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dolomite

[ doh-luh-mahyt, dol-uh- ]

noun

  1. a very common mineral, calcium magnesium carbonate, CaMg(CO 3 ) 2 , occurring in crystals and in masses.
  2. a rock consisting essentially or largely of this mineral.


dolomite

/ ˈdɒləˌmaɪt; ˌdɒləˈmɪtɪk /

noun

  1. a white mineral often tinted by impurities, found in sedimentary rocks and veins. It is used in the manufacture of cement and as a building stone (marble). Composition: calcium magnesium carbonate. Formula: CaMg(CO 3 ) 2 . Crystal structure: hexagonal (rhombohedral)
  2. a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


dolomite

/ lə-mīt′,dŏlə-mīt′ /

  1. A gray, pink, or white rhombohedral mineral. Dolomite occurs in curved saddlelike crystals with a pearly to glassy luster. It is a common rock-forming mineral. Chemical formula: CaMg(CO 3 ) 2 .
  2. A sedimentary rock containing more than 50 percent of the mineral dolomite by weight.


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Derived Forms

  • dolomitic, adjective
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Other Words From

  • dol·o·mit·ic [dol-, uh, -, mit, -ik], adjective
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Word History and Origins

Origin of dolomite1

1785–95; < French, named after D. de Dolom ( ieu ) (1750–1801), French mineralogist; -ite 1
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Word History and Origins

Origin of dolomite1

C18: named after Déodat de Dolomieu (1750–1801), French mineralogist
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Example Sentences

Sitting over 300 feet above the confluence of the Wisconsin River and Honey Creek lies Ferry Bluff, a stunning plateau of sandstone and dolomite boasting fantastic river views through forests of ironwood, hackberry, and elm.

Up next are tests out in the field on materials like granite, dolomite, limestone, and basalt.

In the Dolomite region, especially of recent times, climbing has made extraordinary progress.

Another remarkable feature of the Permian rocks is the occurrence of great beds of magnesian limestone, or dolomite.

Mixed with carbonate of lime, it forms magnesian limestone and dolomite.

Came to hills of dolomite, but all the rocks were covered with white lichens (ash-coloured).

Roads all plashy or running with water, oozes full, and rivulets overflowing; rocks of dolomite jutting out here and there.

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Dolní Věstonicedolomite marble