favor.
    Synonyms
    plaster of paris

Origin

Late Middle English: from Latin, from Greek gupsos.

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更新时间:2024/11/11 9:27:49