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Stolzite

MNHN N°202.227

visu_50 infos

FROM : Sainte-Lucie mine, Saint Léger de Peyre, Lozère, France
SIZE : 93 x 60 x 25 mm

general description

Tabulars crystals are gray. Transparent on sliver, they show a frosted aspect on their surfaces, that make them dull whithout lustre. They measure on the average 30 mm length for 20 mm, their thickness is near 5 mm. They are imbricated each other.

This sample of stolzite comes from Sainte-Lucie mine in Lozère, France. It was acquired thanks to support from Total. It is kept in the storage rooms of the collections of the Muséum national d’Histoire naturelle (i.e., not yet displayed to the public).

Photography: Louis-Dominique Bayle, © MNHN.

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The Species page

Identity card

SPECIE : Stolzite

HISTORY : Species dedicated to Docteur Joseph Alexis Stolz (1803-1896), who provided the first sample

Species first described in 1845 by Wilhelm Karl Ritter von Haidinger (1795-1871), Austrain geologist and mineralogist

Type-locality: Zinnwald, Bohemia, Czech Republic

CHEMICAL FORMULA : Pb WO4
CRYSTAL SYSTEM : Tetragonal
COLOR : Reddish brown, yellowish, gray
DIAPHANIETY : Translucent
LUSTER : Resineous
STREAK : White
MORPHOLOGY : Crystals often bipyramidal, seldomly tabular
HARDNESS : 2,5-3,0
DENSITY : 8,408

CHEMICAL CLASS : VI - Sulfates, chromates,
GROUP : Scheelite
STRUNZ CLASS BEFORE 2001 : 5/G.01-40
STRUNZ CLASS AFTER 2001 : 7.GA.05

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