Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Category
Browse not a rock (synthetic material) specimens identified by the Rock Identifier community.
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Everest
Canis lupus familiaris (Siberian Husky)
Pyrite
Iron Sulfide (FeS2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (Primary mineral: SiO2)
Mica Schist
Mica Schist (primarily Muscovite and/or Biotite composition)
Pink Quartzite
Metamorphosed Quartz Arenite (SiO2)
Quartzite
Quartzite (SiO2)
Amber (Cherry or Red variety)
Succinite (with various trace amounts of organic compounds)
Phyllite
Phyllite
Anthracite Coal
Anthracite (high-rank coal)
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Ruby (in costume jewelry context)
Corundum (Al2O3) with Chromium impurities
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
N/A (This is a digital image of a bar graph)
Digital Data Visualization (Bar Chart)
Diamond Plate (Steel)
Alloyed Carbon Steel or Aluminum with 'Durbar' pattern
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Crystal Quartz Beads (likely Clear Quartz)
Quartz (SiO₂)
Milky Quartz (with potential inclusion)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Bauxite
Bauxite (Al(OH)3, AlO(OH))
Jasper
Silicon Dioxide (SiO2)
Dragon Blood Jasper
Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Chert (Iron-stained)
Chert (SiO2 - Silicon Dioxide)
Jasper
Silicon dioxide (SiO2)
Diamond
Native Carbon (C)
Limonite (Iron Ore)
Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)
Quartzite Pebble (with iron staining)
Quartzite (SiO2 with ferric oxide impurities)
Bauxite
Hydrated Aluminum Oxides (primarily Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
Fluorite
Calcium Fluoride (CaF2)
Jasper
Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)
Quartz (Milky or Cloudy Quartz)
Quartz (Silicon Dioxide, SiO2)
Carnelian
Chalcedony (SiO2) with iron oxide impurities
Yellow Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with iron oxide (Limonite/Goethite) inclusions
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Schist
Mica Schist (primarily consisting of muscovite, biotite, and quartz)
Travertine (often colloquially called Tufa)
Chemical Sedimentary Calcium Carbonate (CaCO3)
Chalcedony (specifically Blue Chalcedony or Common Opal variety)
Silicon Dioxide (SiO₂)
Shungite
Non-crystalline carbon (allotrope of carbon)
Chalcedony (Agate)
Silicon Dioxide (SiO2)