Chert Nodule (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Mineral Within A Sedimentary Rock
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
Learn about Mineral Within A Sedimentary Rock in the encyclopedia
View all →
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
Gneiss
Gneiss
metamorphic
Weathered granitic rock
Granite or granodiorite; mainly quartz, feldspar, and mica/amphibole
igneous
Jasper (likely Ocean Jasper or Variegated Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic
Jasper with Dendritic Inclusions
Microcrystalline Quartz (SiO2) with manganese or iron oxide inclusions
sedimentary
Glauconite (Green Sandstone)
Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2
sedimentary
Carnelian
Carnelian (Silicon Dioxide - SiO2)
mineral
Glauconitic Sandstone
Glauconitic Quartz Sandstone (K(Fe,Al)2(Si,Al)4O10(OH)2)
sedimentary
Banded gneiss pebble
Biotite–quartz–feldspar gneiss (composition variable)
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Hydroxide inclusions
mineral
Ironstone Concretion
Ferruginous Sandstone / Siderite Concretion
sedimentary
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
mineral
Citrine Geode
Silicon Dioxide (Quartz variety, often heat-treated amethyst): SiO2
mineral
Chert
Silicon dioxide (SiO2)
Sedimentary
Chert (Agatized)
Silicon dioxide (SiO2)
sedimentary
Granitic Gneiss Pebble
Gneiss (felsic metamorphic rock)
metamorphic
Chert
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Gneiss (with iron staining)
Gneiss
metamorphic
Chert (Tan/Yellow variety)
Microcrystalline quartz (SiO2)
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (and Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert Nodules in Sedimentary Rock
Microcrystalline Quartz (SiO2) within Clastic Matrix
sedimentary
Chert (and/or Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Ironstone Concretion / Goethite-Hematite Geode
Goethite / Hematite Concretion (Fe3O4 / FeO(OH) / Fe2O3)
sedimentary
Banded Flint (Polished Stripe Flint)
Silicon Dioxide (SiO2) - variety of Chert
sedimentary
Himalayan Pink Salt
Halite (NaCl) with iron oxide inclusions
sedimentary
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Siltstone with Iron Staining
Siltstone (primarily SiO2 with Fe2O3 staining)
sedimentary
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Sedimentary