different between columbium vs pegmatite

columbium

English

Etymology

Columbia +? -ium, in allusion to the United States.

Noun

columbium (usually uncountable, plural columbiums)

  1. (obsolete) A former name of niobium.

Derived terms

  • columbite
  • coltan

Translations

columbium From the web:

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pegmatite

English

Noun

pegmatite (plural pegmatites)

  1. A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica.

Derived terms

See also

  • feldspar
  • granite
  • quartz

Italian

Noun

pegmatite f (plural pegmatiti)

  1. (geology) pegmatite

pegmatite From the web:

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  • what is pegmatite dike
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