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Anorthite vs Undefined - What's the difference?

anorthite | undefined |

As a noun anorthite

is (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.

As an adjective undefined is

lacking a definition or value.

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

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined