The quartz block that stands near the crossroads at Glencullen does neither. It is broad, flat-topped, and almost architectural in its proportions, roughly 1.85 metres tall, a metre long, and 0.7 metres wide, sitting on a gentle north-west facing slope at the edge of a golf course with wide views opening out to the north and reasonable sightlines east and west. It narrows slightly towards its base rather than its summit, which inverts the usual expectation entirely. Among Irish standing stones, that combination of blocky form, flat top, and quartz material makes it a genuine outlier.

The stone sits just south of the Glencullen crossroads and is protected as a National Monument in State ownership. Locally it has long been called Queen Mab, a name that carries its own folklore weight, but the Schools Manuscript Collection, a body of local history gathered by Irish schoolchildren in the late 1930s under a national scheme, records a different tradition: that the stone marks the grave of a chief who once lived in the district. References to the site appear in work by Healy (1975) and Turner (1983), though the prehistoric date of the monument itself remains the broader context. Standing stones of this kind are generally understood as Bronze Age markers, erected for purposes that might include burial, boundary-setting, or ritual alignment, though rarely all three at once, and rarely with any certainty. What is clear is that this one was planted with some permanence in mind; there are no packing stones visible around its base, yet it remains firmly grounded.

The stone is accessible from the Glencullen crossroads and its position on the golf course boundary means it can be seen without any significant approach difficulty. The open northward aspect means the light is generally good for much of the day, and the quartz surface responds noticeably to low winter sun. Visitors should look carefully at the proportions from the side as well as the front; the unusually squat and regular profile, so unlike the slender, pointed stones more common across the Irish landscape, is the thing that tends to linger.