"Ward's Phenomena"

Buff, coarse, crystalline “Austin Marble” with shell casts and molds.

Dense and massive.

Hematite-cemented quartz; orthoquartzite.

Represents a Wide Range of Depositional Environments and Rock Textures

Shale is a rich, gray fissile clay rock.

Sale

Chert is a microcrystalline, hard, silica mineral.

Breccia is a sedimentary rock made up of angular rock fragments.

Gray to tan clastic rock made of silt sized particles.

Limestone is a gray calcium carbonate that will fizz with dilute HCl.

Sale

Conglomerate is a sedimentary rock made up rounded quartz pebbles.