Rock Identifier

Category

Sedimentary (Base), Then Artificial

Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.

Dendritic Agate (Chalcedony (SiO2) with manganese/iron oxide inclusions) — mineral

Dendritic Agate

Chalcedony (SiO2) with manganese/iron oxide inclusions

Rhyolitic Tuff (Rhyolitic Tuff / Pyroclastic rock) — igneous

Rhyolitic Tuff

Rhyolitic Tuff / Pyroclastic rock

Tree Agate (Dendritic Agate (Silicon Dioxide, SiO2)) — mineral

Tree Agate

Dendritic Agate (Silicon Dioxide, SiO2)

Slate (Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)) — metamorphic

Slate

Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)

Orange Tabby (Felis catus) (Felis silvestris catus (variety: Red Mackerel Tabby)) — Organic/Biological specimen (Non-Mineral)

Orange Tabby (Felis catus)

Felis silvestris catus (variety: Red Mackerel Tabby)

Organic/Biological specimen (Non-Mineral)

Granite Pegmatite (Coarse-grained Granite (SiO2 - Aluminum and Alkalies)) — igneous

Granite Pegmatite

Coarse-grained Granite (SiO2 - Aluminum and Alkalies)

Green Tiger's Eye (Silicified Crocidolite (Quartz variety, SiO2)) — metamorphic

Green Tiger's Eye

Silicified Crocidolite (Quartz variety, SiO2)

Beryllonite (Beryllonite (NaBePO4)) — mineral

Beryllonite

Beryllonite (NaBePO4)

Citrine (Citrine (Silicon Dioxide - SiO2)) — mineral

Citrine

Citrine (Silicon Dioxide - SiO2)

Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Moss Agate (Chalcedony (SiO2) with dendritic inclusions of Manganese or Iron oxide) — mineral

Moss Agate

Chalcedony (SiO2) with dendritic inclusions of Manganese or Iron oxide

Chrysocolla on Quartz/Rhyolite matrix (Hydrated copper phyllosilicate mineral: (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla on Quartz/Rhyolite matrix

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

Citrine Quartz (Silicon Dioxide (SiO2) - Ferric Iron impurities) — mineral

Citrine Quartz

Silicon Dioxide (SiO2) - Ferric Iron impurities

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Citrine (Silicon Dioxide (SiO2) with ferric iron impurities) — mineral

Citrine

Silicon Dioxide (SiO2) with ferric iron impurities

Epidosite (Epidote-rich rock) (Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))) — metamorphic

Epidosite (Epidote-rich rock)

Epidosite (consisting primarily of Epidote: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

Basalt (Basalt (Aphanitic Mafic Igneous Rock)) — igneous

Basalt

Basalt (Aphanitic Mafic Igneous Rock)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Basalt (Mafic extrusive igneous rock) — igneous

Basalt

Mafic extrusive igneous rock

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Diorite (Polished River Stone) (Intrusive Igneous Diorite) — igneous

Diorite (Polished River Stone)

Intrusive Igneous Diorite

Basalt River Cobble (Basalt) — igneous

Basalt River Cobble

Basalt

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Basalt (Basalt) — igneous

Basalt

Basalt

Gabbro (Gabbro (Mg, Fe)2Si2O6 / (Ca, Na)(Al, Si)4O8) — igneous

Gabbro

Gabbro (Mg, Fe)2Si2O6 / (Ca, Na)(Al, Si)4O8

Amygdaloidal Basalt (Vesicular-Amygdaloidal Basalt (Mafic Extrusive)) — igneous

Amygdaloidal Basalt

Vesicular-Amygdaloidal Basalt (Mafic Extrusive)

Basalt River Pebble (Basalt (Aphanitic Mafic Volcanic Rock)) — igneous

Basalt River Pebble

Basalt (Aphanitic Mafic Volcanic Rock)

Granite (Weathered) (Plutonic Igneous Rock (Granitic)) — igneous

Granite (Weathered)

Plutonic Igneous Rock (Granitic)

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt) (Porphyritic Basalt (primarily SiO2, Al2O3, FeO, MgO, CaO)) — igneous

Basalt with Plagioclase Phenocrysts (Porphyritic Basalt)

Porphyritic Basalt (primarily SiO2, Al2O3, FeO, MgO, CaO)

Basalt with Plagioclase Feldspar (Basalt (mafic extrusive igneous rock) with plagioclase feldspar phenocrysts) — Igneous

Basalt with Plagioclase Feldspar

Basalt (mafic extrusive igneous rock) with plagioclase feldspar phenocrysts

Basalt with Epidote Veining (Basalt (Mafic Extrusive Rock) with Ca2(Al,Fe)3(SiO4)3(OH)) — igneous

Basalt with Epidote Veining

Basalt (Mafic Extrusive Rock) with Ca2(Al,Fe)3(SiO4)3(OH)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Basalt (Polished pebble) (Basalt (Aphanitic mafic volcanic rock)) — igneous

Basalt (Polished pebble)

Basalt (Aphanitic mafic volcanic rock)

Basalt (Vesicular and Scoria) (Basalt (extrusive volcanic rock)) — igneous

Basalt (Vesicular and Scoria)

Basalt (extrusive volcanic rock)

Porphyritic Basalt (Porphyritic Basalt (with Plagioclase phenocrysts)) — igneous

Porphyritic Basalt

Porphyritic Basalt (with Plagioclase phenocrysts)

Basalt Cobble (Aphanitic Mafic Igneous Rock (Basalt)) — igneous

Basalt Cobble

Aphanitic Mafic Igneous Rock (Basalt)

Diorite (Diorite (Intermediate intrusive igneous rock)) — igneous

Diorite

Diorite (Intermediate intrusive igneous rock)

Basalt (Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)) — igneous

Basalt

Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)

Basalt with Quartz Veins (Basalt (complex silicate) with Quartz (SiO2) intrusions) — igneous

Basalt with Quartz Veins

Basalt (complex silicate) with Quartz (SiO2) intrusions