Slates and Shale Stones, especially those from India, are unique edible earths prized for their layered textures and vibrant natural colors—including red, pink, white, yellow, black, and occasionally green. These stones are typically sawn into various shapes, with pencils being the most popular form, alongside cubes and bars. Known for their firm yet crumbly texture, Indian slates offer a satisfying crunch combined with earthy, mineral-rich flavors that can range from smooth and mild to slightly metallic or smoky. Their striking colors and distinctive textures make them a favorite among geophagy enthusiasts who appreciate both the taste and the tactile experience of these natural, artisanal stones.