Aventurine

Part of speech: noun

Pronunciation: /əˈvɛn.t͡ʃə.ɹɪn/

Definitions

1. A translucent to opaque variety of quartz that contains sparkling mineral inclusions, typically green, brown, or reddish in color and often used in jewelry and decorative objects
2. A glassy quartz mineral featuring embedded reflective particles that creates a shimmering effect, commonly fashioned into ornamental beads and stones
3. Microcrystalline quartz displaying metallic sparkle from included mica or hematite flecks, prized for decorative and metaphysical applications

Etymology: The sparkle in aventurine comes from an accident in a glassworks. Glassmakers on Murano, the island near Venice, were melting glass when brass or copper filings fell into the molten batch, and the result was a glass full of tiny glittering flecks. The discovery was apparently by chance, and the Italian name for the glass, "avventurino", came from "avventurare", meaning to venture or to make one's luck, in turn from "avventura", chance or adventure. The mineral that later took its name is a quartz with similar glints, but the glass came first. The name passed into French as "aventurine" and then into English. The word's own history is thus a record of risk: a material named for a happy accident, made by people hoping for something new. Its earliest sense was the glass, and the mineral was named afterward by resemblance.