Rock Identifier

Category

Mineral Based Human Made Alloy

Browse mineral based human made alloy specimens identified by the Rock Identifier community.

Learn about Mineral Based Human Made Alloy in the encyclopedia

Carbonatite

Claystone

Marl

Dalmatian Jasper

Dalmatian Jasper

Gypsum

Tumbled Gabbro (Gabbro (Mafic intrusive igneous rock)) — igneous

Tumbled Gabbro

Gabbro (Mafic intrusive igneous rock)

Red jasper (likely polished/tumbled) (Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides) — mineral

Red jasper (likely polished/tumbled)

Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides

Iron Ore (Magnetite-Hematite) (Magnetite (Fe3O4) and Hematite (Fe2O3)) — mineral

Iron Ore (Magnetite-Hematite)

Magnetite (Fe3O4) and Hematite (Fe2O3)

Clear Quartz (Rock Crystal) Bead (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal) Bead

Silicon Dioxide (SiO2)

Peach Aventurine (Silicon Dioxide (SiO2) with Hematite/Goethite inclusions) — mineral

Peach Aventurine

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Kyanite (Kyanite (Al2SiO5)) — mineral

Kyanite

Kyanite (Al2SiO5)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Concretion (Septarian Concretion (Fragmentary)) — sedimentary

Concretion

Septarian Concretion (Fragmentary)

Sandstone Clast (Arenite (primarily SiO2)) — sedimentary

Sandstone Clast

Arenite (primarily SiO2)

Dyed Howlite (simulating Lavender/Purple Jade or Charoite) (Howlite: Ca2B5SiO9(OH)5 (when natural)) — Mineral

Dyed Howlite (simulating Lavender/Purple Jade or Charoite)

Howlite: Ca2B5SiO9(OH)5 (when natural)

Basalt (Basalt) — igneous

Basalt

Basalt

Geode or Concretion (Silica-based Concretion / Quartz Geode) — sedimentary

Geode or Concretion

Silica-based Concretion / Quartz Geode

Sandstone (Arenite (SiO2-rich)) — sedimentary

Sandstone

Arenite (SiO2-rich)

Kyanite (in Schist Matrix) (Kyanite (Al2SiO5)) — metamorphic

Kyanite (in Schist Matrix)

Kyanite (Al2SiO5)

Blue calcite (probable) (Calcite — CaCO₃) — mineral

Blue calcite (probable)

Calcite — CaCO₃

Small brown-gray mineral fragment (Indeterminate; possibly weathered quartz-, feldspar-, or iron-oxide-bearing rock) — mineral

Small brown-gray mineral fragment

Indeterminate; possibly weathered quartz-, feldspar-, or iron-oxide-bearing rock

Conglomerate (Clastic Sedimentary Rock (Conglomerate)) — sedimentary

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Limonite (Iron Ore) (Limonite (mixed iron hydroxides, primarily FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (mixed iron hydroxides, primarily FeO(OH)·nH2O)

Sandstone (Arenite (primarily Quartz-based Sandstone)) — sedimentary

Sandstone

Arenite (primarily Quartz-based Sandstone)

Green Gneiss or Greenschist (Chlorite/Actinolite Gneiss or Schist) — metamorphic

Green Gneiss or Greenschist

Chlorite/Actinolite Gneiss or Schist

Sandstone (Red Sandstone) (Arenite (SiO2 based with Fe2O3 staining)) — sedimentary

Sandstone (Red Sandstone)

Arenite (SiO2 based with Fe2O3 staining)

Amethyst Sage Agate (Silicon Dioxide (SiO2) with trace minerals (Manganese/Iron oxides)) — mineral

Amethyst Sage Agate

Silicon Dioxide (SiO2) with trace minerals (Manganese/Iron oxides)

Lemon (Mock specimen mimicking Citrine/Sulfur) (Citrus x limon) — Organic (Biological specimen)

Lemon (Mock specimen mimicking Citrine/Sulfur)

Citrus x limon

Organic (Biological specimen)

Psilomelane (Manganese Ore) (Psilomelane (Ba,H2O)2Mn5O10) — mineral

Psilomelane (Manganese Ore)

Psilomelane (Ba,H2O)2Mn5O10

Iron Meteorite (Candidate) (Iron Meteorite (Siderite)) — mineral

Iron Meteorite (Candidate)

Iron Meteorite (Siderite)

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Coquina / Fossiliferous Limestone (Calcareous bioclastic sedimentary rock (CaCO3)) — sedimentary

Coquina / Fossiliferous Limestone

Calcareous bioclastic sedimentary rock (CaCO3)

Sandstone (River Rock) (Arenite (SiO2 based sedimentary rock)) — sedimentary

Sandstone (River Rock)

Arenite (SiO2 based sedimentary rock)

Chondrite Meteorite (Ordinary Chondrite (L or H Type)) — Mineral

Chondrite Meteorite

Ordinary Chondrite (L or H Type)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Asphalt Concrete (Bituminous conglomerate) — sedimentary

Asphalt Concrete

Bituminous conglomerate

Gypsum Wallboard (Drywall) (Hydrous calcium sulfate (CaSO4·2H2O)) — sedimentary (processed mineral product)

Gypsum Wallboard (Drywall)

Hydrous calcium sulfate (CaSO4·2H2O)

sedimentary (processed mineral product)

Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

Jasper (Silicon Dioxide (Quartz variety, SiO2)) — mineral

Jasper

Silicon Dioxide (Quartz variety, SiO2)

Asphalt (Road Aggregate) (Bituminous conglomerate) — sedimentary

Asphalt (Road Aggregate)

Bituminous conglomerate

Quartz pebble in concrete (Quartz (SiO₂), embedded in Portland-cement concrete) — mineral

Quartz pebble in concrete

Quartz (SiO₂), embedded in Portland-cement concrete

Kidney Stone (Calcium Oxalate (CaC2O4), Uric Acid, or Struvite) — mineral

Kidney Stone

Calcium Oxalate (CaC2O4), Uric Acid, or Struvite

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Pink Granite (Phaneritic Felsic Igneous Rock (Granite)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Chert (Jasper/Flint variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)