The data displayed below were collected during a joint project between the following departments at Montana Tech of The University of Montana: Geophysical Engineering and the Montana Bureau of Mines and Geology. The samples represent sandstones collected and analyzed for their potential use as proppant material.
| Sphericity | 0.59 | 
|---|---|
| Roundness | 0.54 | 
| First Primary | 70 | 
| Second Primary | 140 | 
| Available Documents  View document [CFD_08_SV_14_PRECRUSH2015_8_13_11_51_40.pdf]  View document [CFD_08_SV_14_SPHERE_ROUND_140MESH0742015_12_29_15_49_10.pdf] | |