It is a bullaun stone, a type of ancient stone with one or more hollows ground or worn into its surface, found across Ireland and most commonly associated with early ecclesiastical sites. What makes this one worth pausing over is the precision of its shaping: a steep-sided central bowl, roughly 58 centimetres long, 42 wide, and 25 deep, with a notably flat base, the kind of deliberate geometry that separates intentional carving from the random pitting of weathered rock. Alongside that main hollow, a shallower semicircular depression sits adjoining it, like a secondary vessel annexed to the first.

The boulder itself is conglomerate, a sedimentary rock made up of rounded fragments cemented together, and it measures approximately 86 centimetres by 76 by 42. One face appears to be split, suggesting either age-related fracture or some older damage. The stone sits adjacent to the Dominican Friary at the south-west end of the village, a location that places it within one of the more historically layered corners of County Tipperary. Lorrha has early medieval monastic origins, and bullaun stones are generally understood to belong to that tradition, their hollows possibly used for grinding, for holding water used in ritual or blessing, or for purposes that remain genuinely unclear. The convergence of a pre-Norman bullaun with the later fabric of a friary and a parish church is less a coincidence than a pattern: sacred sites in Ireland tend to accumulate across centuries, each generation finding reason to build where something already stood.