from Bob Eberle's Baltimore County Digs:
"During the years since family and career responsibilities replaced his rockhounding agenda, Bob Eberle’s reputation for field collecting prowess has become almost legendary in Maryland mineralogical circles. At the Baltimore Mineral Society's March 18, 2009, meeting, Bob brought in some of his top-shelf finds and shared the stories behind them.
Many were from sites that Bob discovered himself. At some, the opportunity to collect was temporary. His "Harbor Tunnel Digs," for instance, was a former dump consisting largely of dirt, oyster shells, and gravel that had been excavated during the 1960’s construction of Baltimore’s Harbor Tunnel. The debris was later hauled away and dumped on land now covered by a sprawling commercial complex near where Nursery Road meets the Baltimore-Washington Parkway. Amidst it all, Bob extracted some of his finest treasures. They included the magnificent 2 inch by 2 ½ inch almandine garnet at left; a pencil sized apatite crystal extending from a book of mica; and a sheet of mica bearing a flattened schorl tourmaline crystal next to an unflattened almandine garnet crystal in golf club/golf ball configuration.
Not far from Loch Raven is Hunt Valley Mall. One of its entrance roads intersects York Road near Valley View Farms. From amidst the limestone excavated to construct this road, Bob collected pyrite. While pyrite is hardly uncommon in Maryland, a solid eight pound chunk like Bob found is presumably unheard of in these parts. Later on, from the ranks of boulders remaining today piled up near a restaurant where the road ends, he brought in and showed us a large diopside crystal that fluoresced a beautiful sky blue. "
Bob Eberle's Baltimore County Digs. 2009. March 28.