Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Category
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Quartz
Silicon Dioxide (SiO2)
Blue Quartz (Dumortierite Quartz)
Quartz (SiO2) with inclusions of Dumortierite (Al7(BO3)(SiO4)3O3)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Pyrite
Iron Sulfide (FeS2)
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
Yellow Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Mica (Muscovite)
Muscovite, KAl2(AlSi3O10)(OH)2
Tiger Iron
Tiger Iron (Hematite, Red Jasper, and Tiger's Eye)
Travertine
Terrestrial Sedimentary Limestone (CaCO3)
Magnetite
Magnetite (Fe3O4)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide impurities
Chalcedony (Yellow Jasper or Agate)
Microcrystalline Quartz (SiO2)
Yellow Ochre (Limonite)
Limonite (FeO(OH)·nH2O)
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Red Jasper
Silicon dioxide (SiO2) with iron oxide (Fe2O3) inclusions
Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Red Jasper with Quartz Vein
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Talc
Talc (Mg₃Si₄O₁₀(OH)₂)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Blue Kyanite
Kyanite (Al2SiO5)
Galena
Lead(II) sulfide (PbS)
Pyrite
Iron Disulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Garnet (Almandine)
Almandine, Fe3Al2Si3O12
Quartz (Milky/Snow)
Silicon Dioxide (SiO2)
Pyrite in Matrix
Iron Disulfide (FeS2)
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Riverstone (Quartzite or Siltstone cobble)
Quartzite (primarily SiO2)
Specular Hematite
Specularite (Fe2O3)
Calcite
Calcium Carbonate (CaCO3)
Crushed Limestone
Calcium Carbonate (CaCO3)
Halite
Sodium Chloride (NaCl)