Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Category
Browse man made metamorphic style composite specimens identified by the Rock Identifier community.
Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Shale
Shale (comprised mostly of clay minerals and quartz)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Granite
Granite (Felsic intrusive igneous rock)
Gneiss (specifically a Granitic Gneiss specimen)
Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)
Gneiss
Gneiss (High-grade metamorphic rock composed primarily of Quartz, Feldspar, and various Micas)
Garnet in Matrix (Eclogite)
Eclogite, featuring Almandine or Pyrope Garnet [X3Y2(SiO4)3]
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Milky Quartz
Silicon Dioxide (SiO2)
Rhodochrosite
Manganese carbonate (MnCO3)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains, primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Granite
Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Serpentine
Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
Serpentinite
Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4
Serpentinite
Serpentinite (group of hydrous magnesium iron phyllosilicates)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Serpentine
Serpentine-group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Flint
Chert (a form of cryptocrystalline quartz, chemical formula SiO₂)
Bornite
Bornite (Cu5FeS4)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (90%+ SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3