Minerals from Mid-Atlantic, USA

Calcite (contact-twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (hollow stalactitic formation) from Florida Lime Co. Quarry, Brooksville, Hernando County, Florida

Calcite (stalactite) from Crystal River Quarry #2, Citrus County, Florida

Calcite (stalactite) from Florida Lime Co. Quarry, Brooksville, Hernando County, Florida

Calcite (twinned crystal) with Pyrite inclusions from H.R. Miller Limestone Quarry, Wabank Road, Millersville, Lancaster County, Pennsylvania

Calcite (twinned crystals) from York Stone Quarry, York County, Pennsylvania

Calcite (twinned crystals) from north of Rome, Floyd County, Georgia

Calcite (twinned crystals) from north of Rome, Floyd County, Georgia

Calcite (twinned crystals) from north of Rome, Floyd County, Georgia

Calcite (twinned crystals) from Delta Carbonate Quarry, York County, Pennsylvania

Calcite (twinned crystals) from York Stone Quarry, York County, Pennsylvania

Calcite (twinned crystals) from Thomasville, York County, Pennsylvania

Calcite (twinned crystals) from Thomasville, York County, Pennsylvania

Calcite (twinned crystals) from Delta Carbonate Quarry, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Delta Carbonate Quarry, York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York, York County, Pennsylvania

Calcite (twinned crystals) from Roosevelt Avenue Quarry (York Stone Quarry), York County, Pennsylvania

Calcite (twinned crystals) from Delta Carbonate Quarry, York, York County, Pennsylvania

Calcite (twinned crystals) with Pyrite inclusions from H.R. Miller Limestone Quarry, Wabank Road, Millersville, Lancaster County, Pennsylvania

Calcite - twinned crystals from Delta Carbonate Quarry, (Roosevelt Avenue Quarry) York, York County, Pennsylvania

Calcite and Dolomite from Phoenixville, Chester County, Pennsylvania

Calcite and Quartz from York Stone Quarry, York County, Pennsylvania

Calcite and Stilbite from Kibblehouse Quarry, Perkiomenville, Montgomery County, Pennsylvania

Calcite in Barbatia Clam Fossil from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite in Fossilized Clam from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite in Fossilized Clam from Florida

Calcite in fossilized clam from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite in fossilized clam from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite in fossilized clam from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite inside Mercenaria fossilized clam from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite inside Mercenaria fossilized clam from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite lining fossilized clam shell from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite lining fossilized clam shell from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite lining fossilized clam shell from Ruck's Pit Quarry, Fort Drum, Okeechobee County, Florida

Calcite on Apophyllite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Calcite on Calcite from Wimpy Material Quarry, Hanover, York County, Pennsylvania

Calcite on Calcite from Staunton Quarry, Augusta County, Virginia

Calcite on Calcite with Actinolite var. Byssolite inclusions from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Calcite on Datolite with Prehnite from Millington Quarry, Bernards Township, Somerset County, New Jersey

Calcite on Prehnite from Gainesville Quarry, Prince William County, Virginia

Calcite on Prehnite from Gainesville Quarry, Prince William County, Virginia

Calcite on Prehnite from Gainesville Quarry, Prince William County, Virginia

Calcite on Prehnite from Gainesville Quarry, Prince William County, Virginia

Calcite on Prehnite from Gainesville Quarry, Prince William County, Virginia

Calcite on Prehnite from Haymarket Quarry, Prince William County, Virginia

Calcite on Prehnite from Haymarket Quarry, Prince William County, Virginia

Calcite on Stilbite from Kibblehouse Quarry, Perkiomenville, Montgomery County, Pennsylvania

Calcite on Stilbite from Kibblehouse Quarry, Perkiomenville, Montgomery County, Pennsylvania

Calcite Twin from Thomasville, Pennsylvania

Calcite twinned crystals from Thomasville Crushed Stone Quarry, Jackson Township, York County, Pennsylvania

Calcite var. Travertine from Wenpt(?) Bros. Quarry, Springtown, Bucks County, Pennsylvania

Calcite with Actinolite inclusions from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Calcite with Actinolite inclusions from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Calcite with Dolomite from Milestone Material Quarry, Oak Hall, Centre County, Pennsylvania

Calcite with Hematite inclusions from Rheems Quarry, Elizabethtown, Lancaster County, Pennsylvania

Calcite with Hematite inclusions from Rheems Quarry, Elizabethtown, Lancaster County, Pennsylvania

Calcite with Limonite coating from Valley Quarry, Cumberland County, Pennsylvania

Calcite with Nontronite from County Road 21 road cut, 9 km south Sugar Grove, Pendleton County, West Virginia

Calcite with Prehnite from Breakwater Construction Site, Red Bank, Monmouth County, New Jersey

Calcite with Pyrite from Schoeneck Quarry, Lancaster County, Pennsylvania

Calcite with Pyrite from Eureka Quarry, Warrington, York County, Pennsylvania

Calcite with Pyrite from Schoeneck Quarry, Lancaster County, Pennsylvania

Calcite with Pyrite inclusions from Showalter Quarry, Blue Ball, Lancaster County, Pennsylvania

Calcite with Stilbite-Ca from Kibblehouse Quarry, Perkiomenville, Montgomery County, Pennsylvania

Calcite with Strontianite from Faylor-Middle Creek Quarry, 3 km WSW of Winfield, Union County, Pennsylvania

Calcite with Todorokite from Medford Quarry, Carroll County, Maryland

Calcite with Todorokite inclusions from Medford Quarry, Carroll County, Maryland

Calcite, Nontronite over filiform Pyrite from County Road 21 road cut, 9 km south Sugar Grove, Pendleton County, West Virginia

Calcite-Aragonite from cave formation, Virginia

Carbon - natural coke from Loraine, Piedmont Basin, Virginia

Carnotite from Old uranium prospects, Mount Pisgah, Jim Thorpe, Carbon County, Pennsylvania

Cassiterite from Irish Creek, Rockbridge County, Virginia

Celestine from Meckley Quarry, Mandata, Pennsylvania

Celestine from Faylor-Middle Creek Quarry, Mandata, Pennsylvania

Celestine from Faylor-Middle Creek Quarry, 3 km WSW of Winfield, Union County, Pennsylvania

Celestine from Bells Mills, Blair County, Pennsylvania (Type Locality for Celestine)

Celestine from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine from Bell's Mill, Bellwood, Blair County, Pennsylvania (Type Locality for Celestine)

Celestine from New Enterprise Quarry, Roaring Spring, Blair County, Pennsylvania

Celestine from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine from Bell's Mill, Bellwood, Blair County, Pennsylvania (Type Locality for Celestine)

Celestine and Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine and Calcite from Faylor-Middle Creek Quarry, 3 km WSW of Winfield, Union County, Pennsylvania

Celestine and Calcite from Hively Gap, Pendleton County, West Virginia

Celestine on Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine on Calcite from Cabin's Quarry, Pendleton County, West Virginia

Celestine on Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine on Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine on Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine on Fluorite from Oley, Pennsylvania

Celestine on Fluorite from Oley Township, Berks County, Pennsylvania

Celestine over Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Celestine with Calcite from Meckley's Quarry, 1.2 km south of Mandata, Northumberland County, Pennsylvania

Cerussite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite from Silver Hill Mine, Davidson County, North Carolina

Cerussite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite and Pyromorphite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite and Quartz in Galena solution cavity from Wheatley Mine, Phoenixville District, Chester County, Pennsylvania

Cerussite in Galena from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite in Galena from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite on etched Galena and Quartz from Southwest Chester County Mine, Phoenixville, Chester County, Pennsylvania

Cerussite on Galena with Pyromorphite from Perkiomen Mine, Montgomery County, Pennsylvania

Cerussite on Galena with Quartz from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite on Quartz from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite on Quartz with Galena from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite with Pyromorphite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Cerussite, Galena, Wulfenite, Quartz from Wheatly Mine, Phoenixville, Chester County, Pennsylvania

Cerussite, Pyromorphite, Wulfenite from Wheatley Mine, Phoenixville, Chester County, Pennsylvania

Chabazite from Kibblehouse Quarry, Perkiomenville, Montgomery County, Pennsylvania

Chabazite from Dyer Quarry, Birdsboro, Berks County, Pennsylvania

Chabazite from Fritz Island Mines, Schuylkill River, 3.2 km south of Reading, Berks County, Pennsylvania

Chabazite var. Haydenite, Biotite, Heulandite var. Beaumontite from Little Falls, near Monkton, 33 km north of Baltimore, Baltimore County, Maryland

Chabazite with Natrolite and Stilbite from Kibblehouse Quarry, Perkiomenville, Montgomery County, Pennsylvania

Chabazite-Ca var. Haydenite with Stilbite from Jones Falls, Baltimore County, Maryland

Chalcedony on Hematite from Fleetwood, Berks County, Pennsylvania

Chalcopyrite from French Creek Mine, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Mine, St. Peters, Pennsylvania

Chalcopyrite from French Creek, Chester County, Pennsylvania

Chalcopyrite from French Creek Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from Jones Mine, Caernarvon Township, Berks County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from Ashe County, North Carolina

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite (hoppered crystals) from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite and Pyrite from French Creek, Chester County, Pennsylvania

Chalcopyrite and Pyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Chalcopyrite in Actinolite var. Byssolite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania