Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Category
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Crystal
Quartz (SiO₂)
Quartz
Silicon Dioxide (SiO2)
Dalmatian Jasper
Peralkaline Quartz-feldspathic Rock (Arfvedsonite-bearing)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Dalmatian Stone
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
Dalmatian Stone (Dalmation Jasper)
Aplite with Arfvedsonite inclusions
Yellow Calcite
Calcium Carbonate (CaCO3)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyritic Rock (Dalmatian Stone)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Hematite
Iron (III) oxide (Fe2O3)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pyrite
Iron Disulfide (FeS2)
Calcite
Calcium Carbonate (CaCO3)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Rose Quartz variety)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Fluorite
Fluoride (Calcium Fluoride - CaF2)
Magnetite / Iron Ore (likely Hematite-Magnetite mix)
Magnetite (Fe3O4)
Pyrite
Iron Sulfide (FeS2)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Chalcedony (Milky Agate/Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartz Geode
Silicon Dioxide (SiO2)