Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Category
Sedimentary (Secondary Classification For A Weathered Mineral Specimen)
Browse sedimentary (secondary classification for a weathered mineral specimen) specimens identified by the Rock Identifier community.
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Potassium Feldspar (Orthoclase)
KAlSi3O8
mineral
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Jasper (Green Jasper / Moss Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Mookaite Jasper
Silicified Porcellanite (SiO2 with impurities)
sedimentary
Oolitic Chert
Silicon Dioxide (SiO2) with oolitic texture
sedimentary
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Limestone (Tufa/Travertine)
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Banded Chert (or River Jasper)
Microcrystalline Quartz (SiO2) with iron oxide impurities
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Sandstone (likely Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Iron-Stained Quartzite
Recrystallized Meta-Quartzite (primarily SiO2)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Grain)
Silicon Dioxide (SiO2)
mineral
Limonite (with goethite)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Quartzite (Quartz sand or Chert)
Quartzite (SiO2)
metamorphic
Almandine Garnet
Iron aluminum silicate - Fe3Al2(SiO4)3
metamorphic
Sandstone (with potential iron-oxide weathering)
Arenite (SiO2 based)
sedimentary
Quartzite River Rock (with Limonite staining)
Quartzite (SiO2)
metamorphic
Covellite
Covellite (CuS)
mineral
Dinosaur Bone (Gembone)
Petrified Dinosaur Bone (Apatite/Silica replacement)
sedimentary
Hag Stone
Calcareous sedimentary rock (often Chert, Flint, or Limestone)
sedimentary
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
mineral
Sandstone (Micaceous)
Clastic Sedimentary Rock (primarily SiO2 with Mica)
sedimentary
Yellow Chert (Yellow Jasper)
Silicon dioxide (SiO2)
sedimentary
Bivalve Fossil (Shell-bearing Sedimentary Rock)
Class Bivalvia (Phylum Mollusca) within a Calcarenite/Sandstone matrix
fossil
Jasper with Hematite (Red Jasper)
Silicon Dioxide with Iron Oxide (SiO2 and Fe2O3)
sedimentary (physico-chemical precipitate)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Banded Calcite (Honey Calcite)
Calcium Carbonate (CaCO3)
mineral
Chalcedony (Variety: Agate)
Silicon Dioxide (SiO2)
mineral
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone (Pebble)
Sandstone (arenite, arkose, wacke depending on composition)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz (Riverstone / Cobble)
Silicon Dioxide (SiO2)
mineral