Tachylyte definition

tăkə-līt
A brown, black, or green volcanic glass formed from basaltic magma and often found along the edges of dikes, sills or volcanic flows, where rock usually forms first by contact with the cooler surrounding rock.
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A kind of dark-colored, basaltic volcanic glass.
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(geology) A black, vitreous basalt of volcanic origin.
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Alternative Forms

Alternative Form of tachylyte - tachylite

Other Word Forms

Noun

Singular:
tachylyte
Plural:
tachylytes

Origin of tachylyte

  • German Tachylyt Greek takhu- tachy- Greek lutos soluble (from lūein to loosen leu- in Indo-European roots)

    From American Heritage Dictionary of the English Language, 5th Edition