Nephrite Jade
Nephrite
Mineral/Rock
Category
Antropogenic (Man Made Material)
Browse antropogenic (man made material) specimens identified by the Rock Identifier community.
Clay Brick
Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)
metamorphic (man-made/anthropogenic)
Chert (specifically Tan/Gray Chert)
Microcrystalline quartz (SiO2)
sedimentary
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Ruby in Matrix
Corundum (Al2O3)
mineral
Diamond
Carbon (C)
mineral
Diamond (as set in a gold ring)
Carbon (C)
mineral
Hematite Beads
Hematite (Fe2O3)
Mineral
Diamond (in Jewelry)
Carbon (C)
mineral
Coquina
Bioclastic Limestone
sedimentary
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Terracotta (Man-made ceramic brick fragment)
Baked clay / High-iron ceramic (Silicate-based ceramic)
Anthropogenic material (Man-made sedimentary mimic)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Coquina
Biogenic Limestone (mostly Calcium Carbonate, CaCO3)
sedimentary
Chert
Chert (SiO2)
sedimentary
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Diamond (Cut jewelry specimen)
Diamond (pure Carbon, C)
mineral
Chert (Chert / Flint Variety)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
sedimentary
Diamond
Diamond (pure Carbon, C)
mineral
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Diamond
Diamond (pure Carbon, C)
mineral
Ferruginous Slag (Iron Smelting Byproduct)
Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)
Antropogenic Glass / Mineraloid
Coquina
Bioclastic Limestone (Coquina)
sedimentary
Blue Slag Glass
Amorphous Silica (Industrial byproduct)
Antropogenic (Man-made glass byproduct)
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Green Sea Glass
Amorphous Silica (man-made glass), SiO2 + additive metal oxides
mineraloid / anthropogenic (man-made origin)
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Chert (often called Flint in archaeological contexts)
Silicon Dioxide (SiO2)
sedimentary
Rough Diamond
Pure Carbon (C)
mineral
Chert (specifically Flint)
Chert (SiO2)
sedimentary
Chert (Polished River Pebble)
Chert (SiO2)
sedimentary
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Cherty Shale / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Coquina
Biogenic Limestone (Coquina)
sedimentary
Asphalt (Bituminous Concrete)
Composite material (bitumen binder with mineral aggregate)
man-made rock (technosol)
Sandstone (with potential Arkose/Lithic characteristics)
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
US Penny
Cuprum (Copper: Cu) and Zincum (Zinc: Zn) Alloy
Man-made object (metal alloy)
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Coquina
Bioclastic Limestone (composed primarily of CaCO3)
sedimentary
Sandstone
Arenite (SiO2, often with CaCO3 or Fe2O3 cement)
sedimentary
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary