Serpentine
(Mg,Fe)3Si2O5(OH)4
metamorphic
Category
Man Made Material (Metal)
Browse man made material (metal) specimens identified by the Rock Identifier community.
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Quartzite River Cobble
Quartzite (primarily SiO2)
metamorphic
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Bauxite
Bauxite (Al2O3·2H2O)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Chert (Arrowhead Fragment)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Black Chert or Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert / Flint
Silicon Dioxide (SiO2)
sedimentary
Granite
Granite (a plutonic rock)
Igneous
Diamond (or Simulant)
Carbon (C) or Cubic Zirconia (ZrO2)
gemstone
Chert (Nodular or Massive Variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Copper Ore (Malachite/Chrysocolla bearing)
Cupriferous rock containing secondary copper minerals like Cu2CO3(OH)2
mineral
Bauxite
Aluminium ore (Hydrated aluminium oxides AlOx(OH)3-2x)
sedimentary
Quartz Sand
Silicon Dioxide (SiO2)
sedimentary
Bauxite
Al2O3·2H2O (Aluminum Hydroxide)
sedimentary
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Bauxite
Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))
sedimentary
Copper Ore (likely Malachite or Chrysocolla staining)
Copper Secondary Mineral (e.g., Cu2CO3(OH)2)
mineral
Beryl in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Diamond
Carbon (C)
gemstone
Sandstone (specifically Arkose or Quartz Arenite)
Arenite (primarily SiO2 with possible Feldspar)
sedimentary
Blue Quartz / Glass Gemstone Pendant
SiO2 (Silicon Dioxide) or Synthetic Glass
gemstone
Granite
Felsic intrusive igneous rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Native Gold Flake
Gold (Au)
mineral
Granite
Plutonic Igneous Rock
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Intrusive Igneous Rock (Felsic)
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Aura Quartz Geode
Titanium/Gold bonded Quartz (SiO2 with metallic coating)
mineral