Sedimentary Rock (Possibly Composed Of Various Minerals)

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide impurities), formula: SiO2

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Chalcedony Nodule (Commonly known as Agate or Chert)

Microcrystalline Quartz (SiO2)

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Clear Quartz crystals on a Matrix base (Geode fragment)

Silicon Dioxide (SiO2)

Diorite

Diorite (Intermediate intrusive igneous rock)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Sandstone with Quartz Vein

Arenite with Quartz (SiO2) Infilling

Sandstone (Ferruginous/Red Sandstone)

Clastic sedimentary rock (primarily SiO2 with Fe2O3)

Chert Concretion (with typical hematite/limonite staining)

Sedimentary Concretion (SiO2 with FeO(OH)⋅nH2O)

Dalmatian Stone (Dalmation Jasper)

Aplite with Arfvedsonite inclusions

Yellow Jasper

Silicon Dioxide with Iron inclusions (SiO2)

Hag Stone

Perforated Sedimentary Rock (typically Limestone or Sandstone)

Diabase (Greenstone)

Diabase (also known as Dolerite)

Fossiliferous Limestone

Limestone (CaCO3 - Calcium Carbonate)

Calamites (Fossilized Horsetail)

Calamites suckowii (Family: Calamitaceae)

Talc

Talc (Mg₃Si₄O₁₀(OH)₂)

Basalt (Crushed Stone Aggregate)

Mafic Volcanic Basalt (Major Minerals: Plagioclase Feldspar, Pyroxene, Olivine)

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Banded Agate (Orca Agate)

Silicon Dioxide (SiO2) - Chalcedony variety

Green Calcite

Calcium Carbonate (CaCO3)

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in Geode form

Chert (specifically Agate/Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO₂)

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Carnelian Agate

Carnelian (Silicon Dioxide: SiO2)

Opal

Hydrated Silica (SiO2·nH2O)

Turquoise

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

Turquoise (likely Sleeping Beauty variety or treated Howlite imitation)

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

Pumice

Vesicular volcanic glass (Amorphous silica mixed with various oxides)

Quartz with Mica inclusions (likely Schist or Gneiss host)

Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)

Basalt with Iron Oxidation

Mafic Igneous Basalt

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Iron-stained or Rose variant)

Silicon Dioxide (SiO2)

Tiger's Iron

Pseudomorphic Quartz Aggregate (contains SiO2 with Fe2O3 and FeOOH)

Sandstone

Arenite (SiO2 primarily)

Red Sandstone

Arenite (Ferruginous Sandstone)

Sandstone

Arenite (primarily Quartz, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Basalt Pebble with Epidote/Olivine

Vitreous Basalt (SiO2 with Ca/Mg/Fe silicates)

Tumbled Stone Collection (featuring Tiger's Eye, Rose Quartz, and Moss Agate)

Mixed Silicates and Oxides (predominantly SiO2 group minerals)