Rock Identifier

Community gallery

All rocks & minerals

Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.

Red Jasper (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2)

sedimentary
Red Jasper with Fossils (Silicified Fossiliferous Jasper (Chert variant, SiO2)) — sedimentary

Red Jasper with Fossils

Silicified Fossiliferous Jasper (Chert variant, SiO2)

sedimentary
Carnelian (Silicon dioxide / Chalcedony (SiO2)) — mineral

Carnelian

Silicon dioxide / Chalcedony (SiO2)

mineral
Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

mineral
Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

mineral
Red Jasper (Red Jasper (SiO2)) — sedimentary

Red Jasper

Red Jasper (SiO2)

sedimentary
Phyllite (Phyllite (Intermediate grade metamorphic rock)) — metamorphic

Phyllite

Phyllite (Intermediate grade metamorphic rock)

metamorphic
Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

sedimentary
Pumice (Pumice (a vesicular volcanic glass)) — igneous

Pumice

Pumice (a vesicular volcanic glass)

igneous
Desert Rose (Gypsum rosette (Hydrous calcium sulfate, CaSO4·2H2O)) — mineral

Desert Rose

Gypsum rosette (Hydrous calcium sulfate, CaSO4·2H2O)

mineral
Milky Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

mineral
Yellow Jasper (Opaque Cryptocrystalline Quartz (SiO2)) — sedimentary

Yellow Jasper

Opaque Cryptocrystalline Quartz (SiO2)

sedimentary
Rhodonite (Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3

mineral
Banded Iron Formation (BIF) (Banded Iron Formation (principally Hematite/Magnetite and Chert)) — sedimentary

Banded Iron Formation (BIF)

Banded Iron Formation (principally Hematite/Magnetite and Chert)

sedimentary
Conchoidal Basalt Pebble (Basalt with conchoidal fracturing) — igneous

Conchoidal Basalt Pebble

Basalt with conchoidal fracturing

igneous
Milky Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

mineral
Quartz-veined Siltstone (Siltstone with Quartz (SiO2) veins) — sedimentary

Quartz-veined Siltstone

Siltstone with Quartz (SiO2) veins

sedimentary
Quartzite (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

metamorphic
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Banded Iron Formation (BIF (Banded Iron Formation)) — sedimentary

Banded Iron Formation

BIF (Banded Iron Formation)

sedimentary
Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Basalt (with Porphyritic or Amygdaloidal features) (Mafic Volcanic Rock (Basalt)) — igneous

Basalt (with Porphyritic or Amygdaloidal features)

Mafic Volcanic Rock (Basalt)

igneous
Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Quartz Breccia (Brecciated Quartz Clasts in Siliceous/Sandy Matrix) — sedimentary

Quartz Breccia

Brecciated Quartz Clasts in Siliceous/Sandy Matrix

sedimentary
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Nephrite Jade (Tremolite-Actinolite solid solution Ca2(Mg,Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Tremolite-Actinolite solid solution Ca2(Mg,Fe)5Si8O22(OH)2

metamorphic
Desert Rose (Baryte or Gypsum variation (CaSO4·2H2O or BaSO4)) — mineral

Desert Rose

Baryte or Gypsum variation (CaSO4·2H2O or BaSO4)

mineral
Jasper (Nephrite-like appearance) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Nephrite-like appearance)

Silicon Dioxide (SiO2) with impurities

sedimentary
Goldstone (Brown) (Aventurine glass) — mineraloid (man-made)

Goldstone (Brown)

Aventurine glass

mineraloid (man-made)
Rough Diamond (Carbon (C)) — mineral

Rough Diamond

Carbon (C)

mineral
Sapphire (Rough Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Sapphire (Rough Corundum)

Corundum (Aluminum Oxide, Al2O3)

mineral
Biotite Schist (Biotite Mica Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)) — metamorphic

Biotite Schist

Biotite Mica Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)

metamorphic
Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Milky Quartz with Hematite/Limonite staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Hematite/Limonite staining

Silicon Dioxide (SiO2)

mineral
Quartzite (Quartzite (SiO2 with impurities)) — metamorphic

Quartzite

Quartzite (SiO2 with impurities)

metamorphic
Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

metamorphic
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

mineral
Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

metamorphic
Moonstone (Orthoclase Feldspar) (Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)) — mineral

Moonstone (Orthoclase Feldspar)

Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)

mineral
Quartzite (Silica (SiO2)) — metamorphic

Quartzite

Silica (SiO2)

metamorphic
Chert (Yellow Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

sedimentary