Gneiss (Schistose)
Gneiss
Category
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
Gneiss (Schistose)
Gneiss
Gneiss
Gneiss
Gneiss (Metamorphic Cobble)
Gneiss
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss (High-grade Metamorphic Rock)
Gneiss (Metamorphic silicate rock)
Carnelian
Cryptocrystalline Quartz (SiO2 with iron oxide impurities)
Gneiss
Gneiss
Carnelian Agate/Jasper blend
Silicon Dioxide (SiO2) - variety of Chalcedony
Gneiss (specifically Pink Gneiss)
Gneiss (high-grade regional metamorphic rock)
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)
Quartz (Milky or Rough Variety)
Silicon Dioxide (SiO2)
Banded Agate (specifically Moss Agate or Plume Agate variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Banded Gneiss
Gneiss (Metamorphic Rock)
Porphyry (Flower Stone)
Porphyry (Andesite or Basalt matrix)
Sodalite (blue beads) and Clear Quartz (clear beads)
Sodalite: Na4Al3Si3O12Cl; Quartz: SiO2
Tourmaline (likely Schorl)
Tourmaline Group Mineral (e.g., Schorl for black varieties); (Na,Ca)(Li,Mg,Fe,Mn,Al)3Al6(BO3)3Si6O18(OH)4
Banded Gneiss and Siltstone River Stones
Gneiss (High-grade Metamorphic Rock)
Gneiss (Granitic Gneiss)
Gneiss
Gneiss
Metamorphic Gneiss
Fluorite
Calcium Fluoride (CaF2)
Gneiss
Metamorphic Rock (Gneissic texture)
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Pink Gneiss / Pink Granite Gneiss
Felsic Gneiss (dominated by Orthoclase Feldspar and Quartz)
Granitic Gneiss
Gneiss (Complex silicate composition)
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
Green Fluorite
Calcium Fluoride (CaF2)
Gneiss
High-grade foliated metamorphic rock
White Quartz (Milky Quartz)
Quartz (Silicon Dioxide, SiO2)
Gneiss
Gneiss
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
High-grade Metamorphic Gneiss
Banded Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)