"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

Gray to tan clastic rock made of silt sized particles.

Conglomerate is a sedimentary rock made up rounded quartz pebbles.

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.

Green shale which contains approximately 85% Illite. Impurities may include other clay minerals, such as micas and feldspars.