Unakite
Unakite (Metamorphosed granite)
Category
Browse industrial byproduct (anthropogenic material) specimens identified by the Rock Identifier community.
Unakite
Unakite (Metamorphosed granite)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Amygdaloidal Basalt with Epidote
Vesicular Basalt with secondary Epidote/Quartz mineral infill
Rhyolite
Rhyolite (felsic volcanic rock)
Milky Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Sandstone (Quartzose)
Arenite (primarily SiO2)
Puddingstone (Gowganda)
Jasper-clast Polymictic Conglomerate (Gowganda Formation)
Sandstone
Arenite
Sandstone
Arenite (SiO2 primarily)
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)
Mica Schist with Garnet
Garnetiferous Mica Schist
Quartzite
Quartzite (primarily SiO2)
Citrine Quartz (Yellow Quartz)
Silicon Dioxide (SiO2) with iron impurities
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Red Sandstone
Ferruginous Sandstone (SiO2 dominated with Fe2O3 cement)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Ferruginous)
Arenite (with high iron oxide content)
Sandstone (Ferruginous/Red Sandstone)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Red Sandstone
Arenite (composed primarily of SiO2 with Fe2O3 cementation)
Quartzite
Quartzite (primarily SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Breccia
Breccia - Clastic sedimentary rock
Sandstone
Arenite (SiO2-rich)
Mica Schist
Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Ferruginous Sandstone Pebble
Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH) staining)
Sandstone (likely Arkosic or Quartzose)
Sandstone (SiO2 with inclusions)
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
Chert (Flint)
Cryptocrystalline Silica (SiO2)
Green Quartzite (with Fuchsite)
Quartzite with Muscovite variety Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
Sandstone
Arenite (primarily Quartz, SiO2)
Scoria
Vesicular Basalt / Scoria
Banded Iron Formation (Jaspillite)
Banded Iron Formation (BIF) / Jaspillite