Composition: Zn3(AsO3)2
Crystal System : Orthorhombic
Colours: Pale-blue, pale-green, ocean-green
Lustre : Adamantine, vitreous
Hardness (H) : 5.0-5.5
Specific Gravity (S.G) : 4.27
Year of Discovery: 1958
IMA Number: 1958
IMA Status: Grandfathered
Discovered By: Bruno H. Geier (Tsumeb mineralogist)
Named for: Willy Reiner (Tsumeb chemist)

Tsumeb is the Type Locality


Very rare. Second and third oxidation zones.


  • Supergene
  • 2nd Oxidation Zone
  • 3rd Oxidation Zone

Notable Finds

Reinerite (type specimen) was discovered approximately 10 m below 29 Level, in the second oxidation zone in 1958. In 1977, Reinerite was again found in the second oxidation zone by Georg Gebhard, with a new mineral that would later be named gebhardite. Excellent crystals of reinerite were found in 1992 in the so-called "Zinc Pocket" on 44 Level, in the third oxidation zone (Gebhard, 1999).

Paragenetic and General Notes

Reinerite was the first naturally occurring zinc arsenite to be described from Tsumeb (Geier and Weber, 1958).

The type assemblage comprised reinerite crystals on a chalcocite / bornite matrix, with willemite, smithsonite, hydrozincite, hemimorphite, adamite, and olivenite.

In the third oxidation zone, the 1992 discovery on 44 Level, the so-called "Zinc Pocket", produced colourful combinations of sea-green reinerite with orange legrandite, white leiteite, white adamite, pink smithsonite, and ivory paradamite.