Conglomerate

Clastic Sedimentary Rock

Grain size: Large (> 2mm)

Depositional environment: Stream/river bed

Characteristics: Rounded clasts (grains)*

*this makes it Conglomerate rather than Breccia

Rock Salt

Biochemical Sedimentary Rock

Mineralogy: Halite

Depositional environment: Evaporite (salt water)

Characteristics: Salty taste

                      Soft

Sandstone

Clastic Sedimentary Rock

Grain size: small (1/16 to  2mm)

Depositional environment: Water, no travel

Characteristics: Feels rough like sandpaper

Shale

Clastic Sedimentary Rock

Grain size: Very small (<1/16 mm)

Depositional environment: Water, no travel

Characteristics: Has particular sound when struck   

                      against itself or slide on itself

Breccia

Clastic Sedimentary Rock

Grain size: Large (>2 mm)

Depositional environment: Traveled, stream or river

Characteristics: Rough edges to clasts (grains)

Breccia

Clastic Sedimentary Rock

Grain size: Large (>2 mm)

Depositional environment: Traveled, stream or river

Characteristics: Rough edges to clasts (grains)

Shale

Clastic Sedimentary Rock

Grain size: Very small (<1/16 mm)

Depositional environment: Water, no travel

Characteristics: Has particular sound when struck   

                      against itself or slide on itself

Gypstone

Biochemical Sedimentary Rock

Mineralogy: Gypsum

Depositional environment: Non-travel, body of water

Characteristics: Massive

                      Fibrous

                      Very soft

                      Test with fingernail

Chert

Biochemical Sedimentary Rock

Mineralogy: Quartz

Depositional environment: Non-travel, body of water

Characteristics: Massive

                      Very fine grained

                      Very hard

                      Sometimes banded

                      Smooth surface with sharp edges

Coal

Biochemical Sedimentary Rock

Mineralogy: Organic matter

Depositional environment: Non-travel, body of water

Characteristics: Black

                      Light weight

                      Will burn

Coquina

Biochemical Sedimentary Rock

Mineralogy: Fossil Shells/Coral

Depositional environment: Non-travel, salt water

Characteristics: Multi-sized shells/corral clearly visable

                 Looks like a granola bar

Limestone

Biochemical Sedimentary Rock

Mineralogy: Calcite

Depositional environment: Non-travel, body of water

Characteristics: Fine to coarsely crystalline

                      Often contains fossils

                      Reacts with HCL