Granite
Granite (Felsic Plutonic Rock)
Category
Browse metamorphic (man made) specimens identified by the Rock Identifier community.
Granite
Granite (Felsic Plutonic Rock)
Rhodonite beads (possibly dyed or treated, or lower quality Rhodonite)
Manganese inosilicate, (Mn,Fe,Mg,Ca)SiO3
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
Pyrope Garnet (Bohemian Garnets)
Pyrope (from the group Mg3Al2(SiO4)3)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Corundum (Sapphire/Ruby in Matrix)
Aluminium oxide (Al2O3)
Peacock Ore
Bornite (Cu5FeS4)
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Serpentine (Serpentinite)
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
Serpentine (Serpentinite)
Antigorite, Lizardite, and Chrysotile: (Mg,Fe)3Si2O5(OH)4
Quartzite (Lithic Artifact)
Quartzite (SiO2)
Picasso Jasper (or Picasso Marble)
Metamorphosed Limestone (Calcium Carbonate, CaCO3, with impurities)
Serpentinite
Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
Serpentinite
Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
Serpentine (Serpentinite)
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Eclogite garnet in matrix
Eclogite (Garnet-Omphacite rock)
Serpentine
Serpentinite (group of minerals: (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
Schist
Mica Schist (Quartz-Muscovite-Biotite Schist)
River Quartzite Spheroid
Recrystallized Orthoquartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (chiefly SiO2)
Marble
Recrystallized Calcite (CaCO3)
Quartzite Pebble
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Ruby in Fuchsite (often confused with Ruby in Zoisite)
Corundum (Al2O3) in Chromium-rich Muscovite (KAl2(AlSi3O10)(OH)2)
Quartzite Pebble (with iron staining)
Quartzite (SiO2 with ferric oxide impurities)
Quartzite
Quartzite (primarily SiO2)
Kyanite (Blue or Blue-Grey)
Kyanite (Al2SiO5)
Gneiss
Gneiss
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2), a variety of Actinolite-Tremolite
Milky Quartz
Silicon Dioxide (SiO2)
Blue Kyanite
Kyanite (Al2SiO5)
Almandine Garnet
Almandine (Fe3Al2Si3O12)
Bornite
Bornite (Cu5FeS4)