Cordierite Hornfels

Image shows a tall gray stone standing in a gravel field surrounded by grass

Detailed Description

Hornfels rocks are metamorphic rocks. They usually start out as sedimentary rocks like sandstone or shale, but then volcanic material pushes up from below and bakes the sedimentary rock into a metamorphic one. Hornfels are known for being exceptionally tough and durable. This one is from Chantilly, VA.

Details

Image Dimensions: 4032 x 3024

Date Taken:

Location Taken: Reston, VA, US