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

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

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

Citrine

Citrine (Silicon Dioxide, SiO2)

Smoky Quartz (Silicon dioxide (SiO2)) — mineral

Smoky Quartz

Silicon dioxide (SiO2)

Quartz (Gray/Smoky Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Gray/Smoky Variety)

Silicon Dioxide (SiO2)

Smoky Quartz (SiO2 (Silicon Dioxide)) — mineral

Smoky Quartz

SiO2 (Silicon Dioxide)

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

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Amethyst (Rough Crystal)

Silicon Dioxide (SiO2) with iron impurities

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

Citrine

Silicon Dioxide (Quartz variety), SiO2

Amethyst (Quartz (SiO2)) — gemstone

Amethyst

Quartz (SiO2)

Amethyst (Quartz (SiO2)) — mineral

Amethyst

Quartz (SiO2)

Amethyst (Silicon Dioxide (SiO2) with trace amounts of Iron (Fe3+)) — mineral

Amethyst

Silicon Dioxide (SiO2) with trace amounts of Iron (Fe3+)

Raw Topaz (Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2) — mineral

Raw Topaz

Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2

Diamond (Natural Diamond (Carbon, C)) — gemstone

Diamond

Natural Diamond (Carbon, C)

Quartz Pebble (Beach Agate / Chalcedony Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Beach Agate / Chalcedony Pebble)

Silicon Dioxide (SiO2)

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

Diamond (in jewelry)

Element Carbon (C)

Amethyst (Quartz (SiO2)) — mineral

Amethyst

Quartz (SiO2)

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

Diamond (Cut Gemstone)

Carbon (C)

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

Amethyst

Silicon Dioxide (SiO2 with iron impurities)

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

Amethyst (Raw Quartz)

Silicon Dioxide (SiO2) with iron impurities

Diamond (or Simulant) (Carbon (C) or Cubic Zirconia (ZrO2)) — gemstone

Diamond (or Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

Tumbled blue-gray stone, likely sodalite or dumortierite quartz (Most plausibly sodalite (Na₈Al₆Si₆O₂₄Cl₂); identification is uncertain from the image) — mineral

Tumbled blue-gray stone, likely sodalite or dumortierite quartz

Most plausibly sodalite (Na₈Al₆Si₆O₂₄Cl₂); identification is uncertain from the image

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

Diamond (or Diamond Simulant)

Carbon (C)

Peacock Ore (Bornite (Cu5FeS4) or Chalcopyrite treated with acid) — mineral

Peacock Ore

Bornite (Cu5FeS4) or Chalcopyrite treated with acid

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Diamond (Native Carbon (C)) — gemstone

Diamond

Native Carbon (C)

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

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

Amethyst

Silicon Dioxide (SiO2), Quartz variety

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

Smoky Quartz

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Dyed Pink Quartzite (Tumbled and Dyed Quartzite (SiO2 with dye treatment)) — metamorphic

Dyed Pink Quartzite

Tumbled and Dyed Quartzite (SiO2 with dye treatment)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Orange Calcite / Quartzite with Iron Staining (Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) with Iron Oxide impurities) — mineral

Orange Calcite / Quartzite with Iron Staining

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3) with Iron Oxide impurities

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

River Cobble (Clastic Sedimentary (Quartz-rich Cobble)) — sedimentary

River Cobble

Clastic Sedimentary (Quartz-rich Cobble)

Swiss Blue Topaz (Al2SiO4(F,OH)2) — gemstone

Swiss Blue Topaz

Al2SiO4(F,OH)2

Sandstone (Quartz Sandstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (Quartz Sandstone)

Arenite (SiO2 based)