Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Category
Browse igneous and sedimentary specimens identified by the Rock Identifier community.
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Banded Agate
Chalcedony (SiO2) with impurities
Quartz Geode
Silicon Dioxide (SiO2)
Quartz Geode
Quartz (Silicon Dioxide, SiO2)
Banded Agate (specifically Sardonyx or Carnelian Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
Granitoid Gneiss with Feldspar Vein
Gneiss (High-grade Metamorphic Rock) with Potassium Feldspar (KAlSi3O8)
Banded Gneiss with Quartz Vein
Foliated Metamorphic Rock (Gneiss)
Gneiss
Foliated Metamorphic Rock
Gneiss (Metamorphic Rock)
Gneiss (high-grade regional metamorphic rock)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Quartz Geode
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (quartz-feldspar-biotite metamorphic rock)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Turquoise
Hydrated phosphate of copper and aluminum - CuAl6(PO4)4(OH)8·4H2O
Carnelian
Silicon dioxide (SiO2) with iron oxide impurities
Green Fluorite (Beaded)
Fluorite (Calcium Fluoride, CaF2)
Banded Gneiss
Gneiss (Metamorphic Rock)
Rough Agate/Chert Nodules
Cryptocrystalline Quartz (SiO2)
Banded Gneiss
Gneiss (Metamorphic rock of variable mineralogy, often quartz-feldspar base)
Carnelian
Carnelian (a variety of Chalcedony); SiO2 (Silicon Dioxide)
Gneiss (with Quartz and Mica)
Gneiss
Gneiss
Metamorphic rock of high-grade regional metamorphism
Banded Gneiss with Quartz Vein
Gneiss containing SiO2 (Quartz) intrusion
Quartz (Crystalline Cluster)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss
Gneiss
Foliated Metamorphic Gneiss
Gneiss (Metamorphosed Pebble)
Gneiss with Quartz/Feldspar banding
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss
Gneiss (River Cobble)
Gneiss (Foliated Metamorphic Rock)
Gneiss
Gneiss (Metamorphic high-grade)
Bloodstone Jasper (Heliotrope)
SiO2 (Silicon Dioxide) - Cryptocrystalline Quartz
Gneiss
High-grade Metamorphic Gneiss
Gneiss
Metamorphic Gneiss
Carnelian
Silicon Dioxide (SiO2) - variety of Chalcedony
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss (Banded Gneiss)
Gneiss
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)