Sandstone (likely Arkosic or Quartzose)
Arenite (SiO2 based with mineral inclusions)
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Sandstone (likely Arkosic or Quartzose)
Arenite (SiO2 based with mineral inclusions)
Ruby in Kyanite
Al2O3 (Corundum) in Al2SiO5 (Kyanite-Fuchsite-Quartz)
Dalmation Stone (Dalmation Jasper)
Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)
Sandstone (Greywacke/Siltstone variant)
Arenite / Wacke (SiO2 with diverse mineral inclusions)
Sandstone
Arenite (Siliclastic sedimentary rock), SiO2 + various minerals
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Gneiss
Foliated Metamorphic Rock (Gneiss)
Banded Gneiss
Gneiss (Metamorphic Rock)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone with Magnetite and Iron Staining
Clastic Sedimentary Rock (contains Fe3O4 and Limonite/Hematite)
Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (likely Red/Brown Sandstone)
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 predominantly)
Caribbean Calcite
Calcium Carbonate with Argonite (CaCO3)
Dalmation Stone
Peralkaline Rock (mixed silicate minerals)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Extrusive volcanic rock)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (SiO2 based typically)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Dalmatian Stone (Dalmation Jasper)
Aplite with Arfvedsonite inclusions
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
Sandstone
Arenite/Quartz Arenite
Basalt with Granite Inclusions (Xenoliths)
Mafic igneous rock (Basalt) with Sialic minerals
Sandstone
Arenite (SiO2 primarily)
Milky Quartz
Silicon Dioxide (SiO2)
Druzy Quartz
Silicon Dioxide (SiO2)
Tree Agate
Dendritic Chalcedony (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 staining)
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 inclusions)
Red Jasper with Quartz Veining
Jasper (Silicon Dioxide, SiO2) with Quartz (SiO2) inclusions
Gneiss (with Mica and Quartz)
Gneissic Metamorphic Rock