Rock Identifier

Category

Anthropogenic (Man Made Industrial Deposit)

Browse anthropogenic (man made industrial deposit) specimens identified by the Rock Identifier community.

Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

Larimar (Pectolite (a blue variety of Pectolite)) — Mineral

Larimar

Pectolite (a blue variety of Pectolite)

Brown Jasper (Likely) (Jasper (Cryptocrystalline Silicon Dioxide - SiO2)) — Mineral

Brown Jasper (Likely)

Jasper (Cryptocrystalline Silicon Dioxide - SiO2)

Iron-stained Quartz (Gossan/Limonite-coated Quartz) (Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)) — mineral

Iron-stained Quartz (Gossan/Limonite-coated Quartz)

Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)

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

Diamond (in jewelry)

Carbon (C)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Agate (Dyed High-Grade Polished Slice) (Silicon dioxide (SiO2), Chalcedony crystal variety) — mineral

Agate (Dyed High-Grade Polished Slice)

Silicon dioxide (SiO2), Chalcedony crystal variety

Gold Ore in Quartz (Auriferous Quartz (Au + SiO2)) — igneous

Gold Ore in Quartz

Auriferous Quartz (Au + SiO2)

Silver (Native Silver Mineral) (Ag (Native Silver), Alloyed 90% Ag / 10% Cu) — mineral

Silver (Native Silver Mineral)

Ag (Native Silver), Alloyed 90% Ag / 10% Cu

Diamond (Diamond (pure Carbon, C)) — mineral

Diamond

Diamond (pure Carbon, C)

Black Sapphire (Corundum (Al2O3 with inclusions of hematite or ilmenite)) — mineral

Black Sapphire

Corundum (Al2O3 with inclusions of hematite or ilmenite)

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Sandstone (Arenite (composed primarily of Quartz: SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of Quartz: SiO2)

Garnet Beads (Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)) — Mineral

Garnet Beads

Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)

Diamond (Diamond (Pure Carbon - C)) — mineral

Diamond

Diamond (Pure Carbon - C)

Chalcedony (or a variety of Chalcedony, likely Agate or Jasper) (Chalcedony (SiO₂)) — Mineral (or mineraloid if microcrystalline)

Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)

Chalcedony (SiO₂)

Mineral (or mineraloid if microcrystalline)

Amethyst and Limestone (Amethyst (SiO2 - Silicon Dioxide) and Limestone (CaCO3 - Calcium Carbonate)) — The purple specimen is a mineral (Amethyst); the white specimen is a sedimentary rock (Limestone or Marble).

Amethyst and Limestone

Amethyst (SiO2 - Silicon Dioxide) and Limestone (CaCO3 - Calcium Carbonate)

The purple specimen is a mineral (Amethyst); the white specimen is a sedimentary rock (Limestone or Marble).

Serpentine (Nephrite-like River Cobble) (Serpentinite (Hydrous Magnesium Iron Silicate)) — metamorphic

Serpentine (Nephrite-like River Cobble)

Serpentinite (Hydrous Magnesium Iron Silicate)

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

Garnet

Almandine (Fe3Al2(SiO4)3)

Limonite (Iron Ore) (Hydrous Iron Oxide (goethite, lepidocrocite)) — Mineral

Limonite (Iron Ore)

Hydrous Iron Oxide (goethite, lepidocrocite)

Native Copper (Native Copper (Cu)) — mineral

Native Copper

Native Copper (Cu)

Blue Sapphire (faceted in jewelry) (Corundum (Al2O3)) — mineral

Blue Sapphire (faceted in jewelry)

Corundum (Al2O3)

Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead) (Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)) — Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)

Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead)

Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)

Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)

Silver (Jewelry Specimen) (Native Silver (Chemical Formula: Ag)) — mineral

Silver (Jewelry Specimen)

Native Silver (Chemical Formula: Ag)

Chalk (CaCO3 (primarily Calcium Carbonate), biogenic sedimentary rock) — Sedimentary

Chalk

CaCO3 (primarily Calcium Carbonate), biogenic sedimentary rock

Orange Calcite (often commercially sold as Honey Calcite or Aragonite) (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite (often commercially sold as Honey Calcite or Aragonite)

Calcium Carbonate (CaCO3)

Banded Agate (Gray Agate) (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Banded Agate (Gray Agate)

Silicon Dioxide (SiO2) - Chalcedony

Ruby (Pinkish-Red) (Corundum (Al2O3 with Chromium trace)) — mineral

Ruby (Pinkish-Red)

Corundum (Al2O3 with Chromium trace)

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

Rough Ruby

Corundum (Al2O3) with Chromium traces

Gold (Aurum (Au)) — Mineral (Metal)

Gold

Aurum (Au)

Mineral (Metal)

Water and Silt (Sedimentary Environment) (Suspended Sediment / H2O (dihydrogen monoxide)) — sedimentary

Water and Silt (Sedimentary Environment)

Suspended Sediment / H2O (dihydrogen monoxide)

Arsenopyrite with Quartz (Arsenopyrite (FeAsS)) — mineral

Arsenopyrite with Quartz

Arsenopyrite (FeAsS)

Erythrite (or Lab-Grown Cobaltite/Cinnabar Analog) (Erythrite (Co3(AsO4)2·8H2O)) — mineral

Erythrite (or Lab-Grown Cobaltite/Cinnabar Analog)

Erythrite (Co3(AsO4)2·8H2O)

Nickel (Nickel (Ni)) — mineral

Nickel

Nickel (Ni)

Ferruginous Quartz (Silicon Dioxide (SiO2) with Hematite/Limonite impurities) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Quartzite Pebbles (Quartzite (SiO2)) — metamorphic

Quartzite Pebbles

Quartzite (SiO2)

Seraphinite (Clinochlore (Mg,Fe)5Al(AlSi3O10)(OH)8 - specific variety for Seraphinite due to its fibrous inclusions and chatoyancy.) — Mineral

Seraphinite

Clinochlore (Mg,Fe)5Al(AlSi3O10)(OH)8 - specific variety for Seraphinite due to its fibrous inclusions and chatoyancy.

Banded Chert (Flint/Jasper variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert (Flint/Jasper variety)

Microcrystalline Quartz (SiO2)

Yellow Quartz (Citrine or Quartzite Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

Black Sapphire (Corundum (Al2O3 with iron and titanium impurities)) — mineral

Black Sapphire

Corundum (Al2O3 with iron and titanium impurities)

Rough Green Sapphire (Corundum) (Corundum (Al2O3 - Aluminum Oxide with trace elements)) — mineral

Rough Green Sapphire (Corundum)

Corundum (Al2O3 - Aluminum Oxide with trace elements)

Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)