SWJ0129 - Premium Grade Clear Quartz Crystal Cluster from classical Arkansas (USA) location Mammites nodosoides Arthricocephalus fuyangensis

Arthricocephalus fuyangensis

Elytridium deplanatum

partially extracting it from the limestone in which it was found

UWS Type spec mass (g): 37 Type spec location: UWB Main mass: R

60 Inch Drotops armatus Middle Devonian Trilobite

SWJ0129 - Premium Grade Clear Quartz Crystal Cluster from classical Arkansas (USA) location Mammites nodosoides Arthricocephalus fuyangensisThis 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