Rock Identifier

Category

Anthropogenic (Man Made Industrial Deposit)

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

Red Garnet (Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)) — mineral

Red Garnet

Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)

mineral
Quartz (Granular Milky Quartz fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Granular Milky Quartz fragment)

Silicon Dioxide (SiO2)

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

Rhodonite

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

mineral
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Halite (Halite (NaCl)) — mineral

Halite

Halite (NaCl)

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

Quartz (Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

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

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

mineral
Beach Quartzite (Yellow-stained Quartz) (Quartzite (SiO2 with Iron oxide staining)) — metamorphic

Beach Quartzite (Yellow-stained Quartz)

Quartzite (SiO2 with Iron oxide staining)

metamorphic
Green Kyanite (Kyanite (Al2SiO5)) — mineral

Green Kyanite

Kyanite (Al2SiO5)

mineral
Milky Quartz (Quartz Vein) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

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

Quartz (specifically Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

mineral
Rhodochrosite (Beads) and Citrine (Pendant) (Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)) — mineral

Rhodochrosite (Beads) and Citrine (Pendant)

Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)

mineral
Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

mineral
Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

mineral
Halite (Halite (Sodium Chloride, NaCl)) — mineral

Halite

Halite (Sodium Chloride, NaCl)

mineral
Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

igneous
Granite Pebble (Igneous Intrusive Rock (Quartz-Feldspar-Mica Phenocrysts)) — igneous

Granite Pebble

Igneous Intrusive Rock (Quartz-Feldspar-Mica Phenocrysts)

igneous
Olivine in Basalt matrix (Peridotite (Mg, Fe)2SiO4) — igneous

Olivine in Basalt matrix

Peridotite (Mg, Fe)2SiO4

igneous
Fluorite (Rainbow Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

mineral
Quartzite Pebble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

metamorphic
Sandstone (Quartzite-rich) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite-rich)

Clastic sedimentary rock (primarily SiO2)

sedimentary
Peridot (Olivine ((Mg, Fe)2SiO4)) — mineral

Peridot

Olivine ((Mg, Fe)2SiO4)

mineral
Snowflake Obsidian (or similar porphyritic volcanic rock) (Obsidian with Spherulites (if glassy), or Porphyritic Rhyolite/Andesite (if crystalline groundmass)) — igneous

Snowflake Obsidian (or similar porphyritic volcanic rock)

Obsidian with Spherulites (if glassy), or Porphyritic Rhyolite/Andesite (if crystalline groundmass)

igneous
Garnet-bearing Schist (Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist) — metamorphic

Garnet-bearing Schist

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

metamorphic
Chert (Quartz Variety) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Quartz Variety)

Chert (Silicon Dioxide, SiO2)

sedimentary
Pearl (incorporated into jewelry) (Aragonite and Calcite (CaCO3)) — mineral

Pearl (incorporated into jewelry)

Aragonite and Calcite (CaCO3)

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

Rhodonite

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

mineral
Basalt (Mafic Volcanic Rock (primarily Plagioclase and Pyroxene)) — Igneous

Basalt

Mafic Volcanic Rock (primarily Plagioclase and Pyroxene)

Igneous
Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

mineral
Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

metamorphic
Quartzite pebble (Quartzite (SiO2)) — metamorphic

Quartzite pebble

Quartzite (SiO2)

metamorphic
Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

mineral
River Cobble (likely Quartzite) (Metamorphosed Sandstone (SiO2)) — metamorphic

River Cobble (likely Quartzite)

Metamorphosed Sandstone (SiO2)

metamorphic
Quartzite River Rock (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Rock

Quartzite (primarily SiO2)

metamorphic
Scoria (Red Lava Rock) (Scoria (Vesicular Basalt/Andesite)) — igneous

Scoria (Red Lava Rock)

Scoria (Vesicular Basalt/Andesite)

igneous
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Pearl (Organic Mineral (CaCO3 with conchiolin)) — mineral

Pearl

Organic Mineral (CaCO3 with conchiolin)

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

Rhodonite

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

mineral
Pearl (Calcium Carbonate (CaCO3) in the form of Aragonite) — mineral

Pearl

Calcium Carbonate (CaCO3) in the form of Aragonite

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

Rhodonite

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

mineral
Pearl (as a Biogenic Mineral) (Calcium Carbonate (mostly Aragonite) with Conchiolin; CaCO3) — mineral

Pearl (as a Biogenic Mineral)

Calcium Carbonate (mostly Aragonite) with Conchiolin; CaCO3

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

Rhodonite

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

mineral