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Duftite On Calcite

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QRI841112

Duftite On Calcite

Former collection Lehmann (CH)
Classic Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 3.1 × 2 cm
Largest Crystal: 
0.60cm
Weight: 
20.00gr
Description

A lovely miniature consisting of a crest of white calcite rhombohedrons, sometimes colorless, perched on top of orange calcite, which at the stem of this 'mushroom' is dusted with lustrous spheroids and platy individuals of bright green duftite crystals. Some tips of the calcite are translucent and partially include duftite crystals, thus contributing to a further esthetic. The original handwritten label (a sticker in German stuck on the plastic plinth) mentioned 'desmin', which is obviously a wrong :)

Dramatic color contrast for a true Tsumeb classic, from the former Lehmann collection (CH). Easily a later 80s-early 90s specimen.

Pasted Label
Mineral Data
What's on the rock

Duftite

Formula: 
PbCu(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Calcite

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

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