Quartzite River Stone
Quartzite (primarily SiO2)
metamorphic
Category
Metamorphic Or Sedimentary
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Orange Quartzite Pebble
Quartzite (SiO2)
metamorphic
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Jade (specifically Nephrite or Jadeite beads)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
metamorphic
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Mineral
Eclogite
Eclogite (Omphacite-Garnet Metamophic Rock)
metamorphic
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
metamorphic
Petrified Wood
Silicified Wood (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Corundum (Sapphire variant)
Aluminum Oxide (Al2O3)
mineral
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Gold in Quartz Ore
Hydrothermal Quartz with native Gold (Au)
mineral
Quartzite
Quartzite
Metamorphic
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Staurolite (Cross Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)3Si3O10(OH)2)
metamorphic
Porcelain (White Ceramic)
Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)
metamorphic
White Jade (Mutton Fat Jade / Nephrite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Banded Gneiss with Quartz Veining
Gneiss (High-grade Regional Metamorphism)
metamorphic
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Orange Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet (almandine or pyrope variety)
Silicate mineral Group: (Fe, Mg, Mn, Ca)3(Al, Fe, Cr)2(SiO4)3
mineral
Sunstone
Aventurine Feldspar (Plagioclase or Oligoclase)
mineral
Bornite
Bornite (Cu5FeS4)
mineral