Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Sandstone (likely Arkose)
Arenite (composed mainly of SiO2 with Feldspar)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Amber
Resinite (Succinite if from the Baltic); Chemical Formula: C10H16O (approximate)
Organic Diamond/Gemstone (often associated with Sedimentary sequences)
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt with Caliche Crust
Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating
igneous
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Jasper (Red)
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Druzy Quartz Geode (Vug)
Silicon Dioxide (SiO2)
mineral
Sandstone (Weathered Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Red Jasper with Quartz veins
Jasper (Silicon Dioxide, SiO2) with macrocrystalline Quartz veins
sedimentary
Chert (Field Stone)
Chert (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary
Sandstone (Ferruginous)
Arenite (with high iron oxide content)
sedimentary
Shale
Fissile Mudstone (Shale)
sedimentary
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2)
mineral
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
sedimentary
Bauxite
Bauxite (mixture of Hydrous Aluminum Oxides)
sedimentary
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
sedimentary
Geode (unopened) or Calcareous Nodule
Siliceous or Calcareous Concretion/Nodule
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Pyrite (on Shale/Matrix)
Iron Disulfide (FeS2)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
mineral
Amethyst and Ruby in Zoisite
Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)
mineral and metamorphic rock
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Sandstone (Quartz Arenite)
Sandstone (dominated by SiO2 quartz grains)
sedimentary
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2 + Fe2O3)
mineral
Sandstone (with Iron concretions/staining)
Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)
sedimentary
Red Jasper
Jasper (SiO2) with Hematite (Fe2O3) inclusions
sedimentary (microcrystalline quartz)
Shale (with minor calcite veining)
Clastic sedimentary rock (primarily clay minerals and quartz)
sedimentary
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
sedimentary
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
mineral