Chert (varietal Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Chert (varietal Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Garnet (Almandine variety)
Almandine Garnet (Fe3Al2(SiO4)3)
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
Diabase
Diabase (also known as Dolerite)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Quartzite River Stone
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Seraphinite
Clinochlore (Mg,Fe)5Al(AlSi3O10)(OH)8 - specific variety for Seraphinite due to its fibrous inclusions and chatoyancy.
Gold-bearing Quartz
Auriferous Quartz (SiO2 with Native Gold inclusion)
Blue Calcite
Calcium Carbonate (CaCO3)
Aquamarine
Beryl (Be3Al2Si6O18 with iron traces)
Glauconitic Sandstone (Greensand)
Glauconitic Sandstone (Iron-potassium phyllosilicate mineral: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)
Quartzite
Quartzite (primarily SiO2)
Blue Dyed Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Chert / Jasper
Silicon Dioxide (SiO₂)
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert / Yellow Jasper
Silicon Dioxide (SiO2)
Fulgurite
Lechatelierite (Silica glass), typically SiO2
Clay (as a rock-forming material)
Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)
Quartzite (River Stone)
Quartzite (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Asphalt / Bituminous Aggregate
Bituminous mixture (Hydrocarbon-based sediment)
Milky Quartz
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Diamond
Carbon (C)
Quartz-veined Metamorphic Rock
Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Peridot
Olivine ((Mg, Fe)2SiO4)
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Limestone
Calcium Carbonate (CaCO3)
Amethyst and Limestone
Amethyst (SiO2 - Silicon Dioxide) and Limestone (CaCO3 - Calcium Carbonate)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Basalt (Vesicular)
Basalt
Chert (with Limestone/Carbonate matrix)
Sedimentary cryptocrystalline silica (SiO2)