"Freeze-Dried Specimens"

Conglomerate is a sedimentary rock made up rounded quartz pebbles.

4 pounds of limestone chips supplied in a box.

White, mature, friable.

Red clastic rock composed of sand sized particles and hematite.

Sale

Scoria is a dark-colored rock formed from lava with a high gas content.

Represents a Wide Range of Depositional Environments and Rock Textures

Indicative of Various Sedimentary Formation Processes

Earthy, porous calcareous tufa.

Buff-colored, coarse, detrital limestone, with cemented shell fragments.

Shale is a rich, gray fissile clay rock.

Sale