Agate Specimen # 168

Description

Chalcedony SiO₂ – a compact variety of microcrystalline quartz. Solid specimen, Crystal and Botryoidal Habit, also features druzy coating of quartz, color variations are most likely due to an iron oxide coating on the microcrystalline quartz surface.

Origin:  North West Arizona (Private Claim)  

Dimensions in cm: 12 x 8.7 x 3.8