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Vanadinite On Goethite & Psilomelane

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PDM860187

Vanadinite On Goethite & Psilomelane

Description Tabs

Description
Locality: 
Taouz, Errachidia Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.4 × 1.9 cm
Weight: 
26.00gr
Description

Lustrous orange-red, tabular hemimorphic crystals of vanadinite, aesthetically isolated on a matrix of black lustrous botryoidal goethite, some as stalactitic growths, associated to rounded groups of dull grey psilomelane. Typical specimen found at the end of the 1980’s.

Acquired in 1990 by Dr. Bob Janssens, specimen #779.

Mineral Data
What's on the rock

Vanadinite

Formula: 
Pb5(VO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Type Locality: 
Zimapán, Mun. de Zimapán, Hidalgo, Mexico

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

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