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Category Carbonate mineral
Chemical formula CaMg(CO3)2
Color white, gray to pink
Crystal habit tabular crystals, often with curved faces, also columnar, stalactitic, granular, massive.
Crystal system trigonal - rhombohedral, bar3
Twinning common as simple contact twins
Cleavage rhombohedral cleavage (3 planes)
Fracture brittle - conchoidal
Mohs scale hardness 3.5 to 4
Luster vitreous to 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 unless powdered.
Other characteristics May fluoresce white to pink under UV; triboluminescent.
References [1][2][3][4]
Dolomite from Morocco.

Dolomite (pípè /ˈdɒləmaɪt/)

Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  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. Handbook of Mineralogy
  3. Webmineral
  4. Mindat data