Versteinerte Holzscheibe | Utah, USA sand stone glass-clear crystals were known to

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

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Size: H81cm W43cm L54cm

the crystals can be very valuable as minerals

Versteinerte Holzscheibe | Utah, USA sand stone glass-clear crystals were known toOrigin: 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