propylite

[ prop-uh-lahyt ]

noun

, Petrography.

1. a hydrothermally altered andesite or allied rock containing secondary minerals, as calcite, chlorite, serpentine, or epidote.

propylite

/ ˈprɒpɪˌlaɪt /

noun

1. geology an altered andesite or similar rock containing calcite, chlorite, etc, produced by the action of hot water

Word History and Origins

Origin of propylite¹

First recorded in 1867; propyl + -ite ¹

Word History and Origins

Origin of propylite¹

C20: from propylon (see propylaeum ) + -ite ¹; so named because it is associated with the start of the Tertiary volcanic era

Example Sentences

These consisted of rocks moderately rich in silica, and are grouped under the heads of propylite and andesite.

From Project Gutenberg