Knife block made of Nero Impala with a black ammonite
Knife block made of Nero Impala with a black ammonite
Details
Stopping places | 12 |
Weight | 25.4kg |
Size | Length 60.5 cm | Width 16.5 cm | Height 24.5 cm |
Serial number | TSSFO.006 |
A large black ammonite still stuck in the parent rock, with a small shell trapped at the back of the parent rock.
The ammonite was carefully carved out of the rock, so the outer shell was left natural, so that the ribbed, original dark outer shell can now be shown. This type of ammonite is usually between 3 and 10 cm in size. However, much larger specimens with a diameter of up to 80 cm have also been found. The larger the ammonite, the rarer it is to find. This one has a diameter of 18.5 cm and the knife block made of Nero Impala has gold plating, in a kind of cave at the back and immediately visible at the front.
Fossil: | Ammonite Goniatitida |
Location: | Nepal |
Formation: | Upper Jurassic, Oxfordian |
Age: | approx. 150 million years |
Total size: | approx. 18.5cm |
Ammonites are an extinct group of cephalopods that lived in the sea. There were around 40,000 different species, the largest of which grew to two meters. This ammonite was found in Madagascar and dates back to the Lower Cretaceous period. This makes them around 150 million years old. It's just unbelievable... Ammonites became extinct around 65 million years ago, around the same time as the dinosaurs. The shape of their shells resembles a spiral tube. The animals only lived in the end of the tube. The remaining chambers were filled with air and made it easier to sink and rise in the water.
Nero Impala impresses at first glance with its elegant, uniform appearance. This natural stone is an anthracite-colored to black natural stone and belongs to the Gabbro rock family. Furthermore, from a petrological point of view, it is a Norite.
Description: Nero Impala dark
Type of rock: Gabbro-Norite
Age: Precambrian (covers the first 4 billion years of Earth’s history)
Appearance: Black, Grey, Medium Grain
Location: Bossporite, Rustenburg, Republic of South Africa
Acid resistance: The stone is resistant to acid attacks within normal limits.
Technical data: Nero Impala
Bulk density: 2.99 t/m³
Compressive strength: 265 MPa
Bending strength: 22 MPa
Water absorption: 0.03% by weight
Frost resistance: Frost resistant