Mineral Side Rock

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Pink tourmaline crystal (probable)

Elbaite tourmaline, Na(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Quartz crystal cluster

Quartz (SiO₂), likely milky quartz

Garnet

Garnet group: X3Y2(SiO4)3 (commonly Almandine-Pyrope series)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Geode Cluster (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂)

Basalt Column Section

Columnar Basalt (Mafic Extrusive Igneous Rock)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Honey-colored quartz cluster

Quartz, silicon dioxide (SiO₂), likely iron-stained or included quartz

Amethyst

SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)

Almandine Garnet

Iron aluminum silicate (Fe3Al2(SiO4)3)

Quartz crystals on matrix

Silicon dioxide (SiO2)

Iron-rich quartz rock, possibly hematite/goethite-bearing quartz

Quartz (SiO₂) with iron oxides/hydroxides, chiefly hematite (Fe₂O₃) and goethite (FeO(OH))

Basalt Arrowhead (worked stone)

Aphanitic mafic volcanic rock (Basalt)

Amethyst cluster (quartz geode fragment)

Amethyst, purple variety of quartz; silicon dioxide (SiO₂) colored mainly by iron-related defects

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Garnet (Almandine)

Almandine, Fe3Al2Si3O12

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Coral Fossil / Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Clear Quartz

Silicon Dioxide (SiO2)

Milky quartz fragment

Quartz (silicon dioxide, SiO₂), likely massive or vein quartz

Quartz (possibly milky quartz or quartz with inclusions)

SiO2 (Silicon Dioxide)

Petoskey Stone (Fossilized Coral)

Hexagonaria percarinata

Quartz (specifically Clear Quartz with iron/hematite staining)

Silicon Dioxide (SiO2)

Quartz with inclusions

SiO2

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

White quartz fragment

Quartz (silicon dioxide, SiO₂)

Smoky Quartz

Silicon Dioxide (SiO2)

Rock crystal (clear quartz), likely rough or lightly polished

Quartz — silicon dioxide (SiO₂)

Beryl (Emerald Variety)

Beryllium aluminum silicate (Be3Al2(SiO3)6)

Quartz crystal cluster

Quartz, silicon dioxide (SiO₂), likely milky quartz with drusy crystals

Faceted blue gemstone ring, likely synthetic spinel or glass; identity uncertain

Possibly synthetic blue spinel (MgAl₂O₄) or laboratory sapphire (Al₂O₃); the clear side stones may be cubic zirconia or glass

Tumbled quartz crystal fragment

Quartz, silicon dioxide (SiO₂), likely iron-stained or included quartz

Milky quartz

Quartz (silicon dioxide, SiO₂)

Likely quartz crystal fragment

Quartz (silicon dioxide, SiO₂)

Clear quartz crystals

Quartz (silicon dioxide, SiO₂)

Tumbled or naturally broken quartz crystal

Quartz (silicon dioxide, SiO₂)

Petoskey Stone

Hexagonaria percarinata

Amethyst geode

Quartz (SiO₂), purple variety colored mainly by iron and irradiation