Rock Identifier

Category

Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)

Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Cloudy Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Cloudy Quartz

Quartz (Silicon Dioxide, SiO2)

Stichtite in Serpentine (Atlantisite) (Mg6Cr2CO3(OH)16·4H2O (Stichtite) / Mg3Si2O5(OH)4 (Serpentine)) — metamorphic

Stichtite in Serpentine (Atlantisite)

Mg6Cr2CO3(OH)16·4H2O (Stichtite) / Mg3Si2O5(OH)4 (Serpentine)

Aquamarine (Beryl (Be3Al2Si6O18), specifically the blue-green variety) — Mineral

Aquamarine

Beryl (Be3Al2Si6O18), specifically the blue-green variety

Vesicular Basalt with Secondary Mineral Infill (Mafic Volcanic Rock (Basalt)) — igneous

Vesicular Basalt with Secondary Mineral Infill

Mafic Volcanic Rock (Basalt)

Porphyritic Basalt (with Quartz or Calcite inclusion) (Porphyritic Basalt (Matrix: SiO2/MgO/FeO, Phenocryst: likely Quartz or Calcite)) — igneous

Porphyritic Basalt (with Quartz or Calcite inclusion)

Porphyritic Basalt (Matrix: SiO2/MgO/FeO, Phenocryst: likely Quartz or Calcite)

Black Tourmaline (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

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

Amethyst

Amethyst (Silicon Dioxide with iron impurities), SiO2

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Dragon Vein Agate (Chalcedony (Quartz) - SiO2) — mineral

Dragon Vein Agate

Chalcedony (Quartz) - SiO2

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

Citrine Quartz Crystal Cluster

Silicon Dioxide (SiO2) with iron impurities

Mica Schist (Mica Schist (contains Muscovite/Biotite, Quartz)) — metamorphic

Mica Schist

Mica Schist (contains Muscovite/Biotite, Quartz)

Iron Slag (Vitreous glassy waste (Fe-Si-Al-Ca compounds)) — Mineral byproduct (anthropogenic / techno-fossil)

Iron Slag

Vitreous glassy waste (Fe-Si-Al-Ca compounds)

Mineral byproduct (anthropogenic / techno-fossil)

Schist (Graphite or Mica rich) (Crystalline Schist (often containing Muscovite, Biotite, or Graphite)) — metamorphic

Schist (Graphite or Mica rich)

Crystalline Schist (often containing Muscovite, Biotite, or Graphite)

Basalt (Road Aggregate / Crushed Stone) (Aphanitic Mafic Igneous Rock) — igneous

Basalt (Road Aggregate / Crushed Stone)

Aphanitic Mafic Igneous Rock

Diopside (likely Chromian Diopside) (Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.) — mineral

Diopside (likely Chromian Diopside)

Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.

Mica Schist (Muscovite/Biotite Schist) — metamorphic

Mica Schist

Muscovite/Biotite Schist

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

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Corundum (Corundum (Aluminium oxide, Al2O3)) — mineral

Corundum

Corundum (Aluminium oxide, Al2O3)

Milky Quartz (Silicon Dioxide (SiO2)) — Mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Citrine Quartz

Silicon Dioxide (SiO2) - Ferric Iron impurities

Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions (SiO2 + Mn/Fe)) — mineral

Dendritic Agate

Silicon Dioxide with Manganese or Iron Oxide inclusions (SiO2 + Mn/Fe)

Amazonite (K(AlSi3O8)) — mineral

Amazonite

K(AlSi3O8)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Bornite (Peacock Ore) (Bornite (Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Serpentinite (Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)

Smoky Quartz (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz (Tumbled)

Silicon Dioxide (SiO2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Banded Gneiss with Quartz Vein (Foliated Metamorphic Rock (Gneiss)) — metamorphic

Banded Gneiss with Quartz Vein

Foliated Metamorphic Rock (Gneiss)

Sandstone (Red) (Arenite (primarily Quartz, SiO2, with Iron Oxide cement)) — sedimentary

Sandstone (Red)

Arenite (primarily Quartz, SiO2, with Iron Oxide cement)

Schist with Quartz/Mica (Mica Schist (primarily Muscovite and Quartz)) — Metamorphic

Schist with Quartz/Mica

Mica Schist (primarily Muscovite and Quartz)

Diorite (Diorite) — igneous

Diorite

Diorite

Chert (Red Jasper variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Red Jasper variant)

Microcrystalline Quartz (SiO2)

Red Jasper (nodule) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper (nodule)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Brown Jasper (Jasper (a cryptocrystalline variety of Quartz, SiO2)) — Mineral, specifically a variety of Quartz

Brown Jasper

Jasper (a cryptocrystalline variety of Quartz, SiO2)

Mineral, specifically a variety of Quartz

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities

Basalt (Mafic volcanic rock (primarily Plagioclase and Pyroxene)) — igneous

Basalt

Mafic volcanic rock (primarily Plagioclase and Pyroxene)

Vesicular Basalt (Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 (Pyroxene) and (Ca,Na)Al(Al,Si)Si2O8 (Plagioclase Feldspar)) — igneous

Vesicular Basalt

Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 (Pyroxene) and (Ca,Na)Al(Al,Si)Si2O8 (Plagioclase Feldspar)

Gneiss (River Cobble) (Gneiss (Foliated Metamorphic Rock)) — metamorphic

Gneiss (River Cobble)

Gneiss (Foliated Metamorphic Rock)