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Erythrite With Mixite

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LGM734535

Erythrite With Mixite

Ex Alex Franz, Düsseldorf, Germany
With Antique Label

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Description Tabs

Description
Locality: 
Wittichen, Schenkenzell, Baden-Württemberg, Germany
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 4.5 × 1.5 cm
Weight: 
44.00gr
Description

Specimen consisting mainly of green mixite and rose-colored erythrite ("Kobaltblüte"), from classic Wittichen, Black Forest, Germany mining area.

Comes with old Alex Franz label and corresponding number sticker. He was born in Göttingen in 1906 and was trained in optics at the Technical School in Jena, receiving his Master's Degree in 1929. He then joined his family's optics business in Hannover, managing it with the help of his brother in his early years, and thereafter by himself.
Franz became interested in minerals at an early age, and built a personal collection which unfortunately was lost during the chaos of the war years. Nevertheless, he built up a substantial new mineral collection following the war.
Franz died in Meerbusch, near Düsseldorf, on October 25, 2000. His collection was purchased by the mineral dealer Christian Rewitzer in Furth im Wald, and the specimens were then sold off individually.

Mineral Data
What's on the rock

Erythrite

Formula: 
Co3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
1.5 - 2.5
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

Mixite

Formula: 
BiCu6(AsO4)3(OH)6·3H2O
Strunz: 
8.DL.15
Crystal System: 
Hexagonal
Hardness: 
3.0 - 4.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Seller Information

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+++IMPORTANT+++
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