Red-orange jasper pebble (tentative)
Microcrystalline quartz, SiO₂, colored mainly by iron oxides
mineral
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
Learn about Man Made Glass in the encyclopedia
View all →
Dyed Imperial Jasper (Sea Sediment Jasper)
Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony
sedimentary
Carborundum
Silicon Carbide (SiC)
mineral
Bismuth Crystal
Bismuth (Bi)
mineral
Aura Rose Quartz
SiO2 (Silicon Dioxide with Titanium/Gold coating)
mineral
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
not a rock (anthropogenic material/technofossil)
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
gemstone
Aura Quartz (Titanium-coated Quartz)
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Sandstone Concretion
Clastic Sedimentary Concretion (SiO2 with Iron Oxide)
sedimentary
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Crackle Agate / Dyed Quartz
SiO2 (Silicon Dioxide)
mineral
Mohave Turquoise (Composite/Stabilized)
Hydrated copper aluminium phosphate (CuAl6(PO4)4(OH)8·4H2O) with stabilizing resin and metallic inclusions
mineral
Concrete
Hydrated Portland Cement Aggregate Composite
Anthropogenic Sedimentary (Man-made)
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
sedimentary
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Asphalt Concrete (Bituminous Concrete)
Bituminous aggregate
sedimentary
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Painted River Rock
Artificially Coated Sedimentary Rock
sedimentary
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Dyed Agate
Chalcedony (SiO2)
mineral
Concretion
Sedimentary Concretion (Ironstone / Calcite Concretion)
sedimentary
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Sandstone (with Liesegang rings or joints)
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide cement)
sedimentary
Sandstone Concretion
Sedimentary Clastic Rock (Silicate-rich)
sedimentary
Sandstone Concretion
Clastic Sedimentary Concretion (typically Quartz/Silica with Iron Oxide)
sedimentary
Opalite
Man-made synthetic glass with opalescent effects (SiO2 + metal oxides)
mineraloid
Blue goldstone
Man-made aventurine glass containing metallic copper particles; not a natural mineral
mineral
Magnetic Hematite (Man-made)
Iron Oxide (Fe2O3) with Barium-Strontium Ferrite
mineral
Diamond
Carbon (C)
gemstone
Weathered iron-rich concretion or ironstone nodule
Goethite–hematite limonite concretion (FeO(OH), Fe₂O₃, and hydrated iron oxides)
sedimentary
Mother of Pearl (Nacre)
Aragonite (CaCO3) with Organic Matrix
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Synthetic/Anthropogenic Mineraloid
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Dyed or synthetic turquoise-blue glass-like specimen
Likely man-made colored glass or resin; exact identification requires testing
mineral
Aura Quartz (Pink/Rose Aura Quartz)
Silicon Dioxide (SiO2) bonded with Platinum and/or Silver
mineral
Aqua Aura Quartz
Titanium/Gold-coated Silicon Dioxide (SiO2)
mineral
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
mineral
Dyed Agate / Painted Stone
Silicon Dioxide (SiO2) with artificial pigment
sedimentary (base), then artificial
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral