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Recent Rock Identifications
Explore rocks, minerals, and gemstones recently identified by our AI-powered system
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chondrite Meteorite
L or H Ordinary Chondrite
igneous
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Moss Agate
Silicon Dioxide with inclusions (SiO2)
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Banded Iron Formation
Banded Iron Formation (BIF)
sedimentary
Banded Iron Formation (BIF) / Jasper
Banded Iron Formation (SiO2 with Fe2O3 and Fe3O4)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Basalt with Plagioclase Feldspar
Basalt (mafic extrusive igneous rock) with plagioclase feldspar phenocrysts
Igneous
Porphyritic Basalt or Andesite
Porphyritic Basalt / Andesite
Igneous
Unknown Rock Specimen
N/A
igneous
Basalt with Plagioclase Microphenocrysts
Amygdaloidal or Porphyritic Basalt
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Agate Geode
Silicon Dioxide (SiO2) - variety Chalcedony/Quartz
sedimentary
Coarse-grained Granite
Phaneritic Granite (contains Quartz, Feldspar, and Mica)
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Jasper with Epidote (Unakite-related)
Epidotized Quartzite (composed of Quartz, Epidote, and Feldspar)
metamorphic
Pyrite in Shale
Iron Disulfide (FeS2) in Argillaceous Shale
sedimentary
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Green Jasper
Silicon Dioxide (SiO2)
sedimentary
Halite
Halite (Sodium Chloride, NaCl)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Banded Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
igneous
Conglomerate with Quartz Inclusions
Conglomerate (clastic sedimentary rock) with internal Quartz (SiO2)
sedimentary
Andesite
Andesite
igneous
Opal
Hydrated Silica (SiO2·nH2O)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Schist
Mica Schist
metamorphic
Shale
Shale (Consolidated fine-grained clay/silt)
sedimentary
Kimberlite with Diamond
Kimberlite (Porphyritic Peridotite)
igneous
Graywacke
Graywacke/Lithic Sandstone
sedimentary
Amber with Inclusion
Succiniferous fossil resin (C10H16O)
mineraloid
Schorl (Black Tourmaline)
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
sedimentary
Quartzite with Garnet
Garnetiferous Quartzite (SiO2 + X3Y2(SiO4)3)
metamorphic
Ferruginous Sandstone
Sandstone (arenite) with Limonite/Goethite cement
sedimentary
Pearl
Calcium Carbonate (CaCO3) - mainly Aragonite and Calcite
mineral
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