conchoidal

• “This is referred to as conchoidal fracture; glass fractures in the same way.”

  Quartz

• “When someone breaks a window the glass shatters in a series of conchoidal breaks—curved fracture lines.”

  Simon & Schuster: A Lincoln Rhyme eBook Boxed Set

• “The conchoidal fractures began on the clean side of the glass and ended on the dirty side.”

  Simon & Schuster: A Lincoln Rhyme eBook Boxed Set

• “When someone breaks a window the glass shatters in a series of conchoidal breaks — curved fracture lines.”

  The Coffin Dancer

• “This one can see by the traces of conchoidal fracture which they all show.”

  Anahuac : or, Mexico and the Mexicans, Ancient and Modern

• “There were built-up fabrics, called _Charlottes_, caky externally, pulpy within; there were also _marangs_, and likewise custards, -- some of the indolent-fluid sort, others firm, in which every stroke of the teaspoon left a smooth, conchoidal surface like the fracture of chalcedony, with here and there”

  The Atlantic Monthly, Volume 05, No. 30, April, 1860

• “At ordinary temperatures ebonite is hard and brittle and breaks with a well-marked conchoidal fracture.”

  On Laboratory Arts

• “The twigs soon become encrusted with a mammelated substance of a red colour more or less deep, nearly transparent, hard, and having a brilliant conchoidal fracture.”

  Field's Chromatography or Treatise on Colours and Pigments as Used by Artists

• “The white flakes do not exhibit the true conchoidal fracture in such perfection elsewhere; nor break off in such delicious morsels, edged with delicate brown.”

  Acadia or, A Month with the Blue Noses

• “Gilsonite or Uintahite — A brittle variety of asphalt, lustrous black in color, with a conchoidal fracture.”

  Tseh So, a Small House Ruin, Chaco Canyon, New Mexico :

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