My brother got his MS in Geophysics at PSU; he critiqued the rock and landforms in my paintings lol. Many people know John Ruskin as perhaps the preeminent art critic/historian of the 19th century, but he was also a decent artist in his own right. As geology guy, you might like his,
Study of Gneiss Rock, Glenfinlas:
![](https://ka-perseus-images.s3.amazonaws.com/916f00121591acd7f105429bff28d7ab60edea89.jpg)