Versteinerte Holzscheibe | Utah, USA sand stone While the caudal fin has

While the caudal fin has been expertly restored to provide a complete depiction

Versteinertes Holz hat eine Härte von 7 auf der Mohs-Härteskala

glass-clear crystals were known to the ancient Greeks as krystallos - hence the name crystal or more commonly rock crystal applied to this variety

bewahren die letzten Augenblicke der Herrschaft der Dinosaurier auf einer weiten Küstenebene

sometimes even the cell structure can be determined

Versteinerte Holzscheibe | Utah, USA sand stone While the caudal fin hasOrigin: Utah, USA Age: Triassic, 220 million years Size: H70cm W90cm D4cm Weight: 40 kg Description: This specimen has been cut and polished to show natural voids, preservation of some growth rings and a rich marbling of colors with pink tones typical of this region. Additional information: Petrified woods, fossils formed by the penetration of minerals into the spaces between and within the cells of natural wood, usually silicon dioxide (SiO 2 ) or