Vein of Greenstone in Clay Slate from Charlestown, Massachusetts
An Octopus Devours a Ship
Trap Dyke in Sandstone from East Haven, Connecticut
Anthracite in Greywacke Slate from Newport, Rhode Island
Vibrio tritci (nemotode worms)
Granite Veins in a Boulder from Westhampton, Massachusetts
Coal Basin in Ashby Wolds, Leicestershire, England
Strata
