Indiana Mississippian Chert & Limestone Context
chert, limestone, calcite, fossils and geodes
Core atlasINDIANA LOCAL FIELD REGION
Geode-bearing carbonate strata with quartz, calcite, chalcedony and dolomite; access varies sharply by parcel and stream.
LOCAL INTERACTIVE MAP
Explore nearby Indiana records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.

Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.
The records below may represent collecting sites, managed programs, protected resources or research-only geology. Their individual status is more important than proximity.
chert, limestone, calcite, fossils and geodes
Core atlasIron
USGS ResearchZinc
USGS ResearchFluorite
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchAluminum
USGS ResearchAluminum
USGS ResearchAluminum
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchAluminum
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchIron
USGS Researchweathered geodes, quartz, calcite and stream gravels
Core atlasIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS Research