Conglomerate with Quartz Inclusions
Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)
sedimentary
Category
Mineral Within Sedimentary Rock
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
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Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Gneiss
Gneiss
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Devil's Toenail
Gryphaea (extinct genus of foam oysters, typically composed of Calcite CaCO3)
sedimentary
Chert / Chalcedony (likely carnelian or flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (and Flint variant)
Chert (SiO2)
sedimentary
Limonite-coated Shale
Ferruginous Siliciclastic Shale
sedimentary
Granite Gneiss
Metamorphic Rock (Quartz, Potassium Feldspar, Plagioclase, Biotite/Amphibole)
metamorphic
Quartz Geode in Chert/Limestone Matrix
Silicon Dioxide (SiO2) within Sedimentary Host Rock
sedimentary
Bituminous Coal (with Anthracite or Vitrinite inclusion)
Organic-rich Sedimentary Rock (Carboniferous classification)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Quartz Vein in Basalt or Porphyry
Silicate-veined volcanic rock
igneous
Amethyst
Amethyst (SiO2 with Iron impurities)
mineral
Chert (Gray Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Note: Item is not a geological specimen
Homo sapiens (Dermal Appendage: Pilus)
Organic / Biological
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
metamorphic
Flint / Chert (or fossiliferous nodule)
Microcrystalline quartz (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Chert in Matrix
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Horn Coral
Order Rugosa (Rugose Coral)
sedimentary
Gneiss (Metamorphic Rock)
Gneiss
metamorphic
Chert (Common Opal/Agatized Rock)
Microcrystalline Quartz (SiO2) with potential Chalcedony/Opaline silica
sedimentary
Chert (Jasper/Agate variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Glauconitic Sandstone (Greensand)
Glauconitic Quartz Arenite (Formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
sedimentary
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Quartz Pebble (Feldspathic / Chert Pebble)
Silicon Dioxide (SiO2) / Potassium Feldspar (KAlSi3O8)
sedimentary
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
sedimentary
Chert Concretion
Microcrystalline Quartz (SiO2)
sedimentary
Quartz-veined Siltstone/Greywacke
Clastic Sedimentary Rock with Quartz Infill (SiO2 vein)
sedimentary
Jasper Chert Nodules
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Chert / Flint Nodules in Limestone
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Gneis
Gneiss (High-grade metamorphic rock)
metamorphic
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
sedimentary
Garnet-Bearing Gneiss
Almandine-Garnet Gneiss
metamorphic
Amethyst
Silicon Dioxide (SiO2) with trace Iron (Fe3+)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Gneiss Pebble
Gneiss
metamorphic