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[prop-uh-lahyt] /ˈprɒp əˌlaɪt/
noun, Petrography.
a hydrothermally altered andesite or allied rock containing secondary minerals, as calcite, chlorite, serpentine, or epidote.
Origin of propylite
First recorded in 1867; propyl + -ite1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for propylite
Historical Examples
  • These consisted of rocks moderately rich in silica, and are grouped under the heads of propylite and andesite.

British Dictionary definitions for propylite


(geology) an altered andesite or similar rock containing calcite, chlorite, etc, produced by the action of hot water
Word Origin
C20: from propylon (see propylaeum) + -ite1; so named because it is associated with the start of the Tertiary volcanic era
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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