"Ward's Phenomena"

Dense and massive.

Hematite-cemented quartz; orthoquartzite.

Black, soft; most widely mined.

Represents a Wide Range of Depositional Environments and Rock Textures

Sale

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

1 pound of black sand packaged in a heat-sealed bag.

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