These are small lumps of Italian green earth sourced from Mount Baldo in Italy.
Perfect for expressive drawing and will sit very well against the reddish/pinkish drawing stones.
It is one of the softer rocks for drawing and smudges quite easily although using an edge it is possible to get a fine line, a cool, light green in hue.
Small pieces in a 100ml glass jar.
I have developed a great fondness for green earths recently, I used to think what is the point of these low power, cool, greens then I added them to my palette for portrait painting and I saw the light...such wonderful fleshy greys!