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Calcite

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LGM893187

Calcite

Ex Bernhard Stürtz, Bonn, Germany
With Antique Label

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Description Tabs

Description
Locality: 
St Andreasberg, Goslar, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 5 × 2.5 cm
Largest Crystal: 
0.70cm
Weight: 
42.00gr
Description

Old-time Sankt Andreasberg calcite specimen with crystals exhibiting an unusual triangular, pseudooctahedral shape, in grey colors.
The district has produced nearly 400 different combinations of crystal forms. The last mines closed in 1910 and specimens may date to the mid-1800s or even earlier.

Comes with nice old pen and ink label. As early as 1872 Bernard Stürtz (1845-1928) had established himself as a mineral dealer in Bonn am Rhein, in a dealership that had been founded by his wife in 1866.
Stürtz was proprietor of what he called his Mineralogisches und palaeontologisches Comptoir ("Mineralogical and paleontological office"), dealing in "minerals, meteorites, rocks, ores, fossils, models, scientific instruments and preparations". His stock was bought out by Dr. A. Krantz very likely in the 1920's.

Mineral Data
What's on the rock

Calcite

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

Seller Information

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Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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+++IMPORTANT+++
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