Rock Identifier

Category

Man Made Material (Anthropogenic 'Mineraloid')

Browse man made material (anthropogenic 'mineraloid') specimens identified by the Rock Identifier community.

Sandstone (likely Quartz Sandstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (likely Quartz Sandstone)

Arenite (SiO2 based)

Sandstone (with minor quartz and possible clay components) (Clastic Sedimentary Rock (SiO2 dominated)) — sedimentary

Sandstone (with minor quartz and possible clay components)

Clastic Sedimentary Rock (SiO2 dominated)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Ferruginous) (Arenite (with iron oxide cement, Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite (with iron oxide cement, Fe2O3)

Sandstone (Arenite (primarily SiO2 - Silicon Dioxide)) — sedimentary

Sandstone

Arenite (primarily SiO2 - Silicon Dioxide)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Sandstone (Quartzose Sandstone)

Arenite (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

Rhodochrosite (Manganese carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese carbonate (MnCO3)

Moss Agate (Chalcedony (Silicon Dioxide - SiO2) with inclusions) — Mineral

Moss Agate

Chalcedony (Silicon Dioxide - SiO2) with inclusions

Chert (Chalcedony/Agate) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Chalcedony/Agate)

Microcrystalline Quartz (SiO2)

Rhodonite (in matrix) (Rhodonite (Mn,Fe,Mg,Ca)SiO3) — Mineral

Rhodonite (in matrix)

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Rough Diamond (Diamond (C)) — mineral

Rough Diamond

Diamond (C)

Diamond (or Diamond Simulant) (Carbon (C) - Native Element) — mineral

Diamond (or Diamond Simulant)

Carbon (C) - Native Element

Scoria (Basaltic Lava Rock) (Vesicular Basalt) — igneous

Scoria (Basaltic Lava Rock)

Vesicular Basalt

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Green variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Green variety)

Silicon Dioxide (SiO2)

Peridot (Olivine) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Peridot (Olivine)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Sandstone (with potential trace fossils) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with potential trace fossils)

Clastic sedimentary rock (primarily SiO2)

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Jasper (Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)) — sedimentary

Jasper

Jasper (Silica-rich microcrystalline Quartz, SiO2 with Fe2O3 impurities)

Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

Petrified Wood (Silicified Wood (primarily SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

Olivine (Peridotite) (Magnesium Iron Silicate - (Mg, Fe)2SiO4) — igneous

Olivine (Peridotite)

Magnesium Iron Silicate - (Mg, Fe)2SiO4

Olivine (Peridotite) (Olivine Group; (Mg, Fe)2SiO4) — igneous

Olivine (Peridotite)

Olivine Group; (Mg, Fe)2SiO4

Sandstone (likely Graywacke or Arkose variant) (Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)) — sedimentary

Sandstone (likely Graywacke or Arkose variant)

Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)

Fossiliferous Chert (with Fossil Shells) (Silicon Dioxide (SiO2) with biogenic inclusions) — sedimentary

Fossiliferous Chert (with Fossil Shells)

Silicon Dioxide (SiO2) with biogenic inclusions

Rose Quartz (likely carved) (Rose Quartz (SiO2)) — Mineral

Rose Quartz (likely carved)

Rose Quartz (SiO2)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Yellow Chert or Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Chert or Jasper

Silicon Dioxide (SiO2)

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

Brown Jasper (Likely)

Jasper (Cryptocrystalline Silicon Dioxide - SiO2)

Wood Paneling (Engineered Wood / Plywood Paneling) — not a rock

Wood Paneling

Engineered Wood / Plywood Paneling

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — Mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Limonite (Iron Ore) (Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)

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

Rhodonite

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

Olivine (Peridot) (Magnesium Iron Silicate (Mg, Fe)2SiO4) — Mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4