Pyrite (Iron Pyrite)
Iron Sulfide (FeS2)
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Pyrite (Iron Pyrite)
Iron Sulfide (FeS2)
Smoky Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Silicon dioxide (SiO2) with inclusions of Fuchsite
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Limonite (Ironstone)
Limonite (FeOO·nH2O)
Yellow Jasper
Cryptocrystalline Quartz (SiO2) with iron inclusions
Mica Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
Fancy Jasper (Ocean Jasper or River Jasper variant)
Silicon Dioxide with inclusions (SiO2)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Quartzite
Quartzite (primarily SiO2)
Slag (Industrial Glass)
Anthropogenic Vitreous Slag (Post-industrial byproduct)
Schist
Crystalline Metamorphic Rock (Schistose)
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Fossilized Brachiopod/Bivalve in Limestone
Brachiopoda or Bivalvia fossil in Calcite/Limestone (CaCO3)
Sodalite
Sodalite: Na8(Al6Si6O24)Cl2
Chert (Common Opal or Chalcedony)
Microcrystalline Quartz (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Schist
Mica Schist
Mica Schist
Mica Schist (primarily Muscovite and Biotite KAl2(AlSi3O10)(OH)2)
Jasper
Jasper / Silicon Dioxide (SiO₂)
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Green Chert
Microcrystalline Quartz (SiO2)
Agate
Silicon Dioxide (SiO2) - variety: Chalcedony
Agate
Cryptocrystalline Quartz (SiO2)
Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Granite
Granite (Felsic Plutonic Rock)
River Rock (Granite Cobble)
Granite (Phaneritic Quartz-Feldspar-Mica intrusive rock)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Quartzite
Quartzite (SiO2)
Quartz Pebbles and Agates
Silicon Dioxide (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Desert Rose
Baryte or Gypsum variation (CaSO4·2H2O or BaSO4)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
Specular Hematite with Pyrite
Iron Oxide (Fe2O3) with Iron Sulfide (FeS2)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4
Phyllite
Phyllite
Chert / Flint Nodules in Sandstone
Microcrystalline Quartz (SiO2) within Clastic Sedimentary Rock