opal
UK: ˈəʊp(ə)l | US: ˈoʊp(ə)l
n. A gemstone consisting of hydrated silica, valued for its iridescent play of colors.
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The word "opal" traces back to Latin opalus, likely borrowed from Greek opallios (ὀπάλλιος), which itself may derive from Sanskrit upala (उपल), meaning "precious stone" or "gem." The term reflects the gem’s ancient trade routes from India to Europe, preserving its phonetic core across languages without morphological division. Its enduring form highlights its status as an unanalyzed loanword with a unified concept.
Her necklace shimmered with an opal that reflected hues of blue and green.
Opals are often cut into cabochons to enhance their natural iridescence.
The miner discovered a rare black opal in the Australian outback.
Ancient Romans believed opals symbolized hope and purity.
Unlike diamonds, opals contain water molecules within their silica structure.