$900.00 €764 £650.00 approx. This specimen is priced in US dollars, all other prices are approximate.
Two excellent mirror bright jet-black cubic crystals of Bixbyite measuring to 6 mm with sawtooth corner and edge modifications associated with gem clear Topaz crystals. The Bixbyite crystals have a brilliant metallic lustre and very pleasingly contrast against the snow-white Rhyolite matrix. This is a superb example of Bixbyite, a manganese iron oxide, especially because of their wonderfully modified edges and an excellent subject for crystallographic study.