1) Lined with crystals 2) Of a rock cavity 3) Of crystal-lined minerals
Found on
https://www.crosswordclues.com/clue/geodic
geodic Descriptive of a small, hollow, usually rounded rock, lined on the inside with inward-pointing crystals. Such related geodes form when mineral-rich water entering a cavity in a rock undergoes a sudden change in pressure or temperature, causing crystals to form from the solution and line the cavity's walls.
Found on
http://www.wordinfo.info/words/index/info/view_unit/900/6
No exact match found.
