Granite
Granite (phaneritic felsic intrusive rock)
igneous
Category
Man Made (Synthetic Rock)
Browse man made (synthetic rock) specimens identified by the Rock Identifier community.
Learn about Man Made (Synthetic Rock) in the encyclopedia
View all →
Granite
Granite (a phaneritic intrusive igneous rock)
igneous
Granodiorite
Granodiorite
Igneous
Sandstone (with iron staining)
Quartz Arenite / Ferruginous Sandstone
sedimentary
Granite
Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)
igneous
Breccia
Breccia
sedimentary
Faceted Diamond or Cubic Zirconia
Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ
mineral
Asphalt (Bituminous Concrete)
Composite material (bitumen binder with mineral aggregate)
man-made rock (technosol)
Blue Quartz / Glass Gemstone Pendant
SiO2 (Silicon Dioxide) or Synthetic Glass
gemstone
Diamond (or Cubic Zirconia simulant)
C (Carbon) or ZrO2 (Zirconium Dioxide)
gemstone
Diamond (in a jewelry setting)
Diamond (Carbon, C)
mineral
Diamond or Cubic Zirconia
Carbon (diamond) or Zirconium dioxide (cubic zirconia)
gemstone
Sandstone (Pebble)
Arenite
sedimentary
Emerald
Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities
gemstone
Silicon Carbide (Carborundum)
Moissanite (SiC), though mostly synthetic
mineral
Basalt
Basalt
igneous
Lapidary Wax (imitation/wax model)
Hydrocarbon wax blend with colorant (imitating Lapis Lazuli/Emerald)
mineral
Colorless Gemstone (possibly Diamond or Cubic Zirconia)
C (Diamond) or ZrO2 (Cubic Zirconia)
gemstone
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Desert Rose (Baryte or Gypsum Rose)
Baryte (BaSO4) or Gypsum (CaSO4·2H2O)
mineral
Dyed Agate
Agate (Cryptocrystalline Quartz), SiO2
Mineral
Sapphire
Corundum (Al2O3)
gemstone
Aura Quartz
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Diamond (Faceted Colorless)
Diamond (Pure Carbon, C)
mineral
Polished blue-green glassy slag or coated mineral fragment
Most likely man-made colored glass/slag; exact composition cannot be determined visually
mineral
Ruby
Corundum (Al2O3)
mineral
Tektite
Natural impact glass
meteorite
Sandstone
Arenite (SiO2 primarily)
sedimentary
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Blue faceted gemstones, likely blue sapphire
Corundum (Al₂O₃), blue varieties colored chiefly by iron and titanium
gemstone
Geode (Unopened)
Quartz Geode (SiO2) / Chalcedony Concretion
mineral
Red synthetic corundum (ruby-colored lab-grown sapphire)
Corundum, aluminum oxide (Al₂O₃), likely synthetic and chromium-colored
gemstone
Cat's Eye Moonstone (Simulated/Synthetic or natural Cat's Eye Quartz/Glass)
There is no single scientific name. The appearance suggests either: Moonstone (feldspar group), Cat's Eye Quartz (SiO2), Apatite (Ca5(PO4)3(F,Cl,OH)), or most likely a synthetic material such as Fiber Optic Glass or 'Opalite' (a type of glass).
Mineral
Chert
Microcrystalline quartz (SiO2)
sedimentary
Crinoid Fossil in Limestone
Crinoid columnal (Class Crinoidea) in biomicrite
fossil
Sandstone
Sandstone (Quartz-rich Arenite / SiO2)
sedimentary
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granodiorite
Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)
igneous
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
metamorphic
Yooperlite (Syenite clast containing fluorescent Sodalite)
Sodalite-bearing Syenite
igneous
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary