Rock Identifier

Category

Man Made Alloy (Metallic)

Browse man made alloy (metallic) specimens identified by the Rock Identifier community.

Learn about Man Made Alloy (Metallic) in the encyclopedia

Opalite

Goldstone

Copper

Gold

Map Jasper

Silver

Blue Goldstone

Bronze Sheen Obsidian

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Marl

Sunstone (Heliolite (Aventurine Feldspar, (Ca,Na)((Al,Si)2Si2O8))) — mineral

Sunstone

Heliolite (Aventurine Feldspar, (Ca,Na)((Al,Si)2Si2O8))

Specularite (Specular Hematite) (Iron Oxide (Fe2O3)) — mineral

Specularite (Specular Hematite)

Iron Oxide (Fe2O3)

Pyrite with Galena and Sphalerite on Matrix (Iron Sulfide (FeS2), Lead Sulfide (PbS), Zinc Sulfide (ZnS)) — mineral

Pyrite with Galena and Sphalerite on Matrix

Iron Sulfide (FeS2), Lead Sulfide (PbS), Zinc Sulfide (ZnS)

Diabase (Dolerite) (Diabase) — igneous

Diabase (Dolerite)

Diabase

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

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

Sandstone

Arenite (composed primarily of SiO2)

Pink Granite (Alkali-feldspar Granite) (Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)) — igneous

Pink Granite (Alkali-feldspar Granite)

Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)

Sandstone (Ferruginous) (Arenite (SiO2 with Fe2O3 inclusions)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3 inclusions)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Sandstone

Arenite (composed primarily of SiO2)

Limestone Pebble (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone Pebble

Sedimentary Calcium Carbonate (CaCO3)

Chalcedony (Agate/Chert variety) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Chert variety)

Silicon Dioxide (SiO2)

Sandstone (Arenite (variable SiO2 composition)) — sedimentary

Sandstone

Arenite (variable SiO2 composition)

Precious Coral (Red Coral) (Corallium rubrum (Calcium Carbonate, CaCO3)) — mineral

Precious Coral (Red Coral)

Corallium rubrum (Calcium Carbonate, CaCO3)

Hematite (Specularite) (Fe2O3 (Iron(III) oxide)) — mineral

Hematite (Specularite)

Fe2O3 (Iron(III) oxide)

Coal (Bituminous Coal) (Caustobiolith / Sedimentary Rock) — sedimentary

Coal (Bituminous Coal)

Caustobiolith / Sedimentary Rock

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Iron Meteorite (Siderite (Iron-Nickel Meteorite)) — meteorite

Iron Meteorite

Siderite (Iron-Nickel Meteorite)

Chrysocolla (Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Green cabochon gemstone, likely aventurine or dyed chalcedony (Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony) — gemstone

Green cabochon gemstone, likely aventurine or dyed chalcedony

Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony

Chert / Flint (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Flint

Microcrystalline Quartz (SiO2)

Seven Chakra Bonded Stone (Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz) — metamorphic

Seven Chakra Bonded Stone

Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz

Banded Gneiss (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (Foliated Metamorphic Rock)

Chert (Flint) (SiO2 (Microcrystalline Quartz)) — sedimentary

Chert (Flint)

SiO2 (Microcrystalline Quartz)

Granite (Intrusive Felsic Igneous Rock (primarily Quartz and Feldspar)) — igneous

Granite

Intrusive Felsic Igneous Rock (primarily Quartz and Feldspar)

Chert Arrowhead (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert Arrowhead

Cryptocrystalline Quartz (SiO2)

Chert Nodule (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Quartz (SiO2)

Chert (often called Flint in archaeological contexts) (Silicon Dioxide (SiO2)) — sedimentary

Chert (often called Flint in archaeological contexts)

Silicon Dioxide (SiO2)

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

Diamond

Diamond (pure Carbon, C)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Rough Diamond (Pure Carbon (C)) — mineral

Rough Diamond

Pure Carbon (C)

Obsidian (Volcanic glass) — igneous

Obsidian

Volcanic glass

Chert (Flint nodule) (Chert (SiO2)) — sedimentary

Chert (Flint nodule)

Chert (SiO2)

Sandstone (likely Quartzose) (Clastic sedimentary rock (SiO2 primary)) — sedimentary

Sandstone (likely Quartzose)

Clastic sedimentary rock (SiO2 primary)

Obsidian (Volcanic glass (SiO2)) — igneous

Obsidian

Volcanic glass (SiO2)

Chert (specifically Flint) (Chert (SiO2)) — sedimentary

Chert (specifically Flint)

Chert (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Polished River Pebble) (Chert (SiO2)) — sedimentary

Chert (Polished River Pebble)

Chert (SiO2)

Chert (Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Pearl (Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3) — mineral

Pearl

Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3