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Meneghinite

MNHN N°196.229

visu_572 infos

FROM : Range of Lauzière, Savoie, France
SIZE : 11.5 x 6.5 x 6 cm

general description

This sample shows meneghinite crystals inside ligthly smoked crystals of quartz. Crystals are prismatic, stick shaped and black. The whole sample measures 11.5 x 6.5 x 6 cm, meneghinite measures on the average 2 cm for 2 mm large.

This specimen belonged to the collection of Mr. Favre who has discovered it in july 1994 in range of Lauzière in Savoie, France. It has been swaped with a collector.

This sample is currently exposed in the Treasure Room, within the Gallery of Mineralogy of the Muséum national d’Histoire naturelle.

Photography: A. Dahmane / Photo Saint-Hilaire,
© MNHN.

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The Species page

Identity card

SPECIE : Meneghinite

HISTORY : Species dedicated to Giuseppe Meneghini (1811-1889), Italian naturalist and geologist who first mentionned this mineral

Species described in 1852 by Emilio Bechi (1822-?), Italian professor of chemistry

Type-locality: Mine Bottino, Toscane, Italy

CHEMICAL FORMULA : Pb13 Cu Sb7 S24
CRYSTAL SYSTEM : Orthorhombic
COLOR : Lead-gray, black
DIAPHANIETY : Opaque
LUSTER : Metallic
STREAK : Bright black
MORPHOLOGY : Primsatic crystals, radial. Massive, fibreous to compact
HARDNESS : 2,5
DENSITY : 6,35

CHEMICAL CLASS : II - Sulfures, sulfosels
GROUP : Meneghinite
STRUNZ CLASS BEFORE 2001 : 2/E.15-40
STRUNZ CLASS AFTER 2001 : 2.HB.05

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