Litharge

  

This specimen has a surface layer of pyrochroite upon which are found native lead and red litharge. The word "Monja", found on von Eckermann's label, is an obsolete term used to describe lead oxides - mainly litharge. There are also a few scattered and very small crystals of barite on this specimen. Litharge was widespread in the mine and generally found in close proximity to native lead.

  

  

This speciman has a layer with pyrochroite but in addition to the presence of litharge and native lead it also has some native copper and what appears to be small crystals of yellow mimetite.

  

This specimen has crusts of reddish orange litharge set among crystals of magnesioferrite.

Origin: Långban, Sweden

Harry von Eckermann Collection

Sample size: 5.5 x 5.3 x 2.5 cm (top/2nd row), 3.7 x 2.5 x 1.4 cm (3rd/4th row), 3.8 x 3 x 2 cm (bottom)

 

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Red crystalline litharge on native lead

Origin: Harstigen, Persberg, Värmland, Sweden

Sample size: micromount

 

Red massive litharge with magnesioferrite

Origin: Långban, Värmland, Sweden

Sample size: 2 x 3 cm

 

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Origin: Milltown Quarry, Ashover, Derbyshire, England, UK

Sample size: 1 mm litharge pseudomorph after unnamed (tetragonal Pb oxide hydrate) with fluorite

Owner: Steve Rust

 

Origin: Frongoch Mine (Bron-y-Goch; Llawynwnwch), Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion (Dyfed; Cardiganshire), Wales, UK

Sample size: 0.5 mm crystal on corroded cerussite and quartz (the white waxy mineral has not been identified)

Owner: Steve Rust

 

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