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Cerussite Baryte Galena & Calcite

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RSL544900

Cerussite Baryte Galena & Calcite

Fluorescent

Description Tabs

Description
Locality: 
Les Dalles Mine, Mibladen, Midelt Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.4 × 7.2 × 3.8 cm
Largest Crystal: 
3.50cm
Description

Aesthetic cyclic twin of cerussite crystals, with a very good size, showing defined faces and edges and complex growths. We can observe groups of tabular lenticular aggregates of barite with a delicate reddish tones, along with gray galena that has been almost completely substituted and covered by nice cerussite crystals. Taking a look under the microscope, cerussite shows long striated prisms terminated by pyramidal faces. Also note several cyclic twins, well defined and spectacular.

Mineral Data
What's on the rock

Cerussite

Formula: 
PbCO3
Strunz: 
5.AB.15
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
3.0 - 3.5
Streak: 
White
Type Locality: 
Vicenza Province, Veneto, Italy

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White