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

Dyed Agate (Chalcedony (SiO2)) — mineral

Dyed Agate

Chalcedony (SiO2)

Jasper-bearing Quartzite River Cobble (Tectonized Quartzite with Iron-Oxide (Hematite/Limonite) Veining) — metamorphic

Jasper-bearing Quartzite River Cobble

Tectonized Quartzite with Iron-Oxide (Hematite/Limonite) Veining

Mystic Topaz (Treated Quartz or Topaz) (Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating) — gemstone

Mystic Topaz (Treated Quartz or Topaz)

Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating

Faceted Citrine (Citrine Quartz (Silicon Dioxide, SiO2)) — gemstone

Faceted Citrine

Citrine Quartz (Silicon Dioxide, SiO2)

Pearl (Biogenic CaCO3 (Aragonite)) — mineral

Pearl

Biogenic CaCO3 (Aragonite)

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Pearl (Biogenic Gemstone) (Calcium Carbonate (Aragonite and Calcite) with Conchiolin) — gemstone

Pearl (Biogenic Gemstone)

Calcium Carbonate (Aragonite and Calcite) with Conchiolin

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

Citrine Quartz / Iron-stained Quartz

Silicon Dioxide (SiO2)

Pyrite in Matrix (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix

Iron Sulfide (FeS2)

Chalcedony (Blue Agate Nodules) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Blue Agate Nodules)

Silicon Dioxide (SiO2)

Amethyst (Silicon Dioxide (SiO2) containing iron impurities and irradiation) — mineral

Amethyst

Silicon Dioxide (SiO2) containing iron impurities and irradiation

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

Aura Quartz Geode (Angel Aura Quartz) (Silicon Dioxide (SiO2) bonded with precious metals) — mineral

Aura Quartz Geode (Angel Aura Quartz)

Silicon Dioxide (SiO2) bonded with precious metals

Hemimorphite or Red Quartz (SiO2 (Quartz) / Zn4Si2O7(OH)2·H2O (Hemimorphite)) — mineral

Hemimorphite or Red Quartz

SiO2 (Quartz) / Zn4Si2O7(OH)2·H2O (Hemimorphite)

Citrine (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Citrine

Silicon Dioxide (SiO2) with iron impurities

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Green Calcite or Prasiolite (Green Quartz) (Calcium carbonate (CaCO3) or Silicon dioxide (SiO2)) — mineral

Green Calcite or Prasiolite (Green Quartz)

Calcium carbonate (CaCO3) or Silicon dioxide (SiO2)

Amethyst and Rose Quartz Jewelry (Silicon Dioxide (SiO2)) — gemstone

Amethyst and Rose Quartz Jewelry

Silicon Dioxide (SiO2)

Tumbled Aventurine and Smoky Quartz (Ametrine variant) (Silicon Dioxide (SiO2)) — mineral

Tumbled Aventurine and Smoky Quartz (Ametrine variant)

Silicon Dioxide (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Natural Freshwater Pearl (Calcium Carbonate (Aragonite and Calcite), CaCO3) — gemstone

Natural Freshwater Pearl

Calcium Carbonate (Aragonite and Calcite), CaCO3

Quartzite (River Pebbles) (Metamorphosed Sandstone (SiO2)) — metamorphic

Quartzite (River Pebbles)

Metamorphosed Sandstone (SiO2)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Engineered Quartz (Silicon dioxide composite) — manufactured stone

Engineered Quartz

Silicon dioxide composite

manufactured stone

Diamond (Cut and Polished) (Carbon (C)) — gemstone

Diamond (Cut and Polished)

Carbon (C)

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

Dyed Quartz Crystal

Silicon Dioxide (SiO2) with artificial pigment

Tektite (Indochinite) (Natural glass (High-silica impact glass)) — mineral

Tektite (Indochinite)

Natural glass (High-silica impact glass)

Granite Pebble (Granite) — igneous

Granite Pebble

Granite

Smoky Quartz (Faceted) (Silicon Dioxide (SiO2)) — gemstone

Smoky Quartz (Faceted)

Silicon Dioxide (SiO2)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Glauconitic Siltstone / Mudstone (Glauconitic Pelite) — sedimentary

Glauconitic Siltstone / Mudstone

Glauconitic Pelite

Dyed Agate (SiO2 (Silicon Dioxide)) — Mineral

Dyed Agate

SiO2 (Silicon Dioxide)

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Dyed Agate (SiO2) — mineral

Dyed Agate

SiO2

Granite (Granite (Mainly SiO2 and Al2O3)) — igneous

Granite

Granite (Mainly SiO2 and Al2O3)

Quartz Sand and Gravel (Silicon dioxide (SiO2)) — sedimentary

Quartz Sand and Gravel

Silicon dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Dyed Howlite (Turquenite)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Cubic Zirconia (Zirconium dioxide (ZrO2)) — mineralogical simulant / gemstone

Cubic Zirconia

Zirconium dioxide (ZrO2)

mineralogical simulant / gemstone

Aura Quartz (Coated Quartz) (Silicon Dioxide (SiO2) coated with vaporized metals) — mineral

Aura Quartz (Coated Quartz)

Silicon Dioxide (SiO2) coated with vaporized metals