Faceted Quartz or Cubic Zirconia
SiO2 (Quartz) or ZrO2 (Cubic Zirconia)
gemstone
Category
Synthetic (Ceramic)
Browse synthetic (ceramic) specimens identified by the Rock Identifier community.
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Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Feldspar (Plagioclase / Orthoclase)
KAlSi3O8 / CaAl2Si2O8 - NaAlSi3O8
mineral
Lepidolite on Pegmatite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) in Granitic Pegmatite
igneous
Limonite
Hydrous ferric oxides (FeO(OH)·nH2O)
sedimentary
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Pegmatite (Quartz with Tourmaline/Biotite inclusions)
Igneous Pegmatite
igneous
Lepidolite
K(Li,Al)3(Al,Si,IV)4O10(F,OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Cobble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Milky Quartz
Silicon dioxide (SiO2)
mineral
Magnetic Hematite (Man-made)
Iron Oxide (Fe2O3) with Barium-Strontium Ferrite
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Opalite
Synthetic opalescent glass
glass
Coal (likely Bituminous or Lignite)
Organic Sedimentary Rock (Carbonaceous)
sedimentary
Opalite
Synthetic Opalised Glass
glass
Opalite
Synthetic Opalised Glass
mineral
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary
Opalite
Synthetic Opalized Glass
mineraloid (man-made)
Ruby (Raw Corundum)
Al2O3 (Aluminum Oxide)
mineral
Opalite
Synthetic Opalized Glass
gemstone
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Opalite
Synthetic Opalised Glass
Mineral (Synthetic / Man-made)
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
mineraloid (synthetic)
Opalite
Synthetic Opalised Glass
mineral
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Dyed Howlite (Purple)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Hematite (Oolitic or Earthy variety)
Iron(III) oxide (Fe2O3)
mineral
Porcelain (Stoneware Ceramic)
Mullite / Silica-glass composite (Al6Si2O13)
metamorphic (man-made)
Cubic Zirconia (Jewelry Setting)
Zirconium Dioxide (ZrO2)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Blue Goldstone
Man-made glass with crystalline copper/cobalt inclusions
mineral
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Cubic Zirconia and Synthetic Ruby Jewelry
Cubic Zirconia (ZrO2) and Synthetic Corundum (Al2O3)
gemstone
Gemstone Ring
Various (Likely Glass, Cubic Zirconia, or assorted semi-precious stones)
gemstone
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Lepidolite in Quartz Matrix
Lepidolite (K(Li,Al)3(Al,Si)4O10(F,OH)2) in Quartz (SiO2) matrix
igneous
Quartzite Pebble
Quartzite (SiO2)
metamorphic