This is a rock that very little is known about – it has several names: Mariam, Arabic Script Stone, and Elephant Skin Jasper.  Some people say it’s Jasper and others say that it is fossil shell fragments in a Hematite Matrix. Some say it’s made up of fossil grass.   For a while we called this the unknown stone and while we now have names to go with it, it still remains the Unknown Stone. It may even be a form of Graptolites which are fossils that appear to be writing on stone and its name is Greek for “stone Writing”.