Sedimentary Rock (Specifically A Chemical Sedimentary Rock, Or A Chert If Considered Purely Mineral Aggregate)

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

Limestone

Calcium Carbonate (CaCO3)

Chert (River Stone)

Microcrystalline Quartz (SiO2)

Chert / Microcrystalline Quartz

Silicon Dioxide (SiO2)

Banded Sandstone (Wonderstone)

Sandstone with Liesegang Rings (SiO2 with Iron Oxides)

Honey Calcite (Yellow Calcite)

Calcium Carbonate (CaCO3)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Yellow Ochre / Limonite

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Honey Calcite

Calcium Carbonate (CaCO3)

Chert (Flint)

Silicon Dioxide (SiO2)

Chert Breccia

Brecciated Chert

Stromatolite

Biogenic Sedimentary Rock (composed predominantly of CaCO3)

Druzy Quartz on Agate/Chert

Silicon Dioxide (SiO2)

Chert (Field Flint)

Microcrystalline Quartz (SiO2)

Basalt with Epidote Veining

Basalt (Mafic Extrusive Rock) with Ca2(Al,Fe)3(SiO4)3(OH)

Granite Pegmatite

Phaneritic Plutonic Igneous Rock

Turquoise

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

Turritella Agate

Silicified Elimia tenera Fossil (SiO2)

Fossiliferous Limestone (Crinoidal Limestone)

Biogenic Limestone (Calcium Carbonate, CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock

Chert (Pink Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone (likely Greywacke variant)

Arenite

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Flint)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Sandstone (with Liesegang rings or Oxidation)

Arenite (primarily Quartz SiO2 with Iron Oxide Fe2O3 staining)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Quartzwacke / Impure Sandstone

Arenite with minor lithic fragments (Silicon Dioxide matrix)

Banded Chert

Cryptocrystalline Quartz (SiO2)

Chert (Iron-stained)

Microcrystalline quartz (SiO2)

Sandstone (Water-worn Pebble)

Clastic sedimentary rock (primarily SiO2)

Chert (specifically Chalcedony or Flint variation)

Microcrystalline Quartz (SiO2)

Jasper Conglomerate (Puddingstone)

Jasper Conglomerate (Siliceous Sedimentary Rock)

Yellow Jasper

Jasper, a microcrystalline variety of Quartz (SiO2) with iron inclusions

Orange Calcite

Calcium Carbonate (CaCO3)

Halite (Rock Salt)

Halite (Sodium Chloride, NaCl)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Nodule)

Microcrystalline Silica (SiO2)

Chert (Tan/Brown)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz