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Quartz Psm Stibnite

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LGM702152

Quartz Psm Stibnite

Ex F. Ritter, Hildesheim, Germany
With Antique Label

Description Tabs

Description
Locality: 
Połom Quarry, Wojcieszów, Złotoryja County, Lower Silesian Voivodeship, Poland
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 8 × 4.5 cm
Largest Crystal: 
5.50cm
Weight: 
255.00gr
Description

A piece of massive quartzite showing not only the imprints of former stibnite crystals and some residual stibiconite, but in some cases the complete crystals replaced by quartz, with stibiconite "rind" (see last 3 pics). An exceptional and rare pseudomorph.

Comes with an amazing old label of F. Ritter. Ritter was a private mineral collector in Hildesheim near Hannover, Germany. He was born around 1890, the year he deceased is not known.
The label means: "Quarz pseudom. n. Antimonit - Kauffung, Katzbach, Schlesien" (Quartz pseudomorph after stibnite - Wojcieszów (Kauffung), Kaczawa (Katzbach), Lower Silesia, Poland).

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Stibnite

Formula: 
Sb2S3
Strunz: 
2.DB.05
Hardness: 
2.0
Streak: 
Lead grey

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