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Anorthite vs Dmisteinbergite - What's the difference?

anorthite | dmisteinbergite |

In mineral terms the difference between anorthite and dmisteinbergite

is that anorthite is a plagioclase feldspar, the final member of the Albite-Anorthite solid solution series. Anorthite is very rare on Earth, but abundant in moon rocks. This is because Anorthite weathers rapidly to clay minerals under atmospheric conditions. Good crystals have been found in lava-digested limestone blocks erupted from Mount Vesuvius while dmisteinbergite is a colourless mineral, a hexagonal polymorph of anorthite, with the chemical formula CaAl2Si2O8.

anorthite

English

(encyclopedic)

Noun

(en noun)
  • (mineral) A plagioclase feldspar, the final member of the Albite-Anorthite solid solution series. Anorthite is very rare on Earth, but abundant in moon rocks. This is because Anorthite weathers rapidly to clay minerals under atmospheric conditions. Good crystals have been found in lava-digested limestone blocks erupted from Mount Vesuvius.
    • * Chemical composition: Calcium aluminum silicate, CaAlSi_3O_8 * Physical properties: ** Moh's Hardness: 6.0 ** Specific gravity: 2.76 ** Color: Shades of gray, often with a blue, purple, or green cast ** Luster: glassy ** Fracture: conchoidal ** Cleavage: two good at about 94ยบ to each other ** Habit: Triclinic - pinacoidal. Crystals are well developed, forming massive clumps, and are both twinned and striated.

    See also

    * feldspar * plagioclase

    dmisteinbergite

    English

    Noun

    (-)
  • (mineral) A colourless mineral, a hexagonal polymorph of anorthite, with the chemical formula CaAl2Si2O8.
  • * 2001 , William Alexander Deer, ?Robert Andrew Howie, ?J. Zussman, Rock-forming Minerals: Feldspars (volume 4A, page 654)
    • Chesnokov et al. also reported from the same locality dmisteinbergite , a natural hexagonal polymorph of anorthite.
    English eponyms