Sandstone (Quartzite-rich Cobble)
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.
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Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone (Siltstone or Fine-grained)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Blue Quartz (Blue Chalcedony/Dumortierite Quartz)
Silicon Dioxide (SiO2) with inclusions (typically Dumortierite Al7(BO3)(SiO4)3O3)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Copper Ore / Altered Granodiorite
Cupriferous rock with silicate gangue
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Veined Limestone (Micrite) with Quartz/Calcite Veins
Calcium Carbonate (CaCO3) with Silicate or Carbonate inclusions
sedimentary
Sedimentary Pebble (Sandstone)
Clastic Sedimentary Rock (SiO2 dominant)
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst (Geode/Druzy)
Silicon Dioxide (SiO2) with iron impurities
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Milky Quartz in Shale
Silicon Dioxide (SiO2) in sedimentary host rock
mineral
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
metamorphic
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
sedimentary
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (composed mostly of SiO2)
sedimentary
Yellow Quartz / Chalcedony
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
sedimentary
Bauxite (Laterite Clay)
Bauxite (mixture of Hydrous Aluminum Oxides: Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))
sedimentary
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
sedimentary
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
mineral
Sandstone
Arenite (SiO2 based with mineral cement)
sedimentary
Bauxite
Al2O3·2H2O (principally composed of gibbsite, boehmite, and diaspore)
sedimentary
Vesicular Basalt
Vesicular Basalt
igneous
Dalmatian Jasper
Aplite with Arfvedsonite inclusions
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)
sedimentary
Fancy Jasper (Ocean Jasper or River Jasper variant)
Silicon Dioxide with inclusions (SiO2)
sedimentary
Sparkling Druzy Quartz on Matrix
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Barite Rose
Barium Sulfate (BaSO4)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Granite Pebbles
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
Agate (Puddingstone style)
Silicon Dioxide (SiO2) with impurities
mineral