Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Mineral Within Sedimentary Rock
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
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Fossiliferous Limestone
Biogenic Limestone containing marine invertebrate fossils
sedimentary
Conglomerate
Conglomerate (SiO2, Al2O3, Fe2O3, CaCo3)
sedimentary
Garnet in Schist (Garnetiferous Micaceous Schist)
Almandine Garnet, Fe3Al2(SiO4)3
metamorphic
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
sedimentary
Slate
Slate (Foliated Metamorphic Rock)
metamorphic
Quartz (Drusy/Crystalline variety)
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Conglomerate
Conglomerate
sedimentary
Gneiss
Gneiss (High-grade Regional Metamorphism)
metamorphic
Banded Gneiss
Gneiss (SiO2-rich metamorphic rock)
metamorphic
Dalmatian Jasper
Peralkaline Quartz-feldspathic Rock (Arfvedsonite-bearing)
igneous
Gneiss
Gneiss
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Chert (Green Chert)
Microcrystalline silica (SiO2)
sedimentary
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Mineral
Fossil Crab
Decapoda (likely Avitelmessus or Raninidae family)
sedimentary
Gneiss
Gneiss
metamorphic
Gneiss
Foliated Metamorphic Rock (Gneiss)
metamorphic
Chert nodules in Limestone
Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix
sedimentary
River Rock (Gneiss/Schist mix)
Foliated Metamorphic Rock (Gneiss)
metamorphic
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
sedimentary
Sandstone (specifically Arkose or Ferruginous Sandstone)
Sandstone (SiO2 predominant)
sedimentary
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Ironstone Concretion
Ferruginous Sandstone / Iron-rich Sedimentary Rock
sedimentary
Gneiss
Gneiss
metamorphic
Gneissic Schist
Foliated Metamorphic Rock (Schist/Gneiss transition)
metamorphic
Gneiss
Gneiss
metamorphic
Zebra Jasper (with Chlorite/Epidote)
Silicon Dioxide (SiO2) with inclusions
sedimentary
Conglomerate (with Jasper pebble)
Conglomerate / Microcrystalline Quartz (Jasper)
sedimentary
Conglomerate
Conglomerate
sedimentary
Chert Nodule (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Fossil Shell (Brachiopod or Mollusk)
Phylum Brachiopoda or Class Bivalvia (e.g., Mucrospirifer or similar genus)
fossil
Ironstone Concretion / Limonite-stained Siltstone
Ironstone (primarily Limonite FeO(OH)·nH2O and Siltstone)
sedimentary
Jasper River Stone
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (varieties include Flint and Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Jasper (within host rock)
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
sedimentary
Quartz (Druzy or Crystalline)
Silicon Dioxide (SiO2)
mineral
Metaconglomerate
Protolith: Conglomerate (comprising SiO2, Al2O3, etc.)
metamorphic
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
sedimentary