D.C.’s official rock, Potomac bluestone, is a metamorphic material you can actually find all over the city and the focus of ...

KINGSTON — Bandits are prowling the streets of Kingston in a "brazen" bid to boost blocks of historic bluestone from the ground. At least three times in recent weeks, someone has pried the valuable ...

A history-lover was caught by police stealing protected bluestone rocks from a mountain to make his own Stonehenge garden feature. Two men were spotted illegally digging up the 'spiritual' stones - ...