Rock Identifier

Category

Industrial Byproduct (Anthropogenic Material)

Browse industrial byproduct (anthropogenic material) specimens identified by the Rock Identifier community.

Quartz (Druzy on Matrix) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy on Matrix)

Silicon Dioxide (SiO2)

Quartz (Iron-stained or Ferruginous Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained or Ferruginous Quartz)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (predominantly SiO2)) — metamorphic

Quartzite

Quartzite (predominantly SiO2)

Marble (Carrara style) (Recrystallized Calcite-rich Metamorphic Rock (CaCO3)) — metamorphic

Marble (Carrara style)

Recrystallized Calcite-rich Metamorphic Rock (CaCO3)

Sandstone (Yellow/Tan Sandstone) (Arenite (primarily Quartz, SiO2)) — sedimentary

Sandstone (Yellow/Tan Sandstone)

Arenite (primarily Quartz, SiO2)

Desert Rose (Gypsum (variety Selenite) or Barite, CaSO4·2H2O) — mineral

Desert Rose

Gypsum (variety Selenite) or Barite, CaSO4·2H2O

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Red Sandstone (Clastic Terrigenous Sedimentary Rock (composed mostly of SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Clastic Terrigenous Sedimentary Rock (composed mostly of SiO2 with Fe2O3)

Chalcedony in Limestone Host Rock (Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)) — Mineral within Sedimentary Rock

Chalcedony in Limestone Host Rock

Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)

Mineral within Sedimentary Rock

Shiva Lingam (Cryptocrystalline Quartz (Jasproid/Jasper)) — sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasproid/Jasper)

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Blue Sapphire (Synthetic or Man-made Glass Imitation) (Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic) — mineral

Blue Sapphire (Synthetic or Man-made Glass Imitation)

Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic

Banded Agate (with possible Chalcedony layers) (Silicon dioxide (SiO2)) — sedimentary

Banded Agate (with possible Chalcedony layers)

Silicon dioxide (SiO2)

Pegmatite (Pegmatitic Granite) — igneous

Pegmatite

Pegmatitic Granite

Quartz with Iron Oxide Inclusions (SiO2 with Fe2O3 impurities) — Mineral

Quartz with Iron Oxide Inclusions

SiO2 with Fe2O3 impurities

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Sodalite (Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Sandstone (likely Quartzose Sandstone) (Arenite (SiO2 predominantly)) — sedimentary

Sandstone (likely Quartzose Sandstone)

Arenite (SiO2 predominantly)

Milk Quartz (with Iron staining) (Silicon Dioxide (SiO2)) — mineral

Milk Quartz (with Iron staining)

Silicon Dioxide (SiO2)

Kunzite (Spodumene) (Spodumene (LiAlSi2O6)) — mineral

Kunzite (Spodumene)

Spodumene (LiAlSi2O6)

Rough Ruby (Corundum (Al2O3 with Chromium impurities)) — mineral

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Garnet (Almandine variety) (Almandine Garnet (Fe3Al2(SiO4)3)) — mineral

Garnet (Almandine variety)

Almandine Garnet (Fe3Al2(SiO4)3)

Quartz (Milky/Smoky variety on matrix) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Diamond (or Cubic Zirconia) (Carbon (C) or Zirconium Dioxide (ZrO2)) — mineral

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Diamond (in jewelry setting) (Diamond (C - Carbon)) — mineral

Diamond (in jewelry setting)

Diamond (C - Carbon)

Granite (Phaneritic Igneous Rock) (Granite) — igneous

Granite (Phaneritic Igneous Rock)

Granite

Sandstone (likely Iron-rich or Arkosic) (Arenite (SiO2 with FeO(OH) or Fe2O3 staining)) — sedimentary

Sandstone (likely Iron-rich or Arkosic)

Arenite (SiO2 with FeO(OH) or Fe2O3 staining)

Orange Calcite (Calcite (Calcium Carbonate - CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate - CaCO3)

Diamond (in jewelry) (Diamond (Carbon, C)) — mineral

Diamond (in jewelry)

Diamond (Carbon, C)

Vanadinite (Lead Chlorovanadate - Pb5(VO4)3Cl) — mineral

Vanadinite

Lead Chlorovanadate - Pb5(VO4)3Cl

Quartz (Milky/Yellowish) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Yellowish)

Silicon Dioxide (SiO2)

Granitic Pegmatite (Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)) — igneous

Granitic Pegmatite

Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Anthracite Coal (Anthracite (Metamorphosed Coal)) — sedimentary

Anthracite Coal

Anthracite (Metamorphosed Coal)

Quartz (River Pebble) (Silicon Dioxide (SiO₂)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO₂)

Druzzy Quartz on Matrix (Silicon Dioxide (SiO2)) — mineral

Druzzy Quartz on Matrix

Silicon Dioxide (SiO2)

Rough Ruby (Corundum) in Zoisite Matrix (Al2O3 (Aluminum Oxide) with Ca2Al3(SiO4)3(OH)) — mineral

Rough Ruby (Corundum) in Zoisite Matrix

Al2O3 (Aluminum Oxide) with Ca2Al3(SiO4)3(OH)

Red Jasper (possibly Brecciated) (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Red Jasper (possibly Brecciated)

Jasper (Silicon Dioxide, SiO2)

Quartz Crystal with Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal with Inclusions

Silicon Dioxide (SiO2)

Porphyritic Basalt (or Porphyry) (Porphyritic Basalt (Mafic volcanic rock with phenocrysts)) — igneous

Porphyritic Basalt (or Porphyry)

Porphyritic Basalt (Mafic volcanic rock with phenocrysts)