Chert (Flint Nodules)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary (Chemically Precipitated Mineral)
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Chemically Precipitated Mineral) in the encyclopedia
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Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
sedimentary
Agate (Chert/Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Quartzite or Massive Quartz)
Silicon Dioxide (SiO2)
Mineral
Band Agate / Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Limestone (Travertine/Tufa variant)
Calcium Carbonate (CaCO3)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Gneiss (with Quartzite layers)
Gneissic Metamorphic Rock
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert with Quartz Veining
Silicon Dioxide (SiO2)
sedimentary
Limonite-stained Quartz / Quartzite
Silicon Dioxide (SiO2) with iron hydroxides (FeO(OH)·nH2O)
sedimentary or metamorphic
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodular Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone with Liesegang Rings
Liesegang-banded Sandstone
sedimentary
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in Geode form
sedimentary
Limonite Concretion
Goethite-Limonite (FeO(OH)·nH2O)
sedimentary
Quartz Geode with Chalcedony
Crystalline Silicon Dioxide (SiO2)
sedimentary
Gold
Native Gold (Au)
mineral
Chert (Yellow and Red Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Banded Agate
Silicon Dioxide (SiO2) - Chalcedony
sedimentary
Chert (and Limestone)
Silicon Dioxide (SiO2)
sedimentary
Concretion
Various mineral compositions, typically carbonate or iron oxide cemented sediment
Sedimentary
Chrysocolla
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Liesegang Ring Siltstone
Siltstone with iron oxide Liesegang bands
sedimentary
Sand
Siliciclastic sediment / Quartz sand (SiO2)
sedimentary
Quartz (Milky or Clear Quartz fragment)
Silicon Dioxide (SiO2)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Milky or Yellowish)
Silicon Dioxide (SiO2)
mineral