Quartz
Silicon dioxide (SiO2)
Mineral
Category
Man Made Metamorphic Style Composite
Browse man made metamorphic style composite specimens identified by the Rock Identifier community.
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (likely Rose Quartz or Milky Quartz based on color)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
mineral
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz (likely Milky Quartz or Chalcedony)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Milky Quartz
Quartz (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
mineral
Marble
Recrystallized Calcite / Dolomite (CaCO3)
metamorphic
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Weathered schist or phyllite
Mica schist/phyllite, likely quartz–mica-rich metamorphic rock
metamorphic
Magnetite
Magnetite (Fe3O4)
Mineral
White quartz-rich pebble
Quartz (SiO₂), possibly milky quartz or quartzite
mineral
Wood Paneling
Engineered Wood / Plywood Paneling
not a rock
Prehnite
Prehnite, Ca2Al(AlSi3O10)(OH)2
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Citrine Quartz / Yellow Quartz Pebbles
Silicon Dioxide (SiO2)
mineral
Mica-rich schist
Muscovite–biotite schist, commonly quartz-bearing
metamorphic
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Mineral
Milky Quartz (Carved Star Beads)
Silicon Dioxide (SiO2)
mineral
Tumbled pale quartz (likely milky quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Citrine or Yellow Jasper)
Silicon Dioxide (SiO2) with iron impurities
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Marble
Recrystallized Carbonate Rock (CaCO3)
metamorphic
Yellow Quartzite Pebble
Quartzite (SiO2)
metamorphic
Diamond (Cut Gemstones in Jewelry)
Carbon (C)
gemstone
Corundum (Ruby/Sapphire crystal)
Al2O3 (Aluminum Oxide)
mineral
Pink Tourmaline (Rubellite)
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Emerald
Beryl (Be₃Al₂(SiO₃)‑₆) with Chromium/Vanadium impurities
mineral