Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse mixed (sedimentary, igneous, and metamorphic) specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Moonstone
Orthoclase Feldspar (KAlSi3O8)
Green Quartz (Prasiolite variant or Aventurine)
Silicon Dioxide (SiO2)
Gneiss (High-grade Metamorphic Rock)
Gneiss
Gneiss
Gneiss (Foliated Metamorphic Rock)
Gneiss (High-grade Metamorphic Rock)
Gneiss (Metamorphic silicate rock)
Magnetite
Magnetite (Fe3O4)
Sunstone / Peach Moonstone (Feldspar variety)
Potassium Aluminum Silicate (KAlSi3O8)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Ferruginous Quartz (Iron-stained Quartz)
Quartz with Iron Oxide inclusions (SiO2 with Fe2O3)
Gneiss
Gneiss
Gneiss
Gneiss
Banded Gneiss with Quartz Vein
Gneiss containing SiO2 (Quartz) intrusion
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
High-grade regional metamorphic Gneiss
Gneiss
Gneiss
Gneiss (Metamorphosed Pebble)
Gneiss with Quartz/Feldspar banding
Granite Gneiss
Gneiss (Polymetamorphic Quartz-Feldspar-Mica rock)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss
Gneiss
Gneiss (High-grade Metamorphic Rock)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Banded Gneiss River Pebble
Gneiss
Gneiss
Gneiss
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss
Gneiss (Cobble)
Gneiss
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss
Gneiss
Gneiss (High-grade Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss (Banded Gneiss)
Gneiss
Quartz–mica metamorphic rock, likely schist
Quartz–muscovite/biotite schist; predominantly SiO₂ quartz with phyllosilicate micas
Milky quartz
Quartz, silicon dioxide (SiO₂)
Moonstone
Adularia (Potassium Aluminum Silicate, KAlSi3O8)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gold Nugget
Native Gold (Au)
Citrine Quartz
Silicon Dioxide (SiO2)