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Recent Rock Identifications
Explore rocks, minerals, and gemstones recently identified by our AI-powered system
Puddingstone (Gowganda Tillite/Lorrain Quartzite)
Jasper Conglomerate
sedimentary
Puddingstone (specifically Gowganda Tillite or St. Joseph Island Puddingstone)
Jasper Conglomerate
sedimentary
Gowganda Tillite (Puddingstone)
Glacial Diamictite (Gowganda Formation)
sedimentary
Glacial Cobble (likely Granitic or Gneissic)
Granite/Gneiss Glacial Erratic
igneous
Pink Quartz (Inclusion-filled)
Silicon Dioxide (SiO2)
mineral
Lapis Lazuli (Tumbled)
Lazurite-dominated contact metamorphic rock
metamorphic
Belemnoit Fossil (Sea Squid Fossil)
Belemnitida (Order within Cephalopoda)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Chert with Iron Staining
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Agate
Agate (Varietal form of Chalcedony/Quartz, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chert / Flint
Silicon Dioxide (SiO2)
sedimentary
Brown Antique Granite
Anorthosite (Technically a plutonic rock composed mainly of plagioclase feldspar)
igneous
Quartz (Common Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Basalt
Basalt (Mafic volcanic rock)
igneous
Basalt
Extrusive Mafic Igneous Rock
igneous
Feldspar (Orthoclase/Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Chert (Jasper)
Silicon dioxide (SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Yellow Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Shale with Pyrite
Clastic sedimentary rock containing Iron Disulfide (FeS2)
sedimentary
Amethyst (Tumbled)
Quartz (Silicon Dioxide, SiO2) with iron impurities
mineral
Labradorite
Labradorite (Plagioclase Feldspar series; (Ca,Na)(Al,Si)4O8)
mineral
White Quartzite
Quartzite (primarily SiO2)
metamorphic
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Granite
Intrusive igneous rock (high SiO2)
igneous
Mookaite Jasper
Radiolarite (Silicon Dioxide, SiO2)
sedimentary
Jasper (Iron-stained Quartz)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron inclusions
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Apache Tear (Obsidian)
Volcanic glass / Amorphous SiO2
igneous
Sandstone
Arenite (SiO2 predominantly)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
mineral
Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
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