Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Category
Metamorphic (Man Made)
Browse metamorphic (man made) specimens identified by the Rock Identifier community.
Learn about Metamorphic (Man Made) in the encyclopedia
View all →
Likely slate
Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz
metamorphic
Ornamental ring with likely blue sapphire and diamonds
Blue corundum (sapphire), Al₂O₃; surrounding stones appear diamond, C, set in gold-colored metal
gemstone
Tumbled quartz (likely milky quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Polished greenstone/serpentine pebble (probable)
Serpentinite, dominated by serpentine-group minerals (lizardite/chrysotile); possible accessory olivine or chlorite
metamorphic
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
sedimentary (man-made composite)
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Slate
Metamorphic Pelitic Rock
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Slate
Metamorphic Pelitic Rock
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Arenite
metamorphic
Quartzite
Metamorphic Rock (Mainly SiO2)
metamorphic
Seven Chakra Bonded Stone
Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz
metamorphic
Rounded gray pebble, likely quartzite
Quartzite (predominantly crystalline quartz, SiO₂); identification is tentative from the image
metamorphic
Blue slag glass or dyed glass-like industrial material
Amorphous silicate glass; likely copper-bearing blue slag, but possibly colored man-made glass
mineral
Multicolor quartz bead bracelet
Quartz (silicon dioxide, SiO₂); bead colors may be from different varieties or treated quartz
gemstone
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Green-and-white terrazzo (likely serpentine/marble aggregate)
Composite decorative stone; probable serpentinite (Mg₃Si₂O₅(OH)₄) with white calcite marble fragments in cementitious matrix
metamorphic
Quartzite
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Green Quartzite
Metamorphic Quartz Sandstone (SiO2)
metamorphic
Tumbled serpentine
Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; approximately Mg₃Si₂O₅(OH)₄
metamorphic
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Yellow faceted gemstone, likely citrine or yellow sapphire
Uncertain; probable quartz (SiO₂) or corundum (Al₂O₃)
gemstone
Quartzite
Metamorphic quartz rock (SiO2)
metamorphic
Quartzite
Metamorphic Quartz Rock (SiO2)
metamorphic
Tumbled quartz-rich pebble
Microcrystalline quartz (SiO₂), possibly milky quartz or quartzite
mineral
Blue faceted gemstone ring, likely synthetic sapphire or blue topaz
Uncertain from image; possible corundum (Al₂O₃) or topaz (Al₂SiO₄(F,OH)₂)
gemstone
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Nickel coin (U.S. currency)
Cupronickel (75% Copper, 25% Nickel alloy)
man-made alloy (metallic)
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Marble
Metamorphic Limestone (CaCO3)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)
metamorphic
Red Quartzite
Quartzite (Metamorphic quartz sandstone)
metamorphic
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Greenstone
Metabasalt / Metavolcanic rock
metamorphic
Red Quartzite
Quartzite (Metamorphosed Quartz Arenite)
metamorphic
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic