The Collaborative International Dictionary
Voltzite
Voltzite \Voltz"ite\, n. [So named in honor of Voltz, a French engineer.] (Min.) An oxysulphide of lead occurring in implanted spherical globules of a yellowish or brownish color; -- called also voltzine.
Wiktionary
voltzite
n. (context mineralogy English) An oxysulfide of lead occurring in implanted spherical globules of a yellowish or brownish colour.