ANGLESITE (Photomicrograph) Mountain View Lead Mine (Frederick County), Jake Slagle Collection, Jake Slagle photographer

BARYTE Mountain View Lead Mine (Frederick County), Natural History Society of Maryland Collection, Jake Slagle photographer

SPALERITE (photomicrograph) Mountain View Lead Mine (Frederick County), Jake Slagle Collection, Jake Slagle photographer

SMITHSONITE(photmicrograph) Mountain View Lead Mine (Frederick County), Jake Slagle Collection, Jake Slagle Photographer

QUARTZ (var.) SMOKY QUARTZ near Burkittsville (Frederick County), Fred Parker Collection, Jake Slagle photographer

QUARTZ (Faden) near Burkittsville (Frederick County), Fred Parker Collection, Jake Slagle photographer

AURICHALCITE Farmers Cooperative Limestone Quarry (Frederick County), Collected by Dr. William Cordua Jake Slagle Collection, Jake Slagle photographer

CHALCOPYRITE Farmers Cooperative Limestone Quarry (Frederick County), Collected by Dr. William Cordua Jake Slagle Collection, Jake Slagle photographer

HEMIMORPHITE (photomicrograph) Farmers Cooperative Limestone Quarry (Frederick County), Jake Slagle Collection, Jake Slagle photographer

MALACHITE with GOETHITE ps Chalcopyrite Farmers Cooperative Limestone Quarry (Frederick County), Collected by Dr. William Cordua Jake Slagle Collection, Jake Slagle photographer

SMITHSONITE(photmicrograph) Farmers Cooperative Limestone Quarry (Frederick County), Jake Slagle Collection, Jake Slagle photographer

SPHALERITE Farmers Cooperative Limestone Quarry (Frederick County), Collected by Dr. William Cordua Jake Slagle Collection, Jake Slagle photographer

MALACHITE Liberty Mine Frederick County (Frederick County), Fred Parker Collection, Jake Slagle photographer

Celestine on Calcite: Mellott Quarry, Beaver Branch, Frederick Co., Maryland, Collected by Fred Parker, Jake Slagle Collection, Jake Slagle Photogrpaher

Calcite: New London Quarry, Frederick Co., Collection of Jake Slagle, Jake Slagle Photographer

BORNITE Repp Mine near Union Bridge (Frederick County), Jake Slagle Collection, Jake Slagle photographer