Quartz (Milky and Bull Quartz)
Silicon Dioxide (SiO2)
Category
Browse mineral (found in igneous and metamorphic rocks) specimens identified by the Rock Identifier community.
Quartz (Milky and Bull Quartz)
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Dumortierite Quartz (Blue Quartz)
Al7(BO3)(SiO4)3O3 / Quarz with Dumortierite inclusions
Arsenopyrite in Quartz/Host Rock
Arsenopyrite (FeAsS)
Green Aventurine
Quartz (Aventurine variety) - SiO₂ with Fuchsite inclusions
Amethyst
SiO2 (Silicon Dioxide)
Gneiss
High-grade regional metamorphic rock (Foliated)
Ruby (set in a gold pendant)
Ruby (Variety of Corundum, Al2O3)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Lapis Lazuli
Lapis Lazuli (Complex aggregate of Lazurite, Calcite, and Pyrite)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Fluorite
Fluorite (CaF₂)
Lapis Lazuli
Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz with Mica (likely Muscovite)
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide Fluoride
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Arkosic Sandstone (or Conglomeritic Sandstone fragment)
Arkose (rich in feldspar)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz with Calcite/Quartz Veining
Silicon Dioxide (SiO2)
Pink Rhodonite
Manganese Silicate (MnSiO3)
Green Aventurine
Silicon dioxide with Fuscite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Garnet (Almandine variety)
Almandine, Fe3Al2(SiO4)3
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
Prehnite
Prehnite, Ca2Al2Si3O10(OH)2
Dumortierite Quartz
Dumortierite-bearing Quartz (Al7BO3(SiO4)3O3)
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite (on host rock/ore)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Yellow Citrine Quartz
Silicon Dioxide (SiO₂)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Citrine Quartz Sphere
Silicon Dioxide (SiO2)
Ruby in Kyanite
Corundum in Disthene (Al2SiO5 + Al2O3)