Man Made Rock (Sedimentary Analogue)

Dalmatian Stone

Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)

Dalmation Stone (Dalmation Jasper)

Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)

River Stone (Granitic Gneiss)

Foliated Granitic Gneiss

Sandstone (Ferruginous)

Arenite (Fe-rich)

Red Sandstone

Arenite (Ferruginous Sandstone)

Sandstone (Quartzite-rich Pebble)

Arenite (primarily SiO2)

Flagstone (Sandstone)

Clastic Sedimentary Rock (composed of quartz and feldspar)

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Hag Stone

Naturally holed stone (typically sedimentary rock such as flint, limestone, or sandstone)

Limestone

Calcite-rich Sedimentary Rock (CaCO3)

Quartz Geode (Cracked Open)

Quartz (Silicon Dioxide - SiO2)

Limestone with Calcite Crystals

Sedimentary Rock containing Calcium Carbonate (CaCO3)

Sandstone (Greywacke)

Arenite / Wacke (Mainly SiO2 with various lithic fragments)

Ferruginous Sandstone

Arenite with Iron-Oxide cement (Fe2O3 · nH2O)

Sandstone with Dendritic Manganese Oxides

Sandstone (SiO2 predominant) with Oxide Dendrites (MnO2)

Chert (Brown variety / Common Jasper)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint)

Microcrystalline quartz (SiO2)

Sandstone (likely Quartzose Sandstone pebble)

Arenite (primarily SiO2)

Feldspar

Potassium Feldspar (KAlSi3O8)

Quartz / Common Opal

Silicon Dioxide (SiO2)

Turquoise

Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]

Limestone

Calcite-rich sedimentary rock (CaCO3)

Bituminous Coal

Organic Sedimentary Rock (Carbon-based)

Limestone with Chert

Sedimentary Rock (CaCO3 with SiO2 inclusions)

Coquina Limestone (Fossiliferous Limestone)

Calcareous bioclastic sedimentary rock (CaCO3)

Dragon Stone

Ohko Stone (Argillaceous sedimentary rock)

Conglomerate (Red Sandstone variety)

Clastic Sedimentary Rock (Conglomeratic Sandstone)

Bituminous Coal

Bituminous coal (Organic Sedimentary Rock)

Jasper Conglomerate (Puddingstone)

Jasper Conglomerate (Siliceous Sedimentary Rock)

Ironstone (with possible Hematite/Limonite coating)

Ironstone (Fe-rich sedimentary rock)

Quartz Conglomerate

Quartz Conglomerate (clastic sedimentary rock)

Coquina or Fossilized Shell Aggregate

Calcareous bioclastic sedimentary rock (CaCO3)

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Jasper Conglomerate (specifically Puddingstone)

Jasper Conglomerate (Siliceous sedimentary rock)

Lignite (Brown Coal)

Humic Lignite (Carbonaceous sedimentary rock)

Ferruginous Siltstone or Mudstone

Ferruginous Siltstone / Goethitic Sandstone

Agate (or Chalcedony)

Silicon Dioxide (SiO2)

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Quartz (Druzy)

Silicon Dioxide (SiO2)

Sandstone (Yellow/Tan)

Clastic sedimentary rock (primarily SiO2 with iron oxide staining)