Rock Identifier

Community gallery

All rocks & minerals

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

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

Bloodstone (Heliotrope) (Cryptocrystalline Quartz (SiO2 with inclusions of Iron Oxide/Chlorite)) — mineral

Bloodstone (Heliotrope)

Cryptocrystalline Quartz (SiO2 with inclusions of Iron Oxide/Chlorite)

Tree Agate (Chalcedony (SiO2) with Dendritic inclusions) — mineral

Tree Agate

Chalcedony (SiO2) with Dendritic inclusions

Quartzite with Glauconitic or Iron staining (Quartzite (SiO2 with accessory minerals)) — metamorphic

Quartzite with Glauconitic or Iron staining

Quartzite (SiO2 with accessory minerals)

Chert with Quartz Vein (Microcrystalline Quartz (SiO2)) — sedimentary

Chert with Quartz Vein

Microcrystalline Quartz (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Chert (Jasper variety) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Amygdaloidal Basalt with Epidote (Amygdaloidal Basalt (Mafic volcanic rock)) — igneous

Amygdaloidal Basalt with Epidote

Amygdaloidal Basalt (Mafic volcanic rock)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Quartz Druzy (Geode Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy (Geode Fragment)

Silicon Dioxide (SiO2)

Chalcedony (Yellow Jasper or Agate) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (Yellow Jasper or Agate)

Microcrystalline Quartz (SiO2)

Chert (Commonly known as Jasper or Flint) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Commonly known as Jasper or Flint)

Microcrystalline silica (SiO2)

Vesicular Basalt with Epidote/Amygdaloidal Basalt (Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)) — igneous

Vesicular Basalt with Epidote/Amygdaloidal Basalt

Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)

Chert (Serpentinized) (Silicon Dioxide (SiO2) with mineral staining) — sedimentary

Chert (Serpentinized)

Silicon Dioxide (SiO2) with mineral staining

Granite Pebble (Intrusive Magmatic Granite (Quartz, Feldspar, Mica)) — igneous

Granite Pebble

Intrusive Magmatic Granite (Quartz, Feldspar, Mica)

Jasper (Chert) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartzite (Quartzite (SiO2 silicon dioxide)) — metamorphic

Quartzite

Quartzite (SiO2 silicon dioxide)

Quartzite River Pebble (Quartzite (principally SiO2)) — metamorphic

Quartzite River Pebble

Quartzite (principally SiO2)

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4

Jasper (Red and Yellow Jasper) (SiO2 (Silicon Dioxide) with Iron Oxide inclusions) — sedimentary

Jasper (Red and Yellow Jasper)

SiO2 (Silicon Dioxide) with Iron Oxide inclusions

Green Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Green Jasper

Silicon Dioxide (SiO2) with impurities

Epidosite (Epidosite (composed mainly of Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))) — metamorphic

Epidosite

Epidosite (composed mainly of Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartzite Pebble (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartzite (primarily SiO2)

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

Milky Quartz with Nephrite Jade (Silicon Dioxide (SiO2) with Ca2(Mg,Fe)5Si8O22(OH)2) — mineral/metamorphic

Milky Quartz with Nephrite Jade

Silicon Dioxide (SiO2) with Ca2(Mg,Fe)5Si8O22(OH)2

mineral/metamorphic

Bauxite (Bauxite (Aluminum Ore)) — sedimentary

Bauxite

Bauxite (Aluminum Ore)

Dendritic Agate (Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions) — mineral

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

Yellow Quartz (Citrine/Yellow Jasper mix) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine/Yellow Jasper mix)

Silicon Dioxide (SiO2)

Greenstone Porphyry (Altered Porphyritic Andesite/Basalt) — igneous

Greenstone Porphyry

Altered Porphyritic Andesite/Basalt

Nephrite Jade (Ca2(Mg, Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Yellow Jasper (Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)) — sedimentary

Yellow Jasper

Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals usually (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals usually (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)

Chert Nodules (Chert (SiO2)) — sedimentary

Chert Nodules

Chert (SiO2)