Conglomerate
Clastic Sedimentary Conglomerate (SiO2 primarily)
sedimentary
Category
Mineral
Browse mineral specimens identified by the Rock Identifier community.
Learn about Mineral in the encyclopedia
View all →
Bornite
Cu5FeS4 (Copper Iron Sulfide)
mineral
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Limonite (Iron Stone/Ocher)
Limonite (FeO(OH)·nH2O)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
metamorphic
Himalayan Pink Salt (Halite)
Halite (Sodium Chloride, NaCl)
sedimentary
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Granite or Granitic Gneiss River Rock
Granite / Gneiss
Igneous or Metamorphic
Mosasaur Tooth Fossil
Mosasauridae (likely Prognathodon or Mosasaurus)
fossil
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Limonite (Iron Ore/Hydrated Iron Oxide)
Limonite (mixture of FeO(OH)·nH₂O minerals, mainly Goethite, FeO(OH) and Lepidocrocite, FeO(OH))
Mineral
Undetermined Due to Blur (Possible Flesh-Tone Mineral)
Unknown (Insufficient Visual Clarity)
Mineral
Basalt with vesicles (Amygdaloidal Basalt)
Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)
igneous
Greywacke (likely)
Greywacke (a type of sandstone)
Sedimentary
Amazonite
Microcline (variety Amazonite), K(AlSi3O8)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Schist
Mica Schist
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Apatite
Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite River Rock with Dendrites
Metamorphosed Quartz-rich Sandstone with Manganese Oxide (MnO2) inclusions
metamorphic
Honeycomb Calcite
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Chrysocolla Cuprite
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla) and Cu2O (Cuprite)
mineral composite
Granite
Phaneritic Felsic Igneous Rock
igneous
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Quartzite
Quartzite (Primary mineral: Quartz, SiO2)
metamorphic
Picture Jasper
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Fancy Jasper
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Ocean Jasper (Orbicular Jasper)
Silica (SiO2) with varied mineral inclusions
mineralogical specimen