Packed Biosparite
Packed biosparite is the technical name for fossil-rich limestone. Bio is for biological and sparite calcite holds everything together. Exposed areas have many fossils on the surface due to weathering.
Micrite
Micrite is lime mud formed in water and cemented by time and pressure to form the most common of carbonate rocks.
Fossils
Fossils can be the actual animal remains, such as a clam, or an impression, such as a leaf, preserved in the rock. Fossils commonly found in limestone are shark̵7;s teeth, clams, fish and other aquatic life forms, but anything in the water could sink to the bottom and become fossilized.
Collectors
Because limestone has high numbers of fossils, it's popular among fossil collectors. They cut and polish the rocks, making attractive displays from their finds.
Construction
Limestone is easy to carve and cut, and is widely used as a building material. Egyptians used it in the pyramids and Europeans used it to build cathedrals. Fossil limestone is desirable for tabletops, counters and other decorative objects because it is easily cut and polished. Slabs with large or unusual fossils are the most valued.