Jasper
Microcrystalline Quartz (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Jasper
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Weathered iron-rich metamorphic rock, likely banded iron formation or ferruginous quartzite
Quartz–iron oxide rock; chiefly SiO₂ with hematite (Fe₂O₃), magnetite (Fe₃O₄), and minor limonite/goethite
Greenschist (or Serpentinite with Manganese Dendrites)
Greenschist facies metamorphic rock
Quartz (likely macrocrystalline variety)
Quartz (SiO₂)
Serpentinite
Serpentinite (Hydrous magnesium iron phyllosilicate)
Milky Quartz in Matrix
Silicon Dioxide (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Milky quartz
Quartz (SiO₂), massive variety
Clear quartz fragment
Quartz (silicon dioxide, SiO₂)
Tumbled quartz-rich pebble (likely milky quartz or quartzite)
Quartz, SiO₂; possibly quartzite, a metamorphic quartz aggregate
Green Mica Schist
Mica Schist (Fuchsite or Chlorite variety)
Aventurine
Aventurine Quartz (SiO2)
Quartz (Milky/Clear Variety)
Silicon Dioxide (SiO2)
Dearest Ring (Gemstones)
Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)
Tumbled green aventurine (probable)
Quartz-rich aventurine; SiO₂ with dispersed fuchsite mica or other green inclusions
Quartz (Yellow/Orange variety)
Silicon Dioxide (SiO2)
Raw Quartz
Silicon Dioxide (SiO2)
Coarse-grained Granite
Granitoid (Felsic Plutonic Rock)
Milky Quartz with Mica
Silicon Dioxide (SiO2) with Muscovite or Biotite inclusions
Quartz with Schist Inclusion
Crystalline Silicon Dioxide (SiO2) with Muscovite/Biotite Schist
Quartz
Silicon Dioxide (SiO2)
Weathered quartz-rich rock, likely quartzite
Quartzite; predominantly microcrystalline quartz (SiO₂), possibly with mica or iron-oxide impurities
Quartzite
Quartzite (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)
Garnet-Bearing Schist
Almandine Garnet Micaceous Schist
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky quartz fragment
Quartz (silicon dioxide, SiO₂)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)