3,00
Ex Tax: 3,00
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Description
Rock Species : Greywacke (sandstone)
Location : Beroun, Czech Republic
Geological Age : Boven Ordovicium
Length : 35 tot 62 mm
Width : 14 tot 22 mm
Hight : 23 tot 30 mm
Greywacke (Sandstone)
The term Greywacke has been used for different types of rock, but it mainly concerns dark older sandstone types. In addition, these sandstones often contain a low content of silicon (including quartz). And they contain a lot of feldspars, micas, chlorite and biotite. The grauwacke sometimes contain fossils, such as the trilobites in these pieces.
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Location : Beroun, Czech Republic
Geological Age : Boven Ordovicium
Length : 35 tot 62 mm
Width : 14 tot 22 mm
Hight : 23 tot 30 mm
Greywacke (Sandstone)
The term Greywacke has been used for different types of rock, but it mainly concerns dark older sandstone types. In addition, these sandstones often contain a low content of silicon (including quartz). And they contain a lot of feldspars, micas, chlorite and biotite. The grauwacke sometimes contain fossils, such as the trilobites in these pieces.