SWJ0129 - Premium Grade Clear Quartz Crystal Cluster from classical Arkansas (USA) location Mammites nodosoides 60 Inch Drotops armatus Middle

60 Inch Drotops armatus Middle Devonian Trilobite

Genus Tylosaurus

Arthricocephalus fuyangensis

and it is completely developed

partially extracting it from the limestone in which it was found

SWJ0129 - Premium Grade Clear Quartz Crystal Cluster from classical Arkansas (USA) location Mammites nodosoides 60 Inch Drotops armatus MiddleThis is a gorgeous clear quartz crystal cluster that was collected from the classical Arkansas location. Top quality cluster. 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. There are many different