Pink Quartzite
Quartzite (SiO2)
metamorphic
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Fossiliferous Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Porphyritic Basalt (Chinese Writing Stone)
Porphyritic Basalt with Feldspar Phenocrysts
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Tumbled brown quartzite or jasper
Quartzite (mostly SiO₂), possibly iron-rich jasper (microcrystalline quartz)
metamorphic
Dalmatian Stone
Dalmatian Stone (a fine-grained igneous rock, often misidentified as Dalmatian Jasper)
igneous
Chert (Common Opal/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Unakite
Epidotized Granite
metamorphic
Opalite
Synthetic Opalised Glass
mineral
Dalmatian jasper
Dalmatian stone, typically a leucocratic alkali-feldspar-rich porphyritic igneous rock with black arfvedsonite or aegirine inclusions
igneous
Gastropod Fossil (Steinkern)
Class Gastropoda (internal mold)
fossil
Diorite
Intrusive Igneous Diorite
igneous
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Conglomerate
Clastic Sedimentary Conglomerate (SiO2 based clasts in matrix)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Basalt River Stone (Tumbled)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Hag Stone
Sandstone or Limestone with Solution Holes (Bioturbation/Erosion)
sedimentary
Petoskey Stone
Hexagonaria percarinata
Sedimentary
Granite Cobble
Granite (Phaneritic Igneous Rock)
igneous
Gabbro (Water-Worn Pebble)
Gabbro (Plagioclase Feldspar and Pyroxene)
igneous
Unakite
Epidotized Granite (Ca2(Al, Fe)3(SiO4)3(OH))
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Granite
Phaneritic Plutonic Felsic Rock
igneous
Worry Stone
Weathered Quartzite or Sandstone
sedimentary
Petoskey Stone
Hexagonaria percarinata
fossil
Granodiorite
Granodiorite
igneous
Basalt Puddle Stone
Basalt (Mafic volcanic rock)
igneous
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Granodiorite
Granodiorite (containing Quartz, Plagioclase Feldspar, Biotite, and Hornblende)
igneous
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Greenstone
Protolith: Basaltic rock
metamorphic
Quartzite river stone
Quartzite (SiO2)
metamorphic
Quartzite (Iron-stained)
Quartzite (SiO2 with Fe2O3 inclusions)
metamorphic
Greenstone
Protolith of basalt/gabbro (chlorite-epidote metamorphic facies)
metamorphic
Unakite (Epidotized Granite)
Unakite (Rock composed of Epidote Ca2(Al,Fe)3(SiO4)3(OH), Orthoclase KAlSi3O8, and Quartz SiO2)
metamorphic