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Quartz Var Eisenkiesel Psm Fossil Archaea Bacteria Gold Fossil Fungi Mycelium

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CLB111248

Quartz Var Eisenkiesel Psm Fossil Archaea Bacteria Gold Fossil Fungi Mycelium

Pseudomorph

Description Tabs

Description
Locality: 
Hohenlimburg Quarry, Oege, Hagen, Arnsberg, North Rhine - Westphalia, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 2.5 × 1.5 cm
Description

A rather nice specimen with good eisenkiesel crystals with the inclusions of fossil stromatolites built from or including threads of bacteria and/or fungi mycelia. Worldwide singular geological phenomenon in the Sauerland area.. Here's an extract from a German publication: "Fossil fungi in iron stromatolites from Warstein (Rhenish Massif, Northwestern Germany) Zeitschrift Facies Verlag Springer Berlin / Heidelberg ISSN 0172-9179 (Print) 1612-4820 (Online) Heft Volume 7, Number 1 / Dezember 1982 DOI 10.1007/BF02537228 Seiten 237-259 Fossil iron stromatolites, formed by fungi, have been found near Warstein, W. Germany. The stromatolitic and massive ferruginous quartzes are always confined to karstic hollow molds of the Devonian "Massenkalk". The few occurrences show that these are chalcedony-quartz-silicifations of mainly ac-oriented, corrosively widened cracks. A mineralization temperature of about 120°C was found by microthermometrical measurements. Druses in ferruginous quartz sometimes carry clear, prismatic to pseudocubic quartzes embedding fungal mycelia. The fungal filaments are generally encrusted with goethite and appear in stromatolitic, massive and patch-like forms. An Oligocene/Miocene age is presumed ... " Newer texts suggest that the fossil inclusions are threads of bacteria archaea.

Mineral Data
What's on the rock

Quartz

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

Eisenkiesel

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0

Gold

Formula: 
Au
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Fungi

Variety Of: 

Organic

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