Carnelian
Carnelian (SiO2)
Category
Browse mineral, specifically an iron ore specimens identified by the Rock Identifier community.
Carnelian
Carnelian (SiO2)
Amethyst (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Ironstone (likely siderite or goethite-rich siltstone)
Ferruginous Siltstone
Hematite
Iron(III) oxide (Fe2O3)
Pink Himalayan Salt (Halite)
Halite - NaCl (Sodium Chloride) with trace Iron Oxide and Magnesium
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Orange Calcite
Calcium Carbonate (CaCO3)
Limonite
Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O
Ferruginous Sandstone (Gozzanous)
SiO2 (Quartz) with FeO(OH) (Goethite) or Fe2O3 (Hematite) coating
Jasper (Iron-stained)
Jasper (Silicon Dioxide, SiO₂ with Iron inclusions)
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
Specularite (Specular Hematite)
Iron Oxide (Fe2O3)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Sandstone Beach Pebble
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide coating)
Carnelian
Carnelian (Silicon Dioxide, SiO2)
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
Raw Citrine (Yellow Quartz)
Citrine / Silicon Dioxide (SiO2)
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)
Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Jasper (Red Jasper)
Jasper (Silicon Dioxide, SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Ferruginous Sandstone (with Iron Oxide staining)
Clastic Sedimentary Rock - Quartz Arenite/Wacke
Moss Agate
Chalcedony (Silicon Dioxide / SiO2)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Sandstone (Ferruginous)
Arenite (Fe-rich)
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Specular Hematite
Specularite (Iron Oxide, Fe2O3)
Hematite
Iron(III) oxide (Fe2O3)
Sandstone with Iron Oxide (Limonite/Hematite)
Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)
Amethyst (Chevron Amethyst)
Amethystine Quartz (SiO2)
Pyrite (on Quartz/Host Rock)
Iron Sulfide (FeS₂)
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Chrysocolla in Matrix
Hydrated copper phyllosilicate mineral (Cu,Al)2H2Si2O5(OH)4·nH2O
Magnetite
Magnetite (Fe3O4)
Ironstone Concretions (Ironstone)
Ferruginous Sandstone or Siltstone (Fe2O3)