plagioclase

English

Etymology

From plagio- + -clase, after German Plagioklas.

Pronunciation

• (UK) IPA: /ˈpleɪdʒɪəkleɪz/
• (US) IPA: /ˈplædʒɪəkleɪz/

Noun

plagioclase (usually uncountable; plural plagioclases)

1. (mineralogy) Any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium.
   • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 51:

     These crystals are of one of the most abundant minerals in nature – feldspar; furthermore, they are of a particular kind of feldspar rich in the element calcium, termed plagioclase.

Translations

group of feldspar minerals

• Finnish: plagioklaasi (fi)
• German: Plagioklas (de)

• Icelandic: plagíóklas (is) m and n
• Russian: плагиокла́з (ru) (plagiokláz) m 

See also

• Plagioclase on Wikipedia.Wikipedia
• albite
• oligoclase
• andesine
• labradorite
• bytownite
• anorthite
• rock
• mineral
• feldspar