Sedimentary Rock (Technically A Variety Of Chalcedony)

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Limestone (specifically Dolomitic/Crystalline Limestone)

Sedimentary Carbonate Rock (CaCO3 / CaMg(CO3)2)

Sandstone (Quartz Arenite)

Sandstone (Chemical formula: primarily SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Ferruginous Sandstone (Ironstone)

Sedimentary rock with Limonite/Goethite cement

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

Polygenetic Conglomerate (Puddingstone)

Conglomerate (SiO2 matrix with mixed clasts)

Sandstone (with prominent jointing/fractures)

Arenite (composed primarily of SiO2)

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Sandstone (River Pebble)

Arenite (primarily SiO2)

Jasper, Agate, Quartz Mix (Polished Beads)

SiO₂ (Silicon Dioxide) for Quartz. Jasper and Agate are cryptocrystalline varieties of Quartz.

Zebra Jasper

Silicon Dioxide (SiO2) with various inclusions

Yellow Calcite

Calcium Carbonate (CaCO3)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

Grey River Pebble (Likely Quartz-rich or Limestone)

Clastic Sedimentary Rock (typically SiO2 or CaCO3 based)

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Sandstone

Arenite (primarily SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Quartz (Milky/Yellowish variety)

Silicon Dioxide (SiO2)

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz - SiO2)

Red Jasper (Opaque Chalcedony)

Silicon Dioxide (SiO2) with Hematite impurities

Halite (Rock Salt)

Halite; NaCl (Sodium Chloride)

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt (primarily SiO2, MgO, FeO, and CaO)

Sandstone (Quartzose Pebble)

Clastic Sedimentary Rock (Litharenite/Quartz arenite)

Sandstone with Iron Oxide

Arenite (SiO2 with Fe2O3 staining)

Dalmatian Stone

Dalmatian Jasper (actually a Peralkaline Igneous Rock)

Limestone

Calcium Carbonate (CaCO3)

Pink Granite

Phaneritic Plutonic Felsic Igneous Rock (Granite)

Quartz (likely milky quartz or a stained variety)

Silicon Dioxide (SiO₂)

Druzy Quartz on Limestone

Silicon Dioxide (SiO2)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Sandstone

Arenite (primarily SiO2)

Fossiliferous Chert with Brachiopod Impression

Chert (SiO2) containing Brachiopoda fossil remains

Sandstone (Ferruginous)

Arenite (with iron oxide cement)

Sandstone (Weathered)

Arenite (primarily SiO2)

Chert Pebble

Microcrystalline Quartz (SiO2)

Chert (Black Flint)

Chert (Microcrystalline Quartz, SiO2)

Gowganda Tillite (Puddingstone)

Glacial Tillite (Diamictite) with Jasper inclusions