Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Or Igneous Alteration
Browse metamorphic or igneous alteration specimens identified by the Rock Identifier community.
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium
mineral
Agate
Silicon dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
metamorphic
Ruby in Zoisite (Anyolite)
Anyolite (Combination of Corundum and Zoisite)
metamorphic
Mixed Tumbled Stones Collection
Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)
multiple
Quartzite
Metamorphic Quartz Sandstone (SiO2)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
White Quartz (Mushroom Carving)
Quartz (Silicon Dioxide - SiO2)
mineral
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Granite Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Kyanite
Kyanite (Al2SiO5)
Mineral
Garnet (Almandine)
Almandine, Fe3Al2(SiO4)3
metamorphic
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Schist
Mica Schist
metamorphic
Red Quartzite
Quartzite (SiO2 with iron oxide impurities)
metamorphic
Moonstone (Tumbled)
Orthoclase Feldspar (KAlSi3O8) with inclusions of Albite
mineral
Quartzite
Metamorphic rock (primarily SiO2)
metamorphic
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
metamorphic
Green Aventurine (Fuchsite-bearing Quartz)
Silicon Dioxide with Chromium-rich Muscovite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Emerald in Matrix
Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities
mineral
Red aventurine
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Limonite after Pyrite (Prophecy Stone or Ironstone Concretion)
Goethite/Limonite pseudomorph after Pyrite/Marcasite (FeO(OH)·nH2O)
mineral
Peach Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8) with inclusions
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Mineral (Variety of Quartz)
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Rough Ruby (Corundum) in Zoisite Matrix
Al2O3 (Aluminum Oxide) with Ca2Al3(SiO4)3(OH)
mineral
Raw Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Tiger's Eye
Silicon Dioxide with inclusions (SiO2)
mineral
Amazonite
Microline Feldspar (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (mostly SiO2)
metamorphic
Green Kyanite
Kyanite (Al2SiO5)
mineral
Sunstone with Moonstone (Peach Moonstone)
Orthoclase Feldspar (KAlSi3O8)
mineral
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Tanzanite
Blue-violet Zoisite (Ca2Al3(SiO4)3(OH))
mineral