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Plumboferrite

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WND836417

Plumboferrite

Rare Mineral - Type Locality
Classic Locality

Description Tabs

Description
Locality: 
Jakobsberg Mine, Nordmark, Filipstad, Värmland County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.4 × 1.1 cm
Description

A superb specimen of rare Pb-oxide Plumboferrite as grayish-black, metallic layers richly embedded in typical matrix. This fine, old-timed and rare specimen comes from the typelocality, the Jakobsberg Mine in Sweden.  The Jakobsberg mine belongs to the Jakobsberg ore field in the Nordmark district. This "Långban type" deposit was mined for Mn and Fe in 1891–1918. The hematite and hausmannite ores are associated with skarns and veins enriched in Ba, Pb, As, Sb, B, and Be.(mindat)

Ex Robert Jakob Collection

Mineral Data
What's on the rock

Plumboferrite

Formula: 
Pb2Fe3+11-xMn2+xO19-2x, x = 1/3
Strunz: 
4.CC.45
Hardness: 
5.0
Colour: 
Blackish
Streak: 
Red
Type Locality: 
Jakobsberg Mine, Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden
Wendel Minerals

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