Measurements: 58 x 54 x 30 mm
The small, creamish-coloured, botryoidal crystals on some surfaces, are unknown to us. There are bits of reddish clay attached.
Weight of Specimen: 134.6 g
Chemical Composition: PbZn(VO4)(OH)
Hardness on Mohs Scale: 3 - 3½
Aukas mine, Grootfontein District,
Specimen Code: NTS 023
US $ 85