Mineral Side Rock

Garnet (specifically Almandine)

Almandine - Fe3Al2(SiO4)3

Quartz (Specifically Clear to Smoky Quartz point)

Silicon Dioxide (SiO2)

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz-rich breccia or vein quartz fragment

Quartz (SiO₂), likely with iron-oxide staining and attached host rock

Epidote with Quartz

Ca2(Al,Fe)3(SiO4)3(OH) (Epidote) / SiO2 (Quartz)

Clear Quartz

Silicon Dioxide (SiO2)

Amethyst Quartz Crust

Crystalline Silicon Dioxide with Iron impurities (SiO2)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (specifically a small Clear Quartz point)

Silicon Dioxide (SiO2)

Amethyst

Amethyst (Silicon Dioxide, SiO2 + Fe4+)

Tumbled milky quartz (likely quartzite or quartz pebble)

Quartz, silicon dioxide (SiO₂); exact rock type is uncertain from the image

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Epidote with Quartz

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Garnet

Garnet Group (e.g., Almandine Fe3Al2(SiO4)3)

Clear quartz crystal

Quartz (silicon dioxide, SiO₂)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Raw Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Cat's Eye Chrysoberyl

Chrysoberyl (BeAl2O4)

Opalite

Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Quartz (SiO2)

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Petoskey Stone

Hexagonaria percarinata

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Raw tourmaline crystal (probable schorl)

Tourmaline group; likely schorl, NaFe3+Al6(BO3)3Si6O18(OH)4

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst (Druze)

Silicon Dioxide (SiO2) with iron impurities

Smoky quartz crystal

Quartz, silicon dioxide (SiO₂), likely smoky variety

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Likely black tourmaline (schorl) crystal

Schorl, a black iron-rich tourmaline; approximate formula NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Amethyst Geode (Carved)

Amethyst (Violet Crystalline Quartz - SiO2)

Sand Tiger Shark Tooth

Carcharias taurus