Fossiliferous Limestone
Image: <bdi><a href="//commons.wikimedia.org/wiki/User:ComputerHotline" title="User:ComputerHotline">Thomas Bresson</a></bdi> (CC BY 3.0)
Mineral NameFossiliferous Limestone
Chemical FormulaCaCO3
Mohs Hardness3
Crystal Systemtrigonal
Lusterdull
Streak ColorWhite
CleavageIndistinct (due to rock nature)
FractureUneven
Specific Gravity2.71
Colorswhite, cream, light brown
TransparencyOpaque
Type LocalityWorldwide
Mineral GroupCarbonates
Usesbuilding material, decorative stone, geological study, collector's item
Associated Mineralscalcite, aragonite, quartz, clay minerals
Raritycommon
Description
This image displays a light-colored fossiliferous limestone, characterized by a dense accumulation of various marine fossils, including shell fragments and circular structures, embedded within a fine-grained matrix. Brownish veins and patches of coarser material are also visible, cutting through the fossil-rich rock.
Geological Context
Fossiliferous limestone forms in marine environments where the skeletal remains of organisms, primarily composed of calcium carbonate, accumulate and are subsequently compacted and cemented over geological time. It provides valuable insights into ancient ecosystems and paleoenvironments.
