Pyrite (on Quartz/Host Rock)
Iron Sulfide (FeS₂)
mineral
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Chert (Pink Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
River Stone (Granitic Gneiss)
Foliated Granitic Gneiss
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Garden Quartz
Silicon Dioxide (SiO2) with various inclusions
mineral
Moss Agate Geode Sphere
Silicon Dioxide (SiO2) - Chalcedony with Chlorite or Manganese inclusions
mineral
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Sandstone (likely Calcareous or Quartz-rich)
Arenite (SiO2 based typically)
sedimentary
Jasper
Agate/Jasper (Microcrystalline Quartz, SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions (Hematite/Limonite)
mineral
Sandstone (Ferruginous)
Arenite (Fe2O3 stained)
sedimentary
Red Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Yellow Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO₂)
mineral
Dendritic Jasper (River Stone)
Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions
sedimentary
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Granite Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
sedimentary
Breciated Chert
Brecciated Chert (Microcrystalline Quartz, SiO2)
sedimentary
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Amphibolite (specifically Hornblende Schist/Gneiss)
Amphibole-rich Metamorphic Rock
metamorphic
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartz Geode
Quartz (Silicon Dioxide - SiO2) within a Chalcedony and Limonite shell
sedimentary
Shale
Shale (fine-grained clastic sedimentary rock)
Sedimentary
Rose Quartz
Rose Quartz (SiO2)
Mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Mica Schist
Mica Schist (Complex Silicate Rock)
metamorphic
Sandstone (Quartzose Sandstone)
Clastic Terrigenous Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Amber
Succinite (a Fossilized Tree Resin); Chemical formula is approximately C10H16O
Organic mineraloid
Sandstone Pebbles
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 principal composition)
sedimentary
Granite Sand (Decomposed Granite)
Grus / Quartz-Feldspar Detritus
sedimentary
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose)
Arenite (composed mainly of SiO2)
sedimentary
Banded Sandstone (Liesegang Rings)
Sedimentary Arenite (SiO2 with FeO/Fe2O3 impurities)
sedimentary
Garden Quartz
Silicon Dioxide (SiO2) with various inclusions (Lodolite)
mineral