Minerals from Mid-Atlantic, USA

Antigorite altering to Asbestos from Cedar Hill Quarry, Lancaster County, Pennsylvania

Antigorite var. Picrolite from Geiger's Quarry, Little Britain Township, Lancaster County, Pennsylvania

Antigorite var. Picrolite from Geiger's Quarry, Little Britain Township, Lancaster County, Pennsylvania

Antigorite var. Picrolite from Cedar Hill Quarry, State Line District, Lancaster County, Pennsylvania

Antigorite var. Picrolite from Cedar Hill Quarry, State Line District, Lancaster County, Pennsylvania

Antigorite var. Picrolite from Cedar Hill Quarry, State Line District, Lancaster County, Pennsylvania

Antigorite var. Picrolite from South Delta, York County, Pennsylvania

Antigorite var. Picrolite from Penn-MD Quarry, near Peach Bottom, Fulton Township, Lancaster County, Pennsylvania

Antigorite var. Picrolite from Delight Quarry, Soldiers' Delight Ridge, Baltimore County, Maryland

Antigorite var. Williamsite from Low's Mine, Maryland

Antigorite var. Williamsite from Low's Mine, Maryland

Antigorite var. Williamsite from Low's Mine, Maryland

Antigorite var. Williamsite from Low's Mine, Maryland

Antigorite var. Williamsite from Low's Mine, Maryland

Antigorite var. Williamsite from (Wood's Chrome Mine?), State Line District, Lancaster County, Pennsylvania

Antigorite var. Williamsite from State Line Chromite Mining District, Lancaster County, Pennsylvania

Antigorite var. Williamsite from Wood's Chrome Mine, State Line District, Lancaster County, Pennsylvania

Antigorite var. Williamsite with Chromite from State Line Chromite Mining District, Lancaster County, Pennsylvania

Apophyllite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Apophyllite from #3 Mine, Cornwall, Lebanon County, Pennsylvania

Apophyllite from #3 Mine, Cornwall, Lebanon County, Pennsylvania

Apophyllite from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite from Falls of French Creek (Iron Mines), St. Peters, Chester County, Pennsylvania

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

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

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

Apophyllite from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite Analcime, Natrolite from No. 3 Mine, Cornwall, Pennsylvania

Apophyllite on Datolite from Millington Quarry, Bernards Township, Somerset County, New Jersey

Apophyllite on Pectolite from Millington Quarry, Bernards Township, Somerset County, New Jersey

Apophyllite on Prehnite, Calcite, Quartz from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Apophyllite with Actinolite inclusions from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite with Actinolite inclusions from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite with Analcime from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

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

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

Apophyllite with Chalcopyrite and Pyrite from Falls of French Creek (Iron Mines), St. Peters, Chester County, Pennsylvania

Apophyllite with golden Calcite from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite with minor Ankerite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Apophyllite with Pyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Apophyllite with Pyrite from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Apophyllite, Analcime, Calcite, Pyrite, Quartz from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Apophyllite, Prehnite, Babingtonite on Quartz from Prospect Park Quarry, Prospect Park, Passaic County, New Jersey

Aragonite from Upper New Street Quarry, Paterson, Passaic County, New Jersey

Aragonite from Thorn Mountain, Pendelton County, West Virginia

Aragonite from Hellertown Cave, Lehigh County, Pennsylvania

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

Aragonite from Alleghany County, Virginia

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

Aragonite (cave formation) from Ziegenfuss Quarry, Allentown, Lehigh County, Pennsylvania

Aragonite (cave formation) from Ziegenfuss Quarry, Allentown, Lehigh County, Pennsylvania

Aragonite with Serpentine and Magnesite from C.K. Williams Quarry, Easton, Northampton County, Pennsylvania

Arsenopyrite from Ecton Mine, Audubon, Montgomery County, Pennsylvania

Artinite and Hydromagnesite from Spring Street Excavation, Staten Island, New York City, New York

Asbestos from Chester County, Pennsylvania

Augite from (attributed to Vanartsdalen's Quarry), Bucks County, Pennsylvania

Autunite from Mitchell County, North Carolina

Autunite from Spruce Pine District, Mitchell County, North Carolina

Autunite from Deshong's Quarry, Leiperville, Delaware County, Pennsylvania

Azurite from Cornwall Iron Mines, Cornwall, Lebanon County, Pennsylvania

Babingtonite from Blueberry Mountain Quarry, Woburn, Middlesex County, Massachusetts

Babingtonite in Calcite from Lower New Street Quarry, Paterson, Passaic County, New Jersey

Babingtonite, Prehnite, Chlorite from Sanders Quarry, Warrenton, Fauquier County, Virginia

Barite from Paga Mine, Cartersville, Bartow County, Georgia

Barite from Cartersville District, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Rockbridge County, Virginia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Cartersville, Bartow County, Georgia

Barite from Portland Cement Quarry, Union Bridge, Maryland

Barite from Cartersville District, Bartow County, Georgia

Barite from Cartersville District, Bartow County, Georgia

Barite from Cartersville District, Bartow County, Georgia

Barite from Hot Springs Barite District, Madison County, North Carolina

Barite from Paga Mine, Cartersville, Bartow County, Georgia

Barite from Cartersville District, Bartow County, Georgia

Barite from Toccoa, Stephens County, Georgia

Barite from Cartersville District, Bartow County, Georgia

Barite from Cartersville District, Bartow County, Georgia

Barite (comb-habit) from Paga Mine, Cartersville, Bartow County, Georgia

Barite with Siderite from clay mines west of Corriganville, Allegany County, Maryland

Bauxite from Georgia

Beraunite from Bachman Mine, Hellertown, Northampton County, Pennsylvania

Beryl from Alexander County, North Carolina

Beryl from Frank Steidler Pegmatite, Valley Township, Chester County, Pennsylvania

Beryl from Delaware County, Pennsylvania

Beryl from Glendale Quarry, Haverford Township, Delaware County, Pennsylvania

Beryl from Avondale Quarry, Delaware County, Pennsylvania

Beryl in Albite from Ray Mica Mine, near Burnsville, Yancey County, North Carolina

Beryl in Albite-Muscovite from Ray Mica Mine, near Burnsville, Yancey County, North Carolina

Beryl in Albite-Muscovite from Ray Mica Mine, near Burnsville, Yancey County, North Carolina

Beryl in Microcline from Deshong's Quarry, Leiperville, Delaware County, Pennsylvania

Beryl in Quartz from Ray Mica Mine, near Burnsville, Yancey County, North Carolina

Beryl in Quartz from Leiperville, Delaware County, Pennsylvania

Beryl in Quartz from Frost Quarry, 2.5 km NW of Coatesville, Chester County, Pennsylvania

Beryl in Quartz-Muscovite from Ray Mica Mine, near Burnsville, Yancey County, North Carolina

Beryl var. Aquamarine from Deshong's Quarry, Leiperville, Delaware County, Pennsylvania

Beryl var. Aquamarine from Deshong's Quarry, Leiperville, Delaware County, Pennsylvania

Beryl var. Aquamarine from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Albite from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Albite from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Aquamarine in Quartz and Albite from Beryl Hill, Amos Cunningham Farm, Due West, Abbeville County, South Carolina

Beryl var. Emerald from Crabtree Mine, Mitchell County, North Carolina

Beryl var. Emerald from Crabtree Mine, Mitchell County, North Carolina

Beryl var. Emerald from Stony Point, Alexander County, North Carolina

Beryl var. Emerald from Crabtree Mine, Spruce Pine, North Carolina

Beryl var. Emerald from Muzo, Colombia

Beryl var. Emerald from Crabtree Emerald Mine, Spruce Pine District, Mitchell County, North Carolina

Beryl var. Emerald from Rist Mine, Stony Point, Alexander County, North Carolina

Beryl var. Emerald from Spruce Pine District, Mitchell County, North Carolina

Beryl var. Emerald from Hiddenite, Alexander County, North Carolina

Beryl var. Emerald from Hiddenite, Alexander County, North Carolina

Beryl var. Emerald from Crabtree Mine, Spruce Pine, Mitchell County, North Carolina

Beryl var. Emerald with Schorl in Quartz from (Rist Mine), Alexander County, North Carolina

Beryl var. Emerald with Schorl Tourmaline from Crabtree Mine, Spruce Pine District, Mitchell County, North Carolina

Beryl var. Emerald with Schorl Tourmaline in Quartz from Crabtree Mine, Spruce Pine District, Mitchell County, North Carolina

Beryl var. Emerald with Schorl Tourmaline in Quartz from Crabtree Mine, Spruce Pine District, Mitchell County, North Carolina

Beryl with Apatite from Spruce Pine, Mitchell County, North Carolina

Biotite from Holmesburg Granite Quarry, Philadelphia, formerly Holmesburg, Pennsylvania

Bismutite and Almandine Garnet from Cashier's Valley, Jackson County, North Carolina

Bornite in Prehnite from Centreville, Virginia

Bornite, Prehnite, Sphalerite, Actinolite var. Byssolite from Fairfax Quarry, 6.4 km west of Centreville, Fairfax County, Virginia

Brannockite and Bavenite from Foote Mine, Kings Mt., Cleveland County, North Carolina (Type Locality for Brannockite)

Brucite from Wood's Chrome Mine, Texas, Lancaster County, Pennsylvania

Brucite from Wood's Chrome Mine, Texas, Lancaster County, Pennsylvania

Brucite from Wood's Chrome Mine, Texas, Lancaster County, Pennsylvania

Brucite from Wood's Chrome Mine, Texas, Lancaster County, Pennsylvania

Brucite from Wood's Chrome Mine, Texas, Lancaster County, Pennsylvania

Brucite from Wood's Chrome Mine, State Line District, Lancaster County, Pennsylvania

Brucite from Blue Mount Serpentine Quarry, White Hall, Baltimore County, Maryland

Brucite from Wood's Chrome Mine, State Line District, Lancaster County, Pennsylvania

Brucite from Texas, State Line District, Lancaster County, Pennsylvania

Brucite from Blue Mountain Quarry, White Hall, Baltimore County, Maryland