DenverDwight:
Broken Igneous Cobble
DenverDwight:
Volcanic Breccia Cobble - Mudflow?
DenverDwight:
Green Striped Cobble - Face View
DenverDwight:
Fascinating Conglomerate Cobble - about 3" long
DenverDwight:
Tan sandstone cobble
DenverDwight:
Green Striped Cobble - Edge View
DenverDwight:
Green Cobble mac2
DenverDwight:
Interesting Cobble
DenverDwight:
Castile formation handsample
DenverDwight:
Castile Formation
DenverDwight:
Crinoid stem hash
DenverDwight:
Brachiopod limestone, Pennsylvanian, Colorado
DenverDwight:
Cretaceous trace fossils
DenverDwight:
Crinoid segment and bryozoan(?)
DenverDwight:
Brachiopod limestone, Pennsylvanian, Colorado
DenverDwight:
Crinoid arm tip
DenverDwight:
Pegmatite specimen. About 6 inches across.