Dolomite

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Dolomite
Dolomite-Magnésite- Navarre.jpg
Dolomite and magnesite – Spain
General
Category Carbonate mineral
Formula
(repeating unit)
(CaMg)(CO3)2
Strunz classification 05.AB.10
Crystal symmetry Trigonal rhombohedral, 3
Unit cell a = 4.8012(1) Å, c = 16.002 Å; Z = 3
Identification
Color White, gray tae pink
Crystal habit Tabular crystals, aften wi curved faces, columnar, stalactitic, granular, massive.
Crystal seestem Trigonal
Twinnin Common as simple contact twins
Cleavage Perfect on {1011}, rhombohedral cleavage
Fractur Conchoidal
Tenacity Brickle
Mohs scale hairdness 3.5 tae 4
Luster Vitreous tae pearly
Streak White
Specific gravity 2.84–2.86
Optical properties Uniaxial (-)
Refractive index nω = 1.679–1.681 nε = 1.500
Birefringence δ = 0.179–0.181
Solubility Poorly soluble in dilute HCl
Ither characteristics Mey fluoresce white tae pink unner UV; triboluminescent.
References [1][2][3][4]

Dolomite Lua error in package.lua at line 80: module 'Module:IPAc-en/data' not found. is a carbonate mineral componed o calcium magnesium carbonate CaMg(CO3)2. The wird dolomite is forbye uised for tae describe the sedimentary carbonate rock, that is componed predominantly o the mineral dolomite (itherwise kent as dolostone).

References[eedit | eedit soorce]

  1. Deer, W. A., R. A. Howie and J. Zussman (1966) An Introduction to the Rock Forming Minerals, Longman, pp. 489–493. ISBN 0-582-44210-9.
  2. Dolomite. Handbook of Mineralogy. (PDF) . Retrieved on 2011-10-10.
  3. Dolomite. Webmineral. Retrieved on 2011-10-10.
  4. Dolomite. Mindat.org. Retrieved on 2011-10-10.