Priscacara serrata and Phareodus testis | Green River Formation | Wyoming cube Smoky Quartz is a striking

Smoky Quartz is a striking variety of Quartz mineral known for its translucent brown to nearly black coloration

a crystalline form of aluminum oxide

with short limbs adapted for supporting heavy weight and moving efficiently through snow and rough terrain

You can get creative and try other tools such as a scalpel

This Columbian Mammoth molar slice came from the coastal region of South Carolina

Priscacara serrata and Phareodus testis | Green River Formation | Wyoming cube Smoky Quartz is a strikingPriscacara serrata and Phareodus testis Eocene (51. 98 Million Years Ago) Private Quarry, Green River Formation, Wyoming, USA Preparation by Jim Tynsky Obtained from the collection of Dr. William Rieger Plate approx. size: 15" x 12. 75" x 1. 25" Priscacara approx. size: 7. 5" Phareodus approx. size: 5. 5" Order Perciformes Family Moronidae C. liops, P. serrata, H. hypsacantha, and undescribed Priscacara & Hypsiprisca species P. serrata is perhaps the