from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A vitreous silicate mineral that is a minor ore of copper, with the chemical formula (Cu2+,Al)2H2Si2O5(OH)4·nH2O.
from the GNU version of the Collaborative International Dictionary of English
- n. A hydrous silicate of copper, occurring massive, of a blue or greenish blue color.
from The Century Dictionary and Cyclopedia
- n. A silicate of the protoxid of copper, of a bluish-green to sky-blue color, apparently produced from the decomposition of copper ores, which it usually accompanies.
- n. Borax: so called in the sixteenth century because it was used in soldering gold.
Sorry, no etymologies found.