Rock Identifier

Category

Synthetic (Not A Natural Rock)

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

Emerald (Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities) — mineral

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Not a rock (Not a rock) — Not a rock

Not a rock

Not a rock

Rough Emerald (Beryl) (Emerald (Be3Al2(SiO3)6 with Cr/V impurities)) — mineral

Rough Emerald (Beryl)

Emerald (Be3Al2(SiO3)6 with Cr/V impurities)

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

Synthetic Ruby (Jewel Bearings)

Synthetic Corundum (Al2O3 doped with Chromium)

Magnetite (likely in Hematite or Ironstone) (Magnetite (Fe3O4)) — mineral

Magnetite (likely in Hematite or Ironstone)

Magnetite (Fe3O4)

Synthetic Costume Accessory (Non-Geological) (Polyester and Acrylic Fiber (Anthropogenic polymer)) — Synthetic / Man-made textile

Synthetic Costume Accessory (Non-Geological)

Polyester and Acrylic Fiber (Anthropogenic polymer)

Synthetic / Man-made textile

Amethyst (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Blue Goldstone (Aventurine Glass (Silicon Dioxide with metal inclusions)) — man-made glass mineral simulant

Blue Goldstone

Aventurine Glass (Silicon Dioxide with metal inclusions)

man-made glass mineral simulant

Turquoise (Turquoise (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Dyed Chalcedony (Agate) (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Chalcedony (Agate)

Silicon Dioxide (SiO2) with artificial pigment

Fancy Jasper (Chalcedony (cryptocrystalline quartz) with inclusions) — Mineral

Fancy Jasper

Chalcedony (cryptocrystalline quartz) with inclusions

Peacock Ore (Bornite/Chalcopyrite) (Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite/Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)

Quartz (likely Milky Quartz) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely Milky Quartz)

Quartz (SiO₂ - Silicon Dioxide)

Fluorite (Rainbow Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

Jasper (Silicon dioxide (SiO2)) — Mineral

Jasper

Silicon dioxide (SiO2)

Basalt (with Porphyritic/Vesicular texture) (Extrusive mafic igneous rock) — igneous

Basalt (with Porphyritic/Vesicular texture)

Extrusive mafic igneous rock

Quartz (Variety: Citrine or Tumbled Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Quartz (Variety: Citrine or Tumbled Chalcedony)

Silicon Dioxide (SiO2)

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

Amethyst (Cabochon)

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Rose-tinted variation) (Silicon Dioxide (SiO2) with trace iron impurities) — mineral

Amethyst (Rose-tinted variation)

Silicon Dioxide (SiO2) with trace iron impurities

Travertine (used in construction, not a 'specimen' in situ) (Travertine) — Sedimentary

Travertine (used in construction, not a 'specimen' in situ)

Travertine

Tahitian Black Pearl (Biogenic Calcium Carbonate (Aragonite/Conchiolin Mixture), CaCO3) — mineral

Tahitian Black Pearl

Biogenic Calcium Carbonate (Aragonite/Conchiolin Mixture), CaCO3

Citrine Quartz (Yellow Quartz) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Quartz (Yellow Quartz)

Silicon Dioxide (SiO2) with iron impurities

Yellow Chalcedony (Agate/Carnelian variant) (Silicon Dioxide (SiO₂)) — mineral

Yellow Chalcedony (Agate/Carnelian variant)

Silicon Dioxide (SiO₂)

Smoky Quartz (Silicon Dioxide (SiO2) with trace aluminum and irradiation) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with trace aluminum and irradiation

Smoky Quartz in Matrix (Pegmatite) (Silicon Dioxide (SiO2) with Potassium Feldspar and Biotite mica) — igneous

Smoky Quartz in Matrix (Pegmatite)

Silicon Dioxide (SiO2) with Potassium Feldspar and Biotite mica

Citrine Quartz Sphere (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz Sphere

Silicon Dioxide (SiO2)

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

Dyed Quartz Geode

Silicon Dioxide (SiO2) with artificial pigment

Moonstone (Orthoclase feldspar ((K,Na)AlSi3O8)) — mineral

Moonstone

Orthoclase feldspar ((K,Na)AlSi3O8)

Moonstone (Orthoclase Feldspar (KAlSi3O8)) — mineral

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Blue Crackle Quartz (Dyed Fire Agate/Quartz) (Silicon Dioxide (SiO2) with artificial dye treatment) — mineral

Blue Crackle Quartz (Dyed Fire Agate/Quartz)

Silicon Dioxide (SiO2) with artificial dye treatment

Clear Quartz (Silicon Dioxide (SiO2)) — Mineral

Clear Quartz

Silicon Dioxide (SiO2)

Gold Nugget (Native Gold (Au)) — Mineral

Gold Nugget

Native Gold (Au)

Amethyst (vibrant lilac/purple variety) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (vibrant lilac/purple variety)

Silicon Dioxide (SiO2) with iron impurities

Tiger's Eye (often misinterpreted as Gold Ore in this context) (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye (often misinterpreted as Gold Ore in this context)

Pseudomorph of Quartz after Crocidolite (SiO2)

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

Howlite (Dyed Turquoise)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

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

Diamond (set in jewelry)

Diamond (Carbon, C)

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

Emerald

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Moonstone (Feldspar variety) (Orthoclase Feldspar (KAlSi3O8)) — mineral

Moonstone (Feldspar variety)

Orthoclase Feldspar (KAlSi3O8)

Aura Quartz (Titanium-coated Silicon Dioxide (SiO2)) — mineral

Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Emerald (Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium) — Mineral (Gemstone variety of Beryl)

Emerald

Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium

Mineral (Gemstone variety of Beryl)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)