Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
This Appears To Be A Man Made Metallic Object, Likely Jewelry, Not A Natural Rock, Mineral, Or Geological Specimen.
Browse this appears to be a man made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen. specimens identified by the Rock Identifier community.
Garnet in Matrix (likely Almandine in Quartz/Mica Schist)
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock
metamorphic
Black Tourmaline (Schorl)
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
mineral
Banded Metamorphic Rock (likely Quartzite or Serpentinite/Soapstone)
Metamorphic Rock (possibly a banded Quartzite or a foliated Serpentinite/Talc Schist based on appearance, general term for such a rock is 'Banded Metamorphic Rock' or 'Gneiss' if pronounced banding of different minerals)
Metamorphic
Blue Banded Agate (Dyed)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Jasper
Jasper (Silicate - SiO2)
sedimentary
Beryl (likely Aquamarine) in matrix
Be3Al2(SiO3)6 (Beryllium Aluminum Silicate)
mineral
Cherry Creek Jasper (also known as Red Creek Jasper or Cherry Creek Agate)
Jasper, microcrystalline quartz (SiO₂)
Sedimentary Rock
Carnelian Agate
Silicon Dioxide (SiO2) - Variety: Chalcedony
mineral
Slag Glass
Amorphous Silica Glass (with metal oxide inclusions)
Mineraloid / Industrial Waste
Chert (varietal known as Jasper or Flint)
Silicon Dioxide (SiO2)
Sedimentary Rock
Quartz (likely)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Chert Pebble (Jasperoid/Flint)
Silicon Dioxide (SiO2) - cryptocrystalline quartz
Sedimentary
Orange Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Lapis Lazuli
Lapis lazuli (primary mineral: Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Gold Nugget
Native Gold (Au)
mineral
Jade (likely Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Mineral
Sapphire (Corundum variety)
Sapphire (Al₂O₃)
Mineral
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and mineral impurities
sedimentary
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
mineral
Ironstone (likely Limonite or Goethite)
Ferruginous sedimentary rock (FeO(OH)·nH2O)
sedimentary
Sandstone (Weathered Pebble)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pearl
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Jasper and Aquamarine (likely)
Jasper (Cryptocrystalline Quartz (SiO2)), Aquamarine (Beryl (Be3Al2Si6O18))
Sedimentary (Jasper), Mineral (Aquamarine)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2)
sedimentary
Fluorite (Rainbow Fluorite Point)
Calcium Fluoride (CaF2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Rose/Milky variety)
Silicon Dioxide (SiO2)
mineral
River Stone (Sandstone with Oxide Banding)
Arenite with Iron/Manganese Oxide inclusions
sedimentary
Schist (Kyanite Schist)
Kyanite-Mica Schist (primarily Al2SiO5, KAl2(AlSi3O10)(OH)2, and SiO2)
metamorphic