Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous, Sedimentary, Metamorphic, And Mineral
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Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Titanium Quartz (Aura Quartz)
Silicon Dioxide (SiO2) treated with Titanium
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Pyrite
Pyrite (Iron Disulfide), FeS2
Mineral
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Banded dark pebble (likely gneiss or banded metamorphic rock)
Indeterminate from the image; possibly banded gneiss
metamorphic
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Specular Hematite
Iron(III) oxide (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear quartz crystal
Quartz (SiO₂), likely a small rough or naturally fractured crystal
mineral
Quartz (Clear or Milky)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Quartz (Grain)
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Labradorite (a variety of Feldspar)
Labradorite; (Na,Ca)(Al,Si)4O8 (a plagioclase feldspar)
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Yellow Quartz (Citrine / Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky Quartz / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Quartz-rich rock, likely milky quartz vein material
Mostly quartz (SiO₂); exact rock type cannot be determined from the image alone
mineral