Quartz (Milky Quartz/Citrine Type)
Silicon Dioxide (SiO2)
Category
Browse metamorphic rock (for nephrite and some jadeite); mineral (for jadeite) specimens identified by the Rock Identifier community.
Quartz (Milky Quartz/Citrine Type)
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Granite
Granite (a felsic intrusive igneous rock)
Boxwork Quartz / Septarian Jasper
Boxwork (SiO2 with iron oxide inclusions)
Unakite or Epidosite
Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)
Quartzite
Quartzite (primarily SiO2)
Quartz
Silicon dioxide (SiO2)
Marble
Recrystallized Calcite (CaCO3)
Quartz Pebble (Water-worn Quartzite)
Silicon Dioxide (SiO2)
Lapis Lazuli
Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Lapis Lazuli
Lazurite-dominant Metamorphic Rock (complex aluminosilicate)
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with oxidation
Banded Chalcedony (Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Prehnite
Prehnite Ca2Al2Si3O10(OH)2
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Quartz (specifically Milky/Gray Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Almandine Garnet in Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Sandstone (with potentially metamorphic or basaltic bands)
Arenite / Lithic Wacke
Pink Anthracite Coal (dyed)
Anthracite Coal (Artificially Colored)
Serpentinite
Serpentinite (composed primarily of minerals in the Serpentine group)
Quartz Pebble
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Marble
Recrystallized Calcite (CaCO3) Rock
Quartzite with Iron Inclusions
Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)
Baltic Amber (Butterscotch or Egg Yolk Variety)
Succinite (chemical formula: C10H16O)
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Aventurine
Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)
Schist
Mica Schist
Lapis Lazuli (Raw Ore)
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)
Smoky Quartz
Quartz (SiO₂)
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Shale
Shale (clastic sedimentary rock)