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calcite    音標拼音: [k'æls,ɑɪt]
n. 方解石

方解石

calcite
n 1: a common mineral consisting of crystallized calcium
carbonate; a major constituent of limestone

Calcite \Cal"cite\ (k[a^]l"s[imac]t), n. [L. calx, calcis,
lime.] (Min.)
Calcium carbonate, or carbonate of lime. It is rhombohedral
in its crystallization, and thus distinguished from
aragonite. It includes common limestone, chalk, and marble.
Called also {calc-spar} and {calcareous spar}.
[1913 Webster]

Note: Argentine is a pearly lamellar variety; aphrite is
foliated or chalklike; dogtooth spar, a form in acute
rhombohedral or scalenohedral crystals; calc-sinter and
calc-tufa are lose or porous varieties formed in
caverns or wet grounds from calcareous deposits; agaric
mineral is a soft, white friable variety of similar
origin; stalaclite and stalagmite are varieties formed
from the drillings in caverns. Iceland spar is a
transparent variety, exhibiting the strong double
refraction of the species, and hence is called doubly
refracting spar.
[1913 Webster]



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英文字典中文字典相關資料:
  • Calcite Mineral | Uses and Properties - Geology. com
    Calcite is a rock-forming mineral with a chemical formula of CaCO 3 It is extremely common and found throughout the world in sedimentary, metamorphic, and igneous rocks
  • Calcite : Properties, Formation, Occurrence and Uses Areas
    Calcite is a mineral that holds a significant place in the world of geology, mineralogy, and various industries due to its distinctive properties and widespread occurrence It is a calcium carbonate mineral with the chemical formula CaCO3 Let’s delve into its definition, composition, chemical formula, and crystal structure
  • Calcite - Mineral Properties, Photos and Occurence
    Calcite is calcium carbonate (CaCO 3) and belongs to trigonal (rhombohedral) crystal system It occurs in a wide variety of crystal habits - rhombohedrons, scalenohedrons, tabular and prismatic crystals and just about everything in between Calcite also exhibits several twinning types
  • Calcite: Mineral information, data and localities.
    Calcite is best recognized by its relatively low Mohs hardness (3) and its high reactivity with even weak acids, such as vinegar, plus its prominent rhombohedral cleavage in most varieties
  • All About Calcite – Uses, Properties, Color, and Worth
    Calcite is defined as a calcium carbonate mineral It is so common it is found all over the world Calcite crystals have been found in over 800 different forms and is a major component in limestone and marble
  • Calcite | Mineral, Rock Crystal | Britannica
    calcite, the most common form of natural calcium carbonate (CaCO 3), a widely distributed mineral known for the beautiful development and great variety of its crystals
  • Calcite: Ultimate Guide (What It Is and Where To Find It)
    Calcite is found in metamorphic, sedimentary, and igneous rocks around the world In short, it’s a mineral that’s found everywhere you look It’s used in a wide range of applications that range from acid reduction, soil treatment, abrasive, pigment, pharmaceutical, and concrete
  • Calcite: The mineral Calcite spar information and pictures
    Calcite is the one of the most common minerals It occurs in a great variety of shapes and colors, and it constitutes a major portion of many of the earth's rocks Calcite belongs to the calcite group of minerals, a group of related carbonates that are isomorphous with one another
  • Calcite (and Aragonite) | Common Minerals
    Aragonite and calcite are ‘polymorphs’, minerals that have the same chemical composition but slightly different crystal structures Both minerals can occur together and are so similar to one another that distinguishing between them is seldom important to anyone but a professional geologist
  • Calcite - an overview | ScienceDirect Topics
    Calcite is a carbonate mineral CaCO3 (Fig 1 13), and the most stable polymorph of calcium carbonate (calcite, aragonite, and vaterite) The color is milky white due to transparency with a yellow tint The luster is vitreous with a white streak The specific gravity of the mineral is 2 71 g cm 3





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