I was out today and after finishing up some appointments I saw the craft store. I randomly was like I have some time. The temptations of the clearance section. Especially since crafting can be expensive. I of course half to explore the store. You never know when inspiration will strike. I see the slate coasters and got to wondering. I can engrave on them. Quick google search said yes, however I didnt look into the exact details. I have done a little exploring on a random rock from my parents yard before. I have also done a lot of engraving on glass as well. The little research that I did mainly had chemical or lasers is what people use. I didn't have either and I am a believer is learning, adapting, and exploring ideas with the tools you have on hand. Its the explore and master potential. I am a believer that it came out pretty good. Especially for being my first time and of course having no idea what to put on it.