- Photo
- Lidar Scan
- ERA: Paleozoic
- Period: Mississippian (wiki, alpha)
- Epoch: Early
- Formation: Arkansas Novaculite
- Age: 358-346 million years ago
- Lithology: Chert
- Original location: 34.430218,-93.243680
- Donor organization: Dan Whetstone Company
- Donor contact: Dan and Steve Kirschmann
- Financial support:
- Mac and Karen McGilvery
- Jeff and Suzy Hall
- Epoch Consulting (Matt Boyce)
- Steve and Lisa Milligan
- MacNote: Sample selected to illustrate color variation within the novaculite. There are subtle variations in grain size the effect the economic value as well as the best application of the various types from standard sharpening to high polish finishing.