Milky Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Milky Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Banded Agate
Silicon Dioxide (SiO2)
Unakite
Unakite (Epidotized Granite)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (group of hydrous magnesium iron phyllosilicates)
Quartzite
Quartzite (SiO2)
Ruby in Zoisite
Anyolite (Zoisite with Corundum) Member of the Epidote Group
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2 + K(Al,Cr)2AlSi3O10(OH)2
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Emerald (Beryl)
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Green Aventurine (Propably a tumbled variety)
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Agate (Chalcedony)
Silicon Dioxide (SiO2)
Gossan (Iron Hat)
Limonitic Gossan (Fe-oxide/hydroxide complex)
Jadeite (variety of Jade)
Jadeite, NaAlSi₂O₆
Aventurine (Green Quartz)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)
Chalcopyrite
Chalcopyrite (CuFeS2)
Jasper in Rhyolite matrix
Silicon Dioxide (SiO2) with various inclusions in Felsic Igneous matrix
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Greenschist (Greenstone)
Chlorite Schist / Greenschist Facies Rock
Alexandrite
Chrysoberyl (BeAl2O4 with Chromium impurities)
Dumortierite Quartz (Blue Quartz)
Al7(BO3)(SiO4)3O3 / Quarz with Dumortierite inclusions
Magnetite
Magnetite (Fe3O4)
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Red Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
Rainbow Moonstone with Black Tourmaline
White Labradorite with Schorl (Na,Ca)(Al,Si)4O8
Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
Citrine
Silicon dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Citrine or Yellow Quartz
Silicon Dioxide (SiO2) with iron impurities
Ruby (Corundum)
Corundum (Aluminum Oxide) with chromium trace elements, Al2O3
Green Quartzite (Aventurine-like)
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)