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

Tektite (Indochinite) (Tektite (High-silica natural glass)) — mineraloid

Tektite (Indochinite)

Tektite (High-silica natural glass)

Tektite (Tektite (high-silica natural glass)) — Mineraloid

Tektite

Tektite (high-silica natural glass)

Desert Rose (Baryte (BaSO4) or Gypsum (CaSO4·2H2O) with sand inclusions) — mineral

Desert Rose

Baryte (BaSO4) or Gypsum (CaSO4·2H2O) with sand inclusions

Yellow Topaz (Imperial/Golden Topaz) (Topaz - Al2SiO4(F,OH)2) — gemstone

Yellow Topaz (Imperial/Golden Topaz)

Topaz - Al2SiO4(F,OH)2

Titanium Aura Quartz (Silicon Dioxide (SiO2) coated with Titanium and Niobium) — mineral

Titanium Aura Quartz

Silicon Dioxide (SiO2) coated with Titanium and Niobium

Garnet (Garnet (X3Y2(SiO4)3)) — mineral

Garnet

Garnet (X3Y2(SiO4)3)

Rainbow Pyrite (Iron Sulfide (FeS2) with iridescent oxidation) — mineral

Rainbow Pyrite

Iron Sulfide (FeS2) with iridescent oxidation

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Opal (Hydrated amorphous silica (SiO2·nH2O)) — mineral

Opal

Hydrated amorphous silica (SiO2·nH2O)

Tektite (Indochinite) (Tektite (High-silica natural glass)) — meteorite

Tektite (Indochinite)

Tektite (High-silica natural glass)

Black Obsidian (Obsidian / Amorphous volcanic glass (SiO2)) — igneous

Black Obsidian

Obsidian / Amorphous volcanic glass (SiO2)

Diamond (Cut Gemstone) (Carbon (C)) — mineral

Diamond (Cut Gemstone)

Carbon (C)

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

Quartz (Pebble)

Silicon Dioxide (SiO2)

Tektite (Indochinite) (Tektite (High-silica natural glass)) — mineraloid

Tektite (Indochinite)

Tektite (High-silica natural glass)

Pearl (Aragonite / Calcium Carbonate (CaCO3)) — mineral

Pearl

Aragonite / Calcium Carbonate (CaCO3)

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

Diamond (in jewelry)

Carbon (C)

Diamond (Carbon (C) - Native Element) — mineral

Diamond

Carbon (C) - Native Element

Diamond (Faceted) (Carbon (C)) — gemstone

Diamond (Faceted)

Carbon (C)

Diamond in Kimberlite (Diamond (C in Kimberlite)) — igneous

Diamond in Kimberlite

Diamond (C in Kimberlite)

Diamond (Set in Jewelry) (Carbon (C)) — gemstone

Diamond (Set in Jewelry)

Carbon (C)

Quartzite with inclusions or a banded chert (Quartzite or Chert) — Metamorphic or Sedimentary

Quartzite with inclusions or a banded chert

Quartzite or Chert

Metamorphic or Sedimentary

Amethyst (Quartz (Silicon Dioxide with iron impurities), SiO2) — mineral

Amethyst

Quartz (Silicon Dioxide with iron impurities), SiO2

Citrine (Silicon Dioxide (Quartz variety), SiO2) — mineral

Citrine

Silicon Dioxide (Quartz variety), SiO2

Citrine (Silicon Dioxide (Quartz variety), SiO2) — mineral

Citrine

Silicon Dioxide (Quartz variety), SiO2

Snakeskin Agate (Microcrystalline Quartz (SiO2) with chalcedony inclusions) — sedimentary

Snakeskin Agate

Microcrystalline Quartz (SiO2) with chalcedony inclusions

Rough Diamond (Diamond (pure Carbon, C)) — mineral

Rough Diamond

Diamond (pure Carbon, C)

Pumice (Pumice (Amorphous silicate glass with trapped gas bubbles)) — igneous

Pumice

Pumice (Amorphous silicate glass with trapped gas bubbles)

Aura Quartz Geode (Titanium/Gold bonded Quartz (SiO2 with metallic coating)) — mineral

Aura Quartz Geode

Titanium/Gold bonded Quartz (SiO2 with metallic coating)

Diamond (C) — gemstone

Diamond

C

Obsidian (Blue) (Volcanic Glass (SiO2)) — igneous

Obsidian (Blue)

Volcanic Glass (SiO2)

Chert (Yellow Jasper) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Yellow Jasper)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

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

Amethyst (Rough)

Silicon Dioxide (SiO2) with iron impurities

Diamond (or Diamond Simulant) (Carbon (C)) — mineral

Diamond (or Diamond Simulant)

Carbon (C)

Diamond (Cubic Carbon (C)) — mineral

Diamond

Cubic Carbon (C)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Marble (Sculptural Statue) (Metamorphic Limestone (CaCO3)) — metamorphic

Marble (Sculptural Statue)

Metamorphic Limestone (CaCO3)

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

Dyed Howlite (often sold as Turquenite)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Red Jasper (Red Jasper (SiO2 with Hematite inclusions)) — mineral

Red Jasper

Red Jasper (SiO2 with Hematite inclusions)

Smoky Quartz with Rutile Inclusions (Silicon Dioxide (SiO2) with TiO2 needles) — mineral

Smoky Quartz with Rutile Inclusions

Silicon Dioxide (SiO2) with TiO2 needles

Amethyst Beads (Quartz (Silicon Dioxide, SiO2 with iron impurities)) — gemstone

Amethyst Beads

Quartz (Silicon Dioxide, SiO2 with iron impurities)

Glacially transported granite and gneiss boulders (Granite (quartz–feldspar–mica); banded specimens likely gneiss) — igneous and metamorphic

Glacially transported granite and gneiss boulders

Granite (quartz–feldspar–mica); banded specimens likely gneiss

igneous and metamorphic