QUARTZ near Gamber (Carroll County), Harold Levey Collection , Jake Slagle photographer

CORUNDUM Near Henryton (Carroll County), Bob Conkwright, Jake Slagle photographer

CALCITE Lehigh Cement Quarry, Union Bridge (Carroll County), Fred Parker Collection, Jake Slagle photographer

CALCITE Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

MALACHITE Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

MALACHITE Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

WULFENITE Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

WULFENITE (Photomicrograph) Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

WULFENITE (Photomicrograph) Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

ALBITE Medford Quarry, Medford (Carroll County), Jake Slagle Collection, Jake Slagle photographer

AURICHALCITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CALCITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CALCITE Medford Quarry, Medford (Carroll County), Jake Slagle Collection, Jake Slagle photographer

CALCITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CALCITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CALCITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CALCITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CALCITE coated with Manganese Oxide Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CARROLLITE-LINNAEITE-SIEGENITE with CHALCOPYRITE Sykesville (Carroll), Bob Eberle Collection, Jake Slagle photographer

CERUSSITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

CERUSSITE Lehigh Cement Quarry, Union Bridge (Carroll County), Jake Slagle Collection, Jake Slagle photographer

CHALCOPYRITE, BORNITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

GALENA (Spinel Twin) Medford Quarry, Medford (Carroll), Bob Eberle Collection, Jake Slagle photographer

LANTHANITE (photmicrograph) Medford Quarry, Medford (Carroll), Fred Parker Collection, Jake Slagle photographer

MARBLE Medford Quarry, Medford (Carroll), Bob Eberle Collection, Jake Slagle photographer

SPHALERITE Medford Quarry, Medford (Carroll), Jake Slagle Collection, Jake Slagle photographer

SPHALERITE PARAMORPH AFTER WURTZITE Medford Quarry (Carroll County), Bob Eberle Collection, Jake Slagle photographer

BROCHANTITE Mineral Hill Mine, Louisville (Carroll County), Jake Slagle Collection, Jake Slagle photographer

MALACHITE (light green) BROCHANTITE (darker green) Mineral Hill Mine, Carroll Co., Md., Jake Slagle Collection, Jake Slagle, Photographer

GAHNITE (photomicrograph) Mineral Hill Mine, Louisville (Carroll), Fred Parker Collection, Jake Slagle photographer

PSEUDOMALACHITE Mineral Hill Mine, Carroll Co., MD, Jake Slagle Collection, Jake Slagle, Photographer

RUTILE Mineral Hill MIne, Carroll Co., Md., Jake Slagle Collection, Jake Slagle, photographer

CARROLLITE (Type Locality) Patapsco Mine (Carroll County), Jake Slagle Collection, Jake Slagle photographer

CARROLLITE (Type Locality) (Pnotomicrograph) Patapsco Mine (Carroll County), Jake Slagle Collection, Jake Slagle photographer

AZURITE Roop Mine (Carroll County), Natural History Society of Maryland Collection, Jake Slagle photographer

MALACHITE Springield Mine, Sykesville (Carroll), Fred Parker Collection, Jake Slagle photographer

GOLD Sykesville (Carroll), Fred Parker Collection, Jake Slagle photographer