We got over 1ā rain this morning; hard and fast. Afterwards I walked one of my fields where Iāve found artifacts, big pieces of granite, etc. This rock caught my eye due to the color. It is light gray and looks like a piece of hardened grout for tile work. On an unglazed tile, it leaves a white mark. I want to try to shape an arrowhead out of it. I lean toward it being sandstone, but it just doesnāt match up completely with any Iāve seen. This is less ācrumblyā and that gray color seems wrong. Any help? Thanks