aventurine Meaning, Definition & Usage

  1. noun a translucent quartz spangled with bits of mica or other minerals
    sunstone.

WordNet

A*ven"tu*rine noun
Etymology
F. aventurine: cf. It. avventurino.
Definitions
  1. A kind of glass, containing gold-colored spangles. It was produced in the first place by the accidental (par aventure) dropping of some brass filings into a pot of melted glass.
  2. (Min.) A variety of translucent quartz, spangled throughout with scales of yellow mica.

Webster 1913