Rock Identifier

Category

Synthetic Glass

Browse synthetic glass specimens identified by the Rock Identifier community.

Learn about Synthetic Glass in the encyclopedia

Opalite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Zincite

Sideromelane

Lead Feldspar

Black Obsidian

Maskelynite

Obsidian

Tachylite

Hyalite Opal

Perlite

Macusanite

Turquoise cabochon jewelry (Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O) — gemstone

Turquoise cabochon jewelry

Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O

Blue Sapphire (Corundum (Al2O3) with traces of Iron and Titanium) — mineral

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Malachite (Copper carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Cubic Zirconia (Faceted) (Zirconium dioxide (ZrO2)) — gemstone

Cubic Zirconia (Faceted)

Zirconium dioxide (ZrO2)

Anthropogenic Heat Source (Electronic/Industrial Interface) (Thermal IR emission (Electronic infrastructure)) — not a rock or mineral

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

not a rock or mineral

Cubic Zirconia (Zirconium Dioxide (ZrO2)) — mineral

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Rough Corundum (likely Sapphire or Common Corundum) (Aluminum oxide (Al2O3)) — mineral

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)

Iridescent coated quartz (likely synthetic/display gemstone) (Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually) — gemstone

Iridescent coated quartz (likely synthetic/display gemstone)

Quartz, silicon dioxide (SiO₂), likely faceted and surface-coated; exact material cannot be confirmed visually

Pink Dyed Agate (Silicon Dioxide (SiO2) - Variety Agate) — mineral

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Blue sapphire ring (Corundum, aluminum oxide (Al₂O₃), blue variety colored mainly by iron and titanium) — gemstone

Blue sapphire ring

Corundum, aluminum oxide (Al₂O₃), blue variety colored mainly by iron and titanium

Bismuth (Bismuth (Bi)) — mineral

Bismuth

Bismuth (Bi)

Painted River Rock (Polished fluvial clast with acrylic/synthetic pigment coating) — Sedimentary or Metamorphic (base substrate)

Painted River Rock

Polished fluvial clast with acrylic/synthetic pigment coating

Sedimentary or Metamorphic (base substrate)

Silicon Carbide (Carborundum) (Moissanite (SiC)) — mineral

Silicon Carbide (Carborundum)

Moissanite (SiC)

Synthetic Ruby (Jewel Bearings) (Synthetic Corundum (Al2O3 doped with Chromium)) — mineral

Synthetic Ruby (Jewel Bearings)

Synthetic Corundum (Al2O3 doped with Chromium)

Diamond (Diamond (C - Pure Carbon)) — gemstone

Diamond

Diamond (C - Pure Carbon)

Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Dyed Agate (Silicon Dioxide (SiO2) - variety Chalcedony) — mineral

Dyed Agate

Silicon Dioxide (SiO2) - variety Chalcedony

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby (Corundum (Al2O3 with Chromium traces)) — mineral

Ruby

Corundum (Al2O3 with Chromium traces)

Cubic Zirconia (Set in Jewelry) (Zirconium Dioxide (ZrO2)) — gemstone

Cubic Zirconia (Set in Jewelry)

Zirconium Dioxide (ZrO2)

Diamond (or Cubic Zirconia) (Carbon (C) or Zirconium Dioxide (ZrO2)) — gemstone

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Ruby (Corundum (Al2O3)) — gemstone

Ruby

Corundum (Al2O3)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Diamond (Faceted Gemstone) (Native Carbon (C)) — mineral

Diamond (Faceted Gemstone)

Native Carbon (C)

Lapis Lazuli (Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Emerald in Matrix (Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium

Man-made Jewelry Charm (Enameled Metal) (Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.) — Synthetic / Manufactured Artifact

Man-made Jewelry Charm (Enameled Metal)

Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.

Synthetic / Manufactured Artifact

Red Agate (Carnelian) (Silicon Dioxide (SiO2)) — gemstone

Red Agate (Carnelian)

Silicon Dioxide (SiO2)

Carnelian (Carnelian (Cryptocrystalline Quartz, SiO2)) — mineral

Carnelian

Carnelian (Cryptocrystalline Quartz, SiO2)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Diamond (or Cubic Zirconia) (Carbon (C) or Zirconium Dioxide (ZrO2)) — gemstone

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Bismuth Crystal (Bismuth (element symbol Bi, atomic number 83)) — mineral

Bismuth Crystal

Bismuth (element symbol Bi, atomic number 83)

Coal (Bituminous or Anthracite) (Carbonaceous Sedimentary Rock) — sedimentary

Coal (Bituminous or Anthracite)

Carbonaceous Sedimentary Rock

Ruby (varietal of Corundum) (Corundum (Al2O3:Cr)) — gemstone

Ruby (varietal of Corundum)

Corundum (Al2O3:Cr)

Rough Ruby (Corundum (Al2O3 with Chromium impurities)) — mineral

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Hematite (Iron(III) oxide, Fe2O3) — mineral

Hematite

Iron(III) oxide, Fe2O3

Dyed Purple Agate Sliced Tablet (Silicon Dioxide (SiO2), variety Chalcedony) — gemstone

Dyed Purple Agate Sliced Tablet

Silicon Dioxide (SiO2), variety Chalcedony

Emerald (Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) colored by Chromium and/or Vanadium

Blue Sapphire (Corundum (Al2O3 with Cr, Fe, and Ti trace elements)) — gemstone

Blue Sapphire

Corundum (Al2O3 with Cr, Fe, and Ti trace elements)

Ruby (Corundum (Al2O3)) — mineral

Ruby

Corundum (Al2O3)