08255 - Top Beautiful 1.73 in Quartz Crystals - Imilchil (Morocco) Spinosaurus Belgium (1)
Yard notes & kiln story
Description
Belgium (1)
The vertebrae are still preserved in a state of anatomical semi-articulation (7 vertebrae bones)
Halisaurus arambourgi
Rare and beautiful unidentified asaphids trilobites
Great collection of 14 specimens
08255 - Top Beautiful 1.73 in Quartz Crystals - Imilchil (Morocco) Spinosaurus Belgium (1)Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 siliconoxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.