Jadeite (Nephrite)
Ca2(Mg,Fe)5Si8O22(OH)2
metamorphic
Community gallery
All rocks & minerals
Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.
Basalt with Amygdaloidal Infilling
Porphyritic or Amygdaloidal Basalt
igneous
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Pyrite Concretion
Iron Sulfide (FeS2) in Sedimentary Matrix
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Lapis Lazuli
Lapis Lazuli (Complex aggregate containing Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
metamorphic
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Dyed Quartz / Rose Quartz Imitation
Silicon Dioxide (SiO2) with artificial pigment
mineral
Pink Chalcedony
Silicon Dioxide (SiO2)
mineral
Quartz (Chert/Chalcedony flake)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chert / Chalcedony Nodules
Silicon Dioxide (SiO2)
sedimentary
Pink Tumbled Agate
Silicon Dioxide (SiO2) with dye
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Quartz / Quartzite
Silicon Dioxide (SiO2)
Mineral / Metamorphic
Biotite Granite
Phaneritic Felsic Igneous Rock
igneous
Granite fragment
Granite (Felsic Plutonic Rock)
igneous
Sandstone
Arenite (lithic or quartz sandstone)
sedimentary
Granite
Phaneritic plutonic igneous rock (mostly SiO2 and Al2O3)
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Sandstone (Ferruginous)
Arenite (Fe2O3 enriched)
sedimentary
Garnet
Almandine-Pyrope group, X3Y2(SiO4)3
mineral
Pyrite-bearing Schist
Pyritic Quartz-Mica Schist with FeS2 inclusion
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Gneiss with Quartz/Feldspar Vein
Quartz-Feldspathic Gneiss
metamorphic
Chert (River Pebble)
Microcrystalline silica (SiO2)
sedimentary
Basalt River Stone
Aphanitic Mafic Igneous Rock
igneous
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (Flint Pebble)
Silicon Dioxide (SiO2)
sedimentary
Chert with Limestone Cortex
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)
sedimentary