Stromeyerite

Stromeyerite was first reported from Tsumeb by Strunz et al. (1958a). Strunz and Tennyson (1967) noted that stromeyerite is rare and the only other silver mineral apart from the native element.

Geier (1973/74) described the occurrence of stromeyerite filling cracks in other sulphide minerals in the second oxidation zone and considered it to be of supergene origin, a view with which Ramdohr (1980) seemed to concur.

Bartelke (1976) noted that stromeyerite also occurs as dark steel-grey inclusions in sulphide ore.

Pinch and Wilson (1977) added that stromeyerite is only visible under the ore microscope. However, Keller (1984) pointed out that, very rarely, it occurs as tiny needles growing into decomposition cavities in sulphide.