kupfferite

[Named after the Ru ian physicist Kupffer; suff. -ite ( Min.).] Min.: A monoclinic mineral with the composition of Enstatite (q. v.), represented by the formula MgO, SiO2. Occurs in aggregations of prisms, like Actinolite. Hardne , 5.5; specific gravity, 3.08; luster, vitreous; color, emerald green; translucent in thin fragments. Dana calls it an enstatite-hornblende colored by chrome. Found near Miask, Ilmen Mountains, and Sanarka, Urals. IMG:content-0292.png:[blocks in formation] kynd which are like plates of silver; the iris is golden; the back with golden spots; there are four black spots near the dorsal fin, while the pectorals reflect gold and are edged with red; the other fins yellow. arched with black.