Saturday

Rhyolitic Magma

 
The Sweetwater Road Rhyolite Intrusion from above 
The Cut
        



Ancient Tool for Cutting or Skinning

Deconstructed sections of Magma from the Sweetwater Road Rhyolite Intrusion, Ruby River, Montana. Its thick viscosity when erupting causes it to exhibit banded flow lines. Also known as Montana Wonderstone.