# rhyacolite

> English word · Noun

## Definitions
1. A glassy feldspar found at Mount Somma in Italy.

## Etymology
From Ancient Greek ῥύαξ (rhúax, “stream”) (compare Greek ρυάκι (ryáki)) + -lite.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rhyacolite