Ecaussine is a geologically distinct stone and thus not classified as either marble or granite, although it may be named "petit granit", "Belgium granite" or "Flanders granite" commercially.

Belgian Granite (Blue Stone): The name „Belgian Granite“ is only used as a trade name.

During his trips to Belgium, he came across another stone, the “little Belgian granite” or “blue Belgian stone” and he decided to grapple with it.