Quartz Geode
Silicon Dioxide (SiO2)
mineral
Category
Mineral Within Sedimentary Rock
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
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Quartz Geode
Silicon Dioxide (SiO2)
mineral
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Red Sandstone
Arenite (with Iron Oxide / Hematite cementation)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Hematite Concretion
Iron oxide (Fe2O3) in concretionary form
sedimentary
Geode (Chert/Quartz Nodule)
Silicon Dioxide (SiO2)
sedimentary
Chert (Common Opal/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fluorite in Matrix
Fluorite (CaF2) within a host rock matrix
Mineral
Quartz Geode (Smoky Quartz)
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (SiO2 with Iron Oxide impurities)
mineral
Amethyst Geode
Silicon Dioxide with trace inclusions of Iron (SiO2)
mineral
Hag Stone
Perforated Quartz Pebble / Sedimentary Rock
sedimentary
Green Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Coal
Carbonaceous sedimentary rock
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Pyrite (on Shale/Matrix)
Iron Disulfide (FeS2)
mineral
Gneiss (specifically Micaceous Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) in a Secondary Formation
sedimentary
Concretion
Septarian concretion (likely containing Calcite or Siderite)
sedimentary
Sandstone Concretion
Clastic Sedimentary Rock (primarily SiO2 with mineral cement)
sedimentary
Green Jasper / Chert Pebbles
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
sedimentary
Epidote-bearing Rock / Epidote Inclusion
Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) in host rock
mineral
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Garnet Schist
Almandine-mica schist
metamorphic
Quartz-veined Siltstone
Siltstone with Quartz (SiO2) veins
sedimentary
Quartz-Mica Schist (with Muscovite)
Metamorphic Rock (Quartz, Muscovite, Feldspar)
metamorphic
Banded Gneiss
Gneiss
metamorphic
Chert (variations include Flint or Jasper)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Chert (variety of microcrystalline quartz, SiO2)
sedimentary
Chert (specifically Gray Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
igneous
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Puddingstone (Quartzite Pebble)
Metaconglomerate / Jasper-Quartzite Pebble
sedimentary
Shale with Limonite/Hematite Staining
Argillaceous sedimentary rock with Iron Oxides (FeO(OH)·nH2O / Fe2O3)
sedimentary
Sandstone with Iron Staining
Arenite (SiO2 with Fe2O3)
sedimentary
Gneiss (Hornblende/Biotite Gneiss)
Foliated Metamorphic Rock (Quartz-Feldspar-Amphibole/Mica matrix)
metamorphic
Red Jasper
SiO2 (Silicon Dioxide with Iron Oxide inclusions)
mineral
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Granite)
igneous