Rock Identifier

Category

Mineral (Evaporite)

Browse mineral (evaporite) specimens identified by the Rock Identifier community.

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

Diamond

Diamond (pure Carbon, C)

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Inclusions

Quartz (Silicon Dioxide, SiO2)

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

Diamond (in a jewelry setting)

Carbon (C)

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

Milky Quartz Cobble

Silicon Dioxide (SiO2)

Aquamarine (Beryl (Be₃Al₂Si‑₆O₁₈)) — mineral

Aquamarine

Beryl (Be₃Al₂Si‑₆O₁₈)

Diamond (Cubic carbon (C)) — mineral

Diamond

Cubic carbon (C)

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Orca Agate (Blue Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Orca Agate (Blue Chalcedony)

Silicon Dioxide (SiO2)

Red Sandstone (Arenite (ferruginous sandstone)) — sedimentary

Red Sandstone

Arenite (ferruginous sandstone)

Rough Corundum (likely Sapphire/Zircon-bearing) (Aluminium Oxide (Al2O3)) — mineral

Rough Corundum (likely Sapphire/Zircon-bearing)

Aluminium Oxide (Al2O3)

Diamond (or high-quality simulant like Cubic Zirconia) (Carbon (C) - Native Element) — mineral

Diamond (or high-quality simulant like Cubic Zirconia)

Carbon (C) - Native Element

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

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

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Barite (Barium Sulfate (BaSO4)) — mineral

Barite

Barium Sulfate (BaSO4)

Schist (Schist (metamorphic rock)) — metamorphic

Schist

Schist (metamorphic rock)

Vesicular Basalt with Amygdules (Amygdaloidal Basalt) — igneous

Vesicular Basalt with Amygdules

Amygdaloidal Basalt

Quartzite with Quartz Vein (Metamorphosed Quartz-rich Arenite (SiO2)) — metamorphic

Quartzite with Quartz Vein

Metamorphosed Quartz-rich Arenite (SiO2)

Bumblebee Jasper (technically a type of Agate/Anhydrite) (Calcite and Anhydrite with inclusions of Realgar and Orpiment (As2S3)) — sedimentary

Bumblebee Jasper (technically a type of Agate/Anhydrite)

Calcite and Anhydrite with inclusions of Realgar and Orpiment (As2S3)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Granite (Granite (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)

Green Aventurine (Silicon Dioxide (SiO2 with Fuchsite inclusions)) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2 with Fuchsite inclusions)

Asphalt (Bituminous Concrete) (Bituminous Concrete / Pavement) — man-made (synthetic rock)

Asphalt (Bituminous Concrete)

Bituminous Concrete / Pavement

man-made (synthetic rock)

Granite (Granite) — igneous

Granite

Granite

River Stone (likely Siltstone or fine-grained Sandstone) (Clastic Sedimentary Rock (Lithic Wacke / Siltstone)) — sedimentary

River Stone (likely Siltstone or fine-grained Sandstone)

Clastic Sedimentary Rock (Lithic Wacke / Siltstone)

Jasper (Milky/Cream Variety) (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary (chemical/biological)

Jasper (Milky/Cream Variety)

Silicon Dioxide (SiO2) - variety of Chalcedony

sedimentary (chemical/biological)

Crushed Stone (Gravel/Aggregates) (Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)) — sedimentary and igneous (mixed)

Crushed Stone (Gravel/Aggregates)

Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)

sedimentary and igneous (mixed)

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

Granite (Pegmatitic)

Phaneritic Felsic Igneous Rock

Mica Schist (Mica Schist (predominantly Muscovite or Biotite)) — metamorphic

Mica Schist

Mica Schist (predominantly Muscovite or Biotite)

Basalt (Basalt (composition of plagioclase feldspar and pyroxene)) — igneous

Basalt

Basalt (composition of plagioclase feldspar and pyroxene)

Basalt (Mafic Extrusive Igneous Rock) — Igneous

Basalt

Mafic Extrusive Igneous Rock

Granite (Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Granite Pebble (Salt and Pepper Granite) (Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Biotite/Amphibole)) — igneous

Granite Pebble (Salt and Pepper Granite)

Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Biotite/Amphibole)

Vesicular Basalt (Basalt with secondary mineral infilling (Amygdaloidal Basalt)) — igneous

Vesicular Basalt

Basalt with secondary mineral infilling (Amygdaloidal Basalt)

Chert (Septarian Concretion/Nodule) (Microcrystalline silica (SiO2) with carbonate mineral veining) — sedimentary

Chert (Septarian Concretion/Nodule)

Microcrystalline silica (SiO2) with carbonate mineral veining

Sulfur (on Matrix) (Native Sulfur (S8)) — mineral

Sulfur (on Matrix)

Native Sulfur (S8)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Vesicular Basalt (or Scoria) (Vesicular Basalt (Aphanitic-vesicular volcanic rock)) — igneous

Vesicular Basalt (or Scoria)

Vesicular Basalt (Aphanitic-vesicular volcanic rock)

Green Aventurine and Clear Quartz (Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)) — Mineral

Green Aventurine and Clear Quartz

Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)