from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mineral consisting of a hydrous nickel arsenate, chemical formula Ni3(AsO4)2·8H2O, with an apple-green colour.
from The Century Dictionary and Cyclopedia
- n. A hydrous arseniate of nickel, a massive or earthy mineral of an apple-green color, often resulting from the alteration of arsenides of nickel.
Annaberg-Buchholz in Germany, where it can be found, and -ite. (Wiktionary)