Vesicular Basalt (Scoria)
Basalt (Extrusive Igneous Rock)
Category
Browse man made material (jewelry, metal alloy) specimens identified by the Rock Identifier community.
Vesicular Basalt (Scoria)
Basalt (Extrusive Igneous Rock)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Shale
Fissile mudrock (composed of clay-sized particles and detrital grains)
Yellow Quartzite River Cobble
Meta-quartzite (SiO2 with iron oxide staining)
Sandstone (with Iron Oxide staining)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite
Green Calcite
Calcium Carbonate (CaCO3)
Rough Quartz (Grey-Green)
Silicon Dioxide (SiO2)
Sandstone (Quartz-rich Pebble)
Arenite (primarily SiO2)
Quartz (Druzy or Crystalline variety)
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (with Iron Staining)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Quartz (Smoky or Impure Variety)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2, silica)
Quartz
Quartz (Silicon Dioxide, SiO2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Orca Agate (Chalcedony)
Silicon Dioxide (SiO2) with inclusions
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
Tufa
Calcareous Tufa (CaCO3)
Pyrite on Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Basalt
Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)
Milky Quartz with Dendritic Inclusions
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
Mica Schist
Mica Schist (primarily Muscovite and/or Biotite composition)
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Scoria
Vesicular Basalt / Scoriaceous Basalt
Mahogany Obsidian
Volcanic glass containing Hematite or Magnetite (SiO2 + Fe2O3)
Ferruginous Conglomerate
Ferruginous Conglomerate (Clastic Sedimentary Rock)
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
Sandstone
Arenite (primarily SiO2)
Quartzite (River Cobble)
Metamorphosed Quartz Sandstone (SiO2)
Sandstone (Greywacke/Lithic Sandstone)
Arenite / Lithic Sandstone
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
Quartz Pebble (Iron-Stained)
Quartz (Silicon Dioxide - SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Sandstone (Micaceous/Feldspathic variant)
Arenite (specifically subarkose or lithic arenite)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)