Conglomerate
Conglomerate (a clastic sedimentary rock)
Sedimentary Rock
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Composed Of Multiple Minerals) in the encyclopedia
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Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Granite Gneiss
Granitic Gneiss
Metamorphic
Greenschist
Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)
metamorphic
Red Sandstone
Arenite (with Iron Oxide)
sedimentary
Shale
Shale (Sedimentary rock composed of mud/clay minerals)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Auriferous Quartz (Gold-bearing Quartz)
Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides
mineral
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Slate
Low-grade Metamorphic Rock (composed of quartz, illite, chlorite)
metamorphic
Gneiss (foliated metamorphic rock)
Gneiss
metamorphic
Basalt
Mafic Igneous Rock (composed primarily of plagioclase, pyroxene, and olivine)
igneous
Talc
Talc (Mg₃Si₄O₁₀(OH)₂)
Mineral
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Serpentinite
Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)
metamorphic
Schist (Oxidized)
Mica Schist with Iron Oxide staining
metamorphic
Botryoidal Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
igneous
Ferruginous Sandstone
Arenite with Iron-oxide cement (composed of Quartz and Limonite/Hematite)
sedimentary
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of Silica, SiO2)
metamorphic
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Serpentine
Antigorite/Lizardite (Mg, Fe)3Si2O5(OH)4
metamorphic
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Gneiss
Gneiss (high-grade metamorphic rock)
metamorphic
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Granite cobble
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Schist
Schist (metamorphic rock)
metamorphic
Quartz
Quartz (SiO₂)
mineral
Quartzite (River Pebble)
Meta-quartzite (composed primarily of SiO2)
metamorphic
Quartzite Pebble
Quartzite (composed primarily of Silica, SiO2)
metamorphic
Botryoidal Chalcedony in Geode/Vug
Silicon Dioxide (SiO2)
mineral
Basalt with Iron Oxidation
Extrusive Mafic Igneous Rock (composed of Plagioclase and Pyroxene)
igneous
Gneiss (Metamorphic Pebble)
Gneissic Metamorphic Rock
metamorphic
Botryoidal Chalcedony Geode
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
mineral
Fossilized Horn Coral
Rugosa
fossil
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Gneiss
Foliated Metamorphic Rock
metamorphic