Composition: Pb4Zn2(SO4)(SiO4)(Si2O7)
Crystal System : Monoclinic
Colours: Colourless, pale-yellow
Lustre : Greasy
Hardness (H) : 4
Specific Gravity (S.G) : 6.07
Year of Discovery: 1978
IMA Number: 1978-029
IMA Status: Approved
Discovered By: Clive Queit (South African dealer)
Named for: Discoverer
References: Keller et al. (1979a)

Tsumeb is the Type Locality


Extremely rare. Second oxidation zone.


  • Supergene
  • 2nd Oxidation Zone

Paragenetic and General Notes

On the type material, queitite occurs on corroded galena/tennantite/sphalerite ore, with willemite, alamosite, melanotekite, leadhillite, larsenite, and quartz. As pale-yellow to colourless elongate crystals to 10 x 3 x 0.5 mm (Keller et al., 1979a).

Gebhard (1999) records somewhat larger crystals - to 20 mm.