Rock Identifier

Category

Synthetic (Not A Natural Rock)

Browse synthetic (not a natural rock) specimens identified by the Rock Identifier community.

Learn about Synthetic (Not A Natural Rock) in the encyclopedia

Asphalt Rock

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Chalk

Zircon

Obsidian

Kimberlite

Emerald in Matrix

Emerald in Matrix

Tripolite

Guano

Halite

Aquamarine Matrix

Aquamarine Matrix

Rock Salt

Agate (Carnelian / Yellow Agate) (Silicon Dioxide (SiO2)) — gemstone

Agate (Carnelian / Yellow Agate)

Silicon Dioxide (SiO2)

Diamond (in jewelry) (Diamond (Carbon, C)) — mineral

Diamond (in jewelry)

Diamond (Carbon, C)

Aura Quartz (Silicon Dioxide (SiO2) with metallic vapor coating) — mineral

Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Dyed Quartz Geode (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Quartz (Citrine or Iron-stained variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-stained variety)

Silicon Dioxide (SiO2)

Uncertain rounded gray stone (Possibly granite, gneiss, or a glacially transported granitoid) — igneous

Uncertain rounded gray stone

Possibly granite, gneiss, or a glacially transported granitoid

Connemara Marble (Ophiocalcite (Serpentinitic Marble)) — metamorphic

Connemara Marble

Ophiocalcite (Serpentinitic Marble)

Green Chalcedony (Green Agate) (Silicon Dioxide (SiO2)) — mineral

Green Chalcedony (Green Agate)

Silicon Dioxide (SiO2)

Dyed Blue Quartz (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Blue Quartz

Silicon Dioxide (SiO2) with artificial pigment

Copper Composite Turquoise (Purple and Blue) (Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding) — gemstone

Copper Composite Turquoise (Purple and Blue)

Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding

Granite (Granite (Felsic Intrusive)) — igneous

Granite

Granite (Felsic Intrusive)

Granite (Granite) — igneous

Granite

Granite

Dyed blue howlite (turquoise imitation), possibly dyed magnesite (Howlite: Ca₂B₅SiO₉(OH)₅; the vivid blue color is artificial dye. Exact identification is uncertain from the photograph alone.) — gemstone

Dyed blue howlite (turquoise imitation), possibly dyed magnesite

Howlite: Ca₂B₅SiO₉(OH)₅; the vivid blue color is artificial dye. Exact identification is uncertain from the photograph alone.

Titanium Coated Quartz (Aura Quartz) (Silicon dioxide with titanium vapor deposition (SiO2)) — mineral

Titanium Coated Quartz (Aura Quartz)

Silicon dioxide with titanium vapor deposition (SiO2)

Dyed Blue Agate Slice (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Dyed Blue Agate Slice

Chalcedony (Silicon Dioxide, SiO2)

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Aura Amethyst (Dyed/Coated) (Titanium-treated Silicon Dioxide (SiO2)) — mineral

Aura Amethyst (Dyed/Coated)

Titanium-treated Silicon Dioxide (SiO2)

Quartz (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

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

Quartz (Smoky Quartz)

Silicon Dioxide (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Tumbled greenstone/chlorite-rich pebble (Likely chlorite-rich greenschist or altered basalt; exact identification requires testing) — metamorphic

Tumbled greenstone/chlorite-rich pebble

Likely chlorite-rich greenschist or altered basalt; exact identification requires testing

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

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Magnetite (Lodestone variety) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Emerald (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — mineral

Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Red Tiger's Eye (Silicon Dioxide (SiO2) with iron oxide inclusions) — gemstone

Red Tiger's Eye

Silicon Dioxide (SiO2) with iron oxide inclusions

Citrine (or Yellow Chalcedony / Quartz) (Silicon Dioxide (SiO2)) — mineral

Citrine (or Yellow Chalcedony / Quartz)

Silicon Dioxide (SiO2)

Seven Chakra Bonded Stone (Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz) — metamorphic

Seven Chakra Bonded Stone

Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Natural Diamond (Faceted) (Diamond (pure carbon crystal, C)) — mineral

Natural Diamond (Faceted)

Diamond (pure carbon crystal, C)

Amethyst (Chevron Amethyst) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Chevron Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Magnetite (Iron Ore) (Magnetite (Fe3O4)) — mineral

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Black Jasper with Quartz (Silicon Dioxide (SiO2) with impurities) — sedimentary

Black Jasper with Quartz

Silicon Dioxide (SiO2) with impurities

Jasper Pebble (Silicon dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper Pebble

Silicon dioxide (SiO2) with iron oxide impurities

Agate (SiO2) — Mineral

Agate

SiO2

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Blue Howlite (Dyed) (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Jasper River Stone (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper River Stone

Silicon Dioxide (SiO2) with iron oxide inclusions