Mineral Database (Saesneg yn unig)

Mineral Database (Saesneg yn unig)
Mineralogy of Wales

Stannite

Crystal System: Tetragonal
Formula: Cu2FeSnS4
Status of Occurrence: Confirmed Occurrence
Distribution: Rare
Chemical Composition: Copper iron tin sulphide
Method(s) of Verification: inclusions in gold grains from near Narberth identified by electron microprobe analysis.
Introduction: a rare mineral in tin-bearing hydrothermal vein deposits.
Occurrence in Wales: isolated grains of arsenopyrite, cobaltite and stannite are reported by Norton et al. (2000) as inclusions in gold grains panned from a stream north-east of Narberth, Pembrokeshire.
Key Localities:
There are no key localities for this specimen.
References:
  • Norton, G.E., Cooper, D.C., Davies, J.R. and Cornwell, J.D., 2000 Evidence for gold mineralisation in the Lower Palaeozoic and Precambrian rocks of south-west Wales.  BGS Research Report RR/00/10. DTI Minerals Programme Publication No. 5.