Locality: Am Roten Berg, Schneeberg–Neustädtel, Saxony, Germany.

Occurrence: Found in the oxidation zone of the deposit associated with quartz on the type specimen. Associated minerals on other samples are: Co- and Ni-bearing mawbyite, cobaltlotharmeyerite, galena, arseniosiderite and plumbogummite.

General appearance: Rosette-like aggregates (up to 2 mm in diameter) composed of tabular crystals up to 0.3 mm.

Physical, chemical and crystallographic properties: Luster: adamantine. Diaphaneity: transparent. Color: brown to red-brown. Streak: light brown. Luminescence: nonfluorescent. Hardness: VHN25 500 kg/mm2, Mohs 4½. Tenacity: brittle. Cleavage: {001} good....

First Page Preview

First page PDF preview
You do not currently have access to this article.