Knife block made of Nero Assoluto with Orthoceras
Knife block made of Nero Assoluto with Orthoceras
Details
Stopping places | 10 |
Weight | 20.38kg |
Size | Length 81.7 cm | Width 12 cm | Height 36 cm |
serial number | TSSFO.001 |
Knife block made of Nero Assoluto, with high gloss polished ORTHOCERAS on natural stone.
Orthoceras (ancient Greek for "straight horn") is a genus of extinct cephalopods from the group of nautiloids (squid). The length of the horn-like cephalopods varies between one centimeter and 5 meters. Orthoceras lived between 470 and 252 million years ago in the geological period from the Ordovician to the Triassic. With an age of almost half a billion years , these fossils belong to the Paleozoic period and thus to an era that was, for example, long before the dinosaurs. They are the first representatives of the nautiloids to live in the sea with a cylindrical, usually straight shell that was divided into segments. They moved in a horizontal position with a "repulsion nozzle principle" by flowing in and squeezing out the water. There were squid-like monsters up to 5 meters long, with muscular tentacles at the end of the head. The very fast and well-swimming cephalopod was a carnivorous predator. The raw, natural mother rock beautifully showcases the highly polished Orthoceras fossils.
Fossil: | Orthoceras |
Location: | Arfoud, Errachidia Province, Morocco |
Formation: | Upper Jurassic, Oxfordian |
Age: | approx. 300 million years |
The Nero Assoluto natural stone is one of the most elegant of its kind. The black stone is a gabro, a magmatic stone of plutonic origin. Also known as plutonite, these stones are formed deep inside the earth, mainly in the oceanic crust. Among the gabbros, the Nero Assoluto Zimbabwe is a rare plutonic rock in the composition of a gabbro-plutonic stone. The special feature here is that this stone appears almost exclusively in black and is covered with tiny minerals.
Description: Black Assoluto
Type of rock: Basalt
Age: Precambrian (covers the first 4 billion years of Earth’s history)
Rock group: igneous rocks
Appearance: Black, White Clouds, Fine Grained
Location: Mutoka, Zimbabwe
Acid resistance: The stone is resistant to acid attacks within normal limits.
Technical data: Nero Assoluto
Bulk density: 3.04 t/m³
Compressive strength: 228 MPa
Bending strength: 31 MPa
Water absorption: 0.11% by weight
Frost resistance: Frost resistant