Gemstone found in hot springs

OPAL

"Here’s a helpful hint for your crossword clue: "This iridescent stone is often associated with Australia and forms in silica-rich environments." This hint: - Nudges the solver toward the answer by mentioning key characteristics (iridescence, Australia, silica). - Avoids repeating the original clue or giving away the answer directly.

The clue "Gemstone found in hot springs" leads to the answer "OPAL" through a combination of direct definition and geological context. Definition: "Gemstone" directly refers to opal, which is a well-known precious stone.