Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
Category
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
Basalt
Mafic Igneous Rock (composed of plagioclase feldspar and pyroxene)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Vesicular Basalt
Basalt (extrusive volcanic rock)
Mica Schist
Mica Schist (Intermediate-grade Metamorphic Rock)
Schist (Garnet-Mica Schist)
Garnet-Mica Schist
Sandstone (Ferruginous)
Arenite with Iron-Oxide cement
Sandstone
Arenite (composed primarily of SiO2)
Greenstone with Magnetite Veins
Metabasalt (Greenstone)
Sandstone (Gneissic or Banded)
Clastic Sedimentary Rock (composed predominantly of SiO2)
Milky Quartz (with trace inclusions)
Silicon Dioxide (SiO2)
Diorite Gneiss
Foliated Diorite Gneiss
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Green Quartzite (Tumbled)
Metamorphosed Quartz-rich Sandstone
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
Sandstone (Pebble)
Arenite / Clastic Sedimentary Rock
Banded Gneiss with Quartz Vein
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])
Sandstone
Arenite (SiO2 with various cementation agents)
Mica Schist
Mica Schist (Complex Silicate Rock)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
Schist
Mica Schist
Sandstone (Ferruginous)
Arenite with Iron-oxide inclusions (SiO2 primarily)
Greenstone (River Pebble)
Metabasalt / Greenschist
Schist
Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)
Glaucophane Schist (Blueschist)
Glaucophane Schist
Gneiss Pebble
Gneiss
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Banded Gneiss
Banded Orthogneiss or Paragneiss (Quartz-Feldspathic Gneiss)
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Gneiss
Gneiss
Gneiss (specifically Pink Gneiss)
Gneiss (high-grade regional metamorphic rock)
Gneiss
Gneiss (High-grade metamorphic rock)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cement)
Sandstone
Arenite
Granitoid (Granite/Gneiss mix)
Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)
Gastropod Steinkern (Internal Mold Fossil)
Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix
Red Aventurine
SiO2 (Silicon Dioxide with Hematite/Goethite inclusions)
Granitic Pegmatite Intrusion in Host Rock
Pegmatite dike in amphibolite or schist
Gneiss
Gneiss
Greenstone
Metabasalt (Greenstone Facies)