Quartz Crystal
Silicon Dioxide (SiO2)
Category
Browse man made metamorphic style composite specimens identified by the Rock Identifier community.
Quartz Crystal
Silicon Dioxide (SiO2)
Hematite (Polished / Tumbled)
Iron Oxide (Fe2O3)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz with Hematite inclusions
Silicon Dioxide (SiO2) with Fe2O3 inclusions
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Chert (Flint)
Microcrystalline Silica (SiO2)
Polished dark-green stone, possibly serpentine or nephrite jade
Serpentine-group minerals, commonly antigorite/lizardite; possible nephrite (actinolite–tremolite amphibole)
Serpentinite
Serpentinite; chiefly serpentine-group minerals (chrysotile, lizardite, antigorite), commonly with magnetite, brucite, and relict olivine/pyroxene
Serpentinite
Serpentinite (Hydrated magnesium iron phyllosilicate)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4
Serpentine / Serpentinite (with Weathering Crust)
Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Serpentinite
Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, and Chrysotile, (Mg,Fe)3Si2O5(OH)4)
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
Serpentinite
Serpentinite (composed largely of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile: Mg3Si2O5(OH)4)
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Serpentine
Antigorite / Lizardite / Chrysotile [(Mg,Fe)3Si2O5(OH)4]
Serpentine
Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Serpentine
Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
Agate (Plume/Moss variety)
Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions
Serpentinite
Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
New Jade (Serpentine)
Antigorite / Serpentine Group (Mg3Si2O5(OH)4)
Eclogite
Eclogite (Omphacite-Garnet rock)
Eclogite
Eclogite (Omphacite-Garnet rock)
Milky Quartz
Silicon Dioxide (SiO2)
Red Quartzite
Quartzite (primarily SiO2)
Quartz (Milky Quartz with Iron Staining)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Thulite in Matrix
Pink Zoisite - Ca2Al3(SiO4)3(OH)
Calcite crystal
Calcite (calcium carbonate, CaCO₃)
Yellow Calcite
Calcium Carbonate (CaCO3)
Specular Hematite with Pyrite
Iron Oxide (Fe2O3) with Iron Sulfide (FeS2)