They are slabs of rock cut thin. Thin enough that most are at least translucent. 1 or 2 you can cleanly see through the other side. Going to take some pictures of them, but I haven’t quite figured out how to best light them for effect. I think they really need a backlight of some sort.
Took up my photography class where I left off a month or two or three ago. Go udemy.com! This is the beginning photography class I took mostly just as a refresher. Got the same guy’s advanced class as well as a couple others that he recommended and I thought was interesting. This is the first step. I’ve all but finished this one. Got one section left (on using flashes!) and then a review.
And I should be ready for something else.