The stone itself is modest, just 1.1 metres tall and square in plan, roughly 0.3 metres on each side. Its angles have been worn smooth over time by cattle rubbing against it, a quiet sign of how these ancient markers have simply continued to exist within the working landscape, absorbed into the daily rhythms of farming without ceremony.

The deliberate placement of quartz on standing stones is a recurring feature in Irish prehistoric monuments, found at passage tombs, stone circles, and standing stones across the country. Quartz was not a practical building material, so its repeated appearance in ritual or funerary contexts suggests it carried symbolic or ceremonial meaning for the communities who erected these stones, though what that meaning was remains open to interpretation. Here at Knockballynoe, on a gently westward-facing slope to the north of Knockballynoe House and about fifty metres east of a small pond, the stone sits in open pasture, its original context long dissolved into the surrounding fields.