Sedimentary Rock (Possibly Composed Of Various Minerals)

Vesicular Basalt (Iron-Stained)

Mafic Volcanic Rock (Basalt)

Quartz Druzy on Matrix (with Copper Mineralization)

Silicon Dioxide (SiO2) with Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O)

Sandstone (Pebble/Cobble)

Arenite (primarily SiO2)

White Quartz

Silicon Dioxide (SiO2)

Fluorite

Calcium Fluoride (CaF2)

Conglomerate

Conglomerate (clastic sedimentary rock)

Jasper (Cream/Yellow variety)

Silicon dioxide (SiO2)

Ironstone Concretion (Nutstone)

Ironstone (with High Limonite/Hematite Content)

Clear Quartz

Crystalline Silicon Dioxide (SiO2)

Agate Geode with Quartz Druzy

Chalcedony (SiO2) and Quartz (SiO2)

Schist with Quartz/Mica

Mica Schist (primarily Muscovite and Quartz)

Sandstone (lithic wacke/arenite)

Clastic sedimentary rock (primarily SiO2)

Sandstone (with banding)

Arenite (primarily SiO2)

Rhyolite

Rhyolite (Extrusive Felsic Igneous Rock)

Amygdaloidal Basalt

Amygdaloidal Basalt (Ca-rich Plagioclase, Pyroxene, and Olivine)

Diorite

Diorite (intermediate intrusive igneous rock)

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Green Moonstone (Garnierite)

Nickel-bearing Magnesium Silicate (often a mix of Serpentine and Talc/Chlorite groups)

Kambaba Jasper

Stromatolite / Fossilized Algae (Rhyolitic structure)

Ironstone Concretion (likely)

Goethite/Hematite/Limonite cemented sediment

Basalt with Epidote (Greenstone)

Amygdaloidal Basalt (Ca2(Al, Fe)3(SiO4)3(OH) inclusions)

Conglomerate

Clastic sedimentary rock (Puddingstone)

Red Shale

Fissile Siliciclastic Sedimentary Rock

Jade (likely Nephrite Jade based on appearance)

Nephrite (a variety of actinolite, Ca2(Mg,Fe)5Si8O22(OH)2)

Sandstone

Arenite (SiO2 based with mineral cement)

Granite (Weathered)

Phaneritic Felsic Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)

Sandstone (Fossiliferous)

Arenite / Clastic Sedimentary Rock

Sandstone (likely Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and mineral impurities

Pyrite (on host rock)

Iron Sulfide (FeS2)

Sandstone

Arenite (primarily SiO2)

Sandstone (likely Fossiliferous Sandstone)

Clastic sedimentary rock (primarily SiO2)

Mudstone

Lutylite (group of fine-grained sedimentary rocks)

Concretion

Septarian concretion (likely containing Calcite or Siderite)

Chert (often referred to as 'Jasper' when red)

Chert (microcrystalline quartz, SiO₂)

Carnelian Agate

Silicon Dioxide (SiO2)

Unakite

Epidote-Feldspar rock (specifically, a variety of granite)

River Pebble (Gabbro or Basalt)

Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)

Quartz pebble

Silicon dioxide (SiO2)

Sandstone

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Basalt with Calcite Veins

Aphanitic mafic volcanic rock with CaCO3 inclusions

Jasper

Silicon dioxide (SiO2) with iron oxide inclusions