PKMT133 Paprok Mine Tourmaline 20 This is a polished specimen

This is a polished specimen featuring colorful grey blue fading to purple

Though these fossils are almost always simply called Orthoceras

The opposite has a brighter green cap with basal termination

the rocks and landforms of Wisconsin reveal a captivating geologic story that spans 2

PKMT133 Paprok Mine Tourmaline 20 This is a polished specimenThe Paprok mine in Afghanistan is in the mountains of a mineralogically rich pegmatite field. Situated northeast of Jalalabad in the Nuristan Province, this area is possibly the largest tourmaline deposit in Afghanistan, and frequently produces bicolor or 'watermelon' tourmalines. This Watermelon Tourmaline crystal has a light pink center surrounded by a pale green outer ring, fading to solely green on one end. It has beautiful vertical striations and