Quartz Geode
Silicon Dioxide (SiO2) - Crystalline Quartz
mineral
Category
Mineral Within A Sedimentary Rock
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
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Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide (Limonite/Hematite) coating
sedimentary
Quartz-lined Geode / Chalcedony Nodule
Silicon Dioxide (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) within a sedimentary or igneous host
sedimentary
Geode
Crystalline Quartz in Sedimentary Matrix (SiO2)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Weathered Sandstone with Algae Growth
Arenite
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Conglomerate (Quartz Pebble Conglomerate)
Quartz Pebble Conglomerate
sedimentary
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Sandstone (with Iron Staining)
Arenite (Siliclastic sedimentary rock)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide matrix
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Geode
Quartz / Chalcedony nodule with mineralized cavity
sedimentary
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
sedimentary
Snakeskin Jasper
Microcrystalline Quartz (SiO2) with iron inclusions
sedimentary
Metaconglomerate
Metaconglomerate (Quartzite conglomerate)
metamorphic
Chalcedony / Agate Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Dalmatian Stone (often misnamed Dalmatian Jasper)
Aplite (with hornblende/arfvedsonite inclusions)
igneous
Sandstone (Quartzose)
Arenite (SiO2)
sedimentary
Travertine (or Calcareous Tufa)
Calcium Carbonate (CaCO3)
sedimentary
Banded Sandstone
Arenite with Liesegang banding (primarily SiO2 with FeO(OH) impurities)
sedimentary
Gneiss
Foliated Metamorphic Rock
metamorphic
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Iron Concretion
Ferruginous concretion (Fe2O3·nH2O / FeO(OH))
sedimentary
Ironstone pebble
Ironstone (Ferruginous Sedimentary Rock)
sedimentary
Weathered Sedimentary Rock with Liesegang Rings
Sandstone or Siltstone with Iron Oxide Banding
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone Concretion
Sedimentary Clastic Rock (Silicate-rich)
sedimentary
Agate / Chalcedony Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Carnelian
SiO2 (Silicon Dioxide - Chalcedony variant)
mineral
Drupa or Druzy Quartz on Geode Fragment
Crystalline Silicon Dioxide (SiO2)
mineral
Banded Sandstone
Clastic Sedimentary Rock (Quartz Arenite)
sedimentary
Quartz Geode
Crystalline Silicon Dioxide (SiO2) within a geode structure
mineral
River Rock / Stream Pebble
Fluvial Clast / Rounded Sedimentary Particle
Sedimentary Rock (possibly composed of various minerals)
Carnelian (Agate)
SiO2 (Silicon Dioxide with Iron Oxide inclusions)
mineral