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Quartz & Goethite Inclusions Psm Fossil Fungi

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CLB528451

Quartz & Goethite Inclusions Psm Fossil Fungi

Pseudomorph

Description Tabs

Description
Locality: 
Diamantina, Minas Gerais, Brazil
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 6.2 × 4 cm
Description

Very interesting pseudomorphs of goethite-inclusions after fossil fungi mycelia. So far those pseudomorphs were only known from the Sauerland area in North Rhine-Westphalia, Germany. Those new Brazilian ones are much bigger, the quartz crystals (second generation on bigger quartz crystal shard) of much better quality.

Described by Rudolf Rykvart.

Mineral Data
What's on the rock

Quartz

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

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

Fungi

Variety Of: 

Organic

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