Granite
Intrusive Igneous Rock
igneous
Category
Mineral (Processed Metal)
Browse mineral (processed metal) specimens identified by the Rock Identifier community.
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Black Chert (Flint / Basanite)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
sedimentary
Amygdaloidal Basalt
Basalt with secondary mineral infilling
igneous
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
mineral
Silicon
Crystalline Silicon (Si)
mineral
Beryl (Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gossan (Iron Cap)
Limonitic Gossan (Fe2O3·nH2O mixed)
sedimentary
Biotite-rich mica schist
Mica schist, dominated by biotite mica (K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂), with probable quartz and feldspar
metamorphic
Granite
Intrusive Igneous Rock
igneous
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxides
mineral
Moss Agate
Silicon dioxide (SiO2) with inclusions
Mineral
Granite
Felsic intrusive igneous rock
igneous
Granite and Porphyry Pebbles
Intrusive Igneous Rock
igneous
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Granite
Intrusive Igneous Rock
igneous
Pearl (Imitation or Cultured)
Calcium Carbonate (Aragonite/Calcite) - CaCO3
Mineraloid (Organic)
Copper
Native Copper (Cu)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Native Copper
Native Copper (Cu)
mineral
Native Copper
Native Copper (Cu)
mineral
Granite
Felsic intrusive igneous rock
igneous
Vanadinite
Pb5(VO4)3Cl
mineral
Granite
Felsic intrusive igneous rock
igneous
Iron Meteorite / Chondrite (Possible)
Extraterrestrial stony-iron or chondritic meteorite
meteorite
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Intrusive Igneous Rock
igneous
Sandstone
Arenite (SiO2 based)
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Fluorite Bracelet
Calcium Fluoride (CaF2)
mineral
Beryl (likely Emerald or Aquamarine in matrix)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
One Pound Coin (UK)
Nickel-Brass Alloy (Cu-Zn-Ni)
mineral
Sunstone
Andesine-Labradorite Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Bull Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Iron Meteorite
Iron-Nickel Meteorite (primarily composed of kamacite and taenite alloys)
Mineral
Granite
Intrusive Igneous Rock
igneous
Porphyritic Basalt or Porphyritic Andesite
Porphyritic Extrusive Igneous Rock
igneous
Jasper
Silicon dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Veinated Sandstone or Siltstone
Silicon Dioxide (SiO2) within a clastic sedimentary matrix
sedimentary