
1) Zinc mineral
Found on
https://www.crosswordclues.com/clue/gordaite

Gordaite is a sulfate mineral composed primarily of hydrous zinc sodium sulfate chloride hydroxide with formula: NaZn4(SO4)(OH)6Cl·6H2O. It was named for the discovery location in the Sierra Gorda district of Chile. Gordaite forms as tabular trigonal crystals. Gordaite first appeared after a research dive in September 1984 from the Juan de Fuca R...
Found on
http://en.wikipedia.org/wiki/Gordaite
No exact match found.