Chert (Quartz Variety)
Chert (mostly SiO2 / Silicon Dioxide)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Chert (Quartz Variety)
Chert (mostly SiO2 / Silicon Dioxide)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Unakite
Epidotized Granite
Milky Quartz with Chlorite inclusion
Silicon Dioxide (SiO2) with Chlorite group inclusions
Greenstone
Greenschist (Greened Metabasalt)
Epidotite (Unakite variety)
Epidotized Granite (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
Tourmalinated Quartz
SiO2 with NaFe3+3Al6(BO3)3Si6O18(OH)4 inclusions
Quartz Pebble (Water-worn Quartzite)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (SiO2)
Marble
Recrystallized Calcite (CaCO3) Rock
Purple Dyed Agate Geode (Banded Chalcedony)
Silicon Dioxide (SiO2) - variety: Agate
Quartzite
Quartzite (primarily SiO2)
Garnet Schist
Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Smoky Quartz (with possible Garnet inclusions)
Silicon Dioxide (SiO2)
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Serpentine with Quartz Vein
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4 with SiO2 veins
Granite Gneiss
Granitic Gneiss
Fuchsite Quartzite
Fuchsite-bearing Quartzite
Quartzite Pebble
Quartzite (principally SiO2)
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
Tiger's Eye
Tiger's Eye (a variety of Chalcedony, which is cryptocrystalline quartz). Chemical Formula: SiO2 with inclusions of crocidolite fibers.
Unakite
Unakite (Epidotized Granite)
Jasper and Quartz conglomerate (River Rock)
Silicon Dioxide (SiO2) - Chalcedony and Quartz variety
Quartz Pebble (Grit)
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Serpentinite (Commonly known as Serpentine)
Antigorite, Lizardite, or Chrysotile [(Mg,Fe)3Si2O5(OH)4]
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
Gneiss
Gneiss (high-grade metamorphic rock)
Quartzite River Rock
Metamorphic Quartzite (primarily SiO2)
Granite Gneiss
Gneiss (High-grade metamorphic rock)
Granite Gneiss
Gneiss (high-grade metamorphic rock)
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
Zebra Jasper (usually a trade name for Serpentine or Basalt blend)
Antigorite/Chrysotile (Serpentine family) - Mg3Si2O5(OH)4
Jasper (Iron-stained Quartz)
Silicon dioxide (SiO2) with iron oxide inclusions