Ironstone Nodules (Iron Concretion)
Siderite or Hematite Concretion
sedimentary
Category
Mineral Within Sedimentary Rock
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
Learn about Mineral Within Sedimentary Rock in the encyclopedia
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Agate / Chalcedony Geode Nodule
Silicon Dioxide (SiO2)
sedimentary
Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Mica Schist with Quartz
Crystalline Schist (SiO2 + KAl2(AlSi3O10)(OH)2)
metamorphic
Herkimer Diamond (Quartz Crystal)
Silicon Dioxide (SiO2)
mineral
Hag Stone
Perforated sedimentary rock (typically flint, chert, or limestone)
sedimentary
Ironstone Nodule
Ferruginous Sandstone / Limonite Concretion
sedimentary
Chert Geode or Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (River Cobble)
Clastic Sedimentary Rock (primarily Quartz with Feldspar)
sedimentary
Quartz Veinated Sandstone or Siltstone
Silicon Dioxide (SiO2) within a clastic sedimentary matrix
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Fe2O3 cement)
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide cement)
sedimentary
Turquoise (set in silver jewelry)
Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
metamorphic
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Mudstone/Siltstone with Liesegang Bands
Argillaceous Sedimentary Rock with Chemical Banding
sedimentary
Pyrite (on host rock)
Iron Sulfide (FeS2)
mineral
Carnelian (Red Chalcedony)
SiO2 (Silicon Dioxide with Iron Oxide inclusions)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz in Conglomerate Matrix
Silicon Dioxide (SiO2) within Clastic Sedimentary Rock
sedimentary
Limitation Concretion
Ironstone Concretion (Goethite/Limonite)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Quartz on Host Rock
Silicon Dioxide (SiO2)
Mineral Specimen
Sandstone
Arenite (SiO2 based typically)
sedimentary
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) in a Sedimentary Vug
sedimentary
Quartz Geode (Cracked Open Fragment)
Silicon Dioxide (SiO2)
mineral
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Sandstone (Ferruginous)
Arenite (with Iron Oxide)
sedimentary
Sandstone (Banded)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Ferruginous Quartz
Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Quartz Druzy on Geode Fragment
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) within a sedimentary or igneous host
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Jasper with Quartz Veins
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Gneiss
Gneiss (SiO2-rich metamorphic rock)
metamorphic
Quartz vein in host rock
Quartz (SiO₂), likely in a weathered carbonate or sedimentary matrix
mineral
Chert (Flint Nodules)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
River Quartzite Siltstone
Quartz-rich Meta-siltstone (SiO2 dominated)
metamorphic
Sandstone (with Possible Iron Staining/Crust)
Arenite (SiO2 based)
sedimentary