Mica Schist with Pyrite
Mica Schist (FeS2 containing)
metamorphic
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
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Tumbled Chalcedony
Quartz (Silicon Dioxide - SiO2)
mineral
Garnet Schist
Almandine-bearing Mica Schist
metamorphic
Sandstone
Arenite (SiO2 + various cementing minerals)
sedimentary
Sandstone with Iron Staining
Arenite (SiO2 based with Fe2O3 staining)
sedimentary
Red Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
sedimentary
Dendritic Agate
Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)
mineral
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Garnet Gneiss or Mica Schist with Garnet
Almandine Garnet-bearing Gneiss
metamorphic
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Milky quartz (likely quartz-rich rock)
Quartz, silicon dioxide (SiO₂)
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Granite
Intrusive igneous felsic rock
igneous
Crazy Lace Agate
Chalcedony (SiO2) with microcrystalline quartz
sedimentary
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Zebra Jasper
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
sedimentary
Sandstone (River Cobble)
Clastic sedimentary rock (primarily SiO2 with various lithic fragments)
sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Sandstone (Quartzite-leaning)
Arenite (primarily SiO2)
sedimentary
Mica Schist
Mica Schist (primarily Muscovite and Biotite composition)
metamorphic
Brecciated Jasper / Fossiliferous Jasper Egg
Cryptocrystalline Quartz (SiO2) with iron oxides and mineral inclusions
sedimentary
Tumbled brecciated jasper
Jasper (microcrystalline quartz, SiO₂), brecciated variety
mineral
Quartz Druzy on Matrix (likely Agate or Jasper)
Silicon Dioxide (SiO2) with various mineral inclusions
mineral
Quartz Crystal Geode / Druzy Cluster
Silicon Dioxide (SiO2)
mineral
Amber (Copal)
Succinite (fossilized resin)
mineral
Geode (Unopened)
Silica-rich Concretion (primarily SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock)
igneous
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
mineral
Orthoceras Fossil in Limestone
Orthoceras (extinct genus of cephalopods), mineralized as Calcite (CaCO3) in Fossiliferous Limestone
sedimentary
Banded Agate
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
mineral
Sandstone (Red)
Arenite (primarily SiO2 with Fe2O3)
sedimentary
Dalmatian Jasper
Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)
igneous
Fossiliferous Limestone / Petrifaction
Sedimentary rock with fossil inclusions / Calcium Carbonate (CaCO3)
fossil
Sandstone
Arenite (variable SiO2 composition)
sedimentary
Red Jasper (or Banded Jasper)
Silicon Dioxide (SiO2 with Hematite impurities)
mineral
Chalcedony (Grey/White Agate)
Silicon Dioxide (SiO₂)
mineral
Tumbled brecciated jasper
Microcrystalline quartz (SiO₂), commonly with iron oxides and contrasting breccia fragments
mineral