Crystal System: Orthorhombic
Status of Occurrence: Unconfirmed Occurrence
Distribution: Rare
Chemical Composition: Sodium iron sulphate hydroxide hydrate
Chemical Formula: Na2Fe3+(SO4)2OH.3H2O
Method(s) of Verification: not known

Geological Context:

  • Supergene: post-mining oxidation & weathering deposits
Introduction: sideronatrite is a secondary sulphate mineral typically formed in post-mining environments.
Occurrence in Wales: the late K. Savage reported sideronatrite from Wales. Unfortunately no specific location details were provided and no specimens are known. Anyone with further information or specimens which may relate to this report are encouraged to contact the National Museum of Wales.

Key Localities:

There are no key localities for this specimen.


There are no references for this specimen.