One of the mysteries of the English language finally explained.
A cubic oxide and hydroxide of antimony and copper, Cu₂Sb₂(O,OH)₇, that belongs to the stibiconite group, varying in colour from yellowish green to blackish green and found as an alteration product of antimonial sulphide ores.
Mid 19th century. From the name of August F. W. Partz (fl. 1849–97), German-born U.S. assayer and mineralogist + -ite.
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