• Definition for "orthoclastic"
    • Geology Having right-angled cleavage.
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  • Sentence for "orthoclastic"
    • Both plagioclastic and orthoclastic aventurine occur…
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orthoclastic definition

  • adjective:
    • Geology Having right-angled cleavage.
    • Having cleavage airplanes at right sides; such as orthoclase.
    • Breaking in instructions at correct angles to one another; -- said of this monoclinic feldspars.
  • others:
    • Characterized by cleavages at right angles to one another: said of particular species of the feldspar group, especially orthoclase; with respect to such types, or especially to orthoclase.
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