Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Mineral-like byproduct
Category
Mineral, Specifically An Iron Ore
Browse mineral, specifically an iron ore specimens identified by the Rock Identifier community.
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
mineral
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Ferruginous Sandstone with Ironstone Concretion
Goethite-rich Sandstone (FeO(OH))
sedimentary
Leopard Skin Jasper
Chalcedony (cryptocrystalline Quartz)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Jasper (specifically Fancy or Polychrome Jasper)
Silicon Dioxide (SiO2) - Chalcedony
Sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
sedimentary
Moonstone
Orthoclase Feldspar (KAlSi3O8)
mineral
Pyrite on Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
mineral
Iron Meteorite
Siderite (Fe-Ni alloy, primarily Kamacite and Taenite)
igneous
Banded Agate (specifically Carnelian Agate slice)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Tourmalinated Quartz
Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Banded Agate (specifically Sardonyx or Carnelian Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Agate (specifically Carnelian Agate or Sardagate)
Silicon dioxide (SiO2) - variety of chalcedony
mineral
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Red Jasper with Quartz
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Ironstone Concretion / Limonite-stained Siltstone
Ironstone (primarily Limonite FeO(OH)·nH2O and Siltstone)
sedimentary
Quartz (likely Herkimer Diamond style)
Silicon Dioxide (SiO2)
mineral
Zebra Jasper
Silicon Dioxide (SiO2) - Macro-crystalline Quartz/Chert with impurities
sedimentary
Basalt
Basalt (Composition primarily Plagioclase feldspar, Pyroxene, and Olivine)
igneous
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Jasper Agate (specifically Brecciated Jasper with Agate inclusions)
Silicon Dioxide (SiO2)
mineral
Tourmalinated Quartz
Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)
mineral
Jasper (specifically Picture Jasper or Landscape Jasper)
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
sedimentary
Nuummite
Nuummite (ortho-amphibole rock)
metamorphic
Red Jasper
Jasper (SiO2) with Hematite (Fe2O3) inclusions
sedimentary
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
Red Quartzite Slipper Stone
Quartzite (SiO2)
metamorphic
Red Jasper
Silicon Dioxide (SiO₂)
sedimentary
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Igneous
Galena
Lead Sulfide (PbS)
mineral
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Aquamarine on Feldspar Matrix
Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)
mineral
Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
mineral
Banded Agate (specifically Carnelian Agate / Sardonyx)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral