Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Category
Mineral And Sedimentary
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Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide cement)
sedimentary
Limonite (Iron Ore/Sandstone mixture)
Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix
mineral
Sandstone (with potential Quartzite characteristics)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Mineral
Red Jasper
Silicon Dioxide with Iron inclusions (SiO2 + Fe2O3)
sedimentary
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone (likely Arkosic or Lithic Sandstone)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Quartz Geode (partially formed)
Silicon Dioxide (SiO2)
mineral
Limestone (Travertine/Tufa variant)
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (Quartz-rich)
Arenite (SiO2 based)
sedimentary
Sandstone (likely Arkose)
Arenite (composed mainly of SiO2 with Feldspar)
sedimentary
Pyrite in Host Rock
Iron Disulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Leopard Skin Jasper
Jasper (Silicon Dioxide with impurities), SiO2
sedimentary
Limonite after Marcasite (Propeller Conchoid)
Goethite/Limonite pseudomorph after Marcasite (FeO(OH)·nH2O)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Sandstone
Arenite
sedimentary
Green Kyanite
Kyanite (Al2SiO5)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral
Gneiss
Gneiss
metamorphic
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
River Stone (likely Siltstone or fine-grained Sandstone)
Clastic Sedimentary Rock (Lithic Wacke / Siltstone)
sedimentary
Sandstone (lithic wacke)
Arenite / Lithic Wacke (mostly SiO2 with rock fragments)
sedimentary
Sandstone (with Lichen)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Pyrite in Limestone
Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)
mineral
Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz / Rose Quartz fragment
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Milky Quartz in Matrix
Silicon Dioxide (SiO2)
mineral
Quartz Druzy (Geode Fragment)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Mica-rich Schist fragment
Mica Schist
metamorphic
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary