Rock Identifier

Category

Not A Natural Rock (Man Made Composite)

Browse not a natural rock (man made composite) specimens identified by the Rock Identifier community.

Learn about Not A Natural Rock (Man Made Composite) in the encyclopedia

Asphalt Rock

Rock Gypsum

Talc-carbonate Rock

Talc-carbonate Rock

Opalite

Chalk

Goldstone

Anorthosite

Albitite

Dunite

Gondite

Limestone

Coquina

Diamond (Diamond (Pure Carbon crystallization)) — gemstone

Diamond

Diamond (Pure Carbon crystallization)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

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

Tumbled Amethyst

Silicon Dioxide (SiO2) with iron impurities

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Quartzite (Quartzite (Metamorphosed Sandstone)) — metamorphic

Quartzite

Quartzite (Metamorphosed Sandstone)

Quartzite (Metamorphic Quartz Arenite) — metamorphic

Quartzite

Metamorphic Quartz Arenite

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Sunstone ((Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar) — mineral

Sunstone

(Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

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

Citrine Quartz (Raw)

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

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

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

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

Quartz (Variety: Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Flint / Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Flint / Chert Pebble

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

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

Chert (Jasper/Flint)

Silicon Dioxide (SiO2)

Dyed Agate (Silicon Dioxide with artificial pigment (SiO2)) — sedimentary

Dyed Agate

Silicon Dioxide with artificial pigment (SiO2)

Diamond (Diamond (pure carbon, C)) — mineral

Diamond

Diamond (pure carbon, C)

Emerald in Quartz Matrix (Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium) — gemstone

Emerald in Quartz Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Rainbow Quartz (Dyed/Coated Quartz) (Silicon Dioxide (SiO2) with artificial color enhancement) — gemstone

Rainbow Quartz (Dyed/Coated Quartz)

Silicon Dioxide (SiO2) with artificial color enhancement

Chert (Yellow Jasper/Flint pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper/Flint pebble)

Microcrystalline Quartz (SiO2)

Flint (Silicon dioxide (Microcrystalline Quartz / Chert)) — sedimentary

Flint

Silicon dioxide (Microcrystalline Quartz / Chert)

Blue chalcedony (likely dyed or polished) (Chalcedony, microcrystalline quartz (SiO₂)) — mineral

Blue chalcedony (likely dyed or polished)

Chalcedony, microcrystalline quartz (SiO₂)

Blue Sapphire (likely lab-grown or treated) (Corundum (Aluminum Oxide, Al2O3)) — gemstone

Blue Sapphire (likely lab-grown or treated)

Corundum (Aluminum Oxide, Al2O3)

Green Quartz (Prasiolite/Adventurine) (Silicon Dioxide (SiO2) with inclusions) — mineral

Green Quartz (Prasiolite/Adventurine)

Silicon Dioxide (SiO2) with inclusions

Sunstone (Aventurine Feldspar) ((Ca,Na)((Al,Si)2Si2O8) with inclusions of Cu or Fe2O3) — mineral

Sunstone (Aventurine Feldspar)

(Ca,Na)((Al,Si)2Si2O8) with inclusions of Cu or Fe2O3

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Citrine (likely Heat-Treated Amethyst) (Silicon Dioxide (SiO2)) — mineral

Citrine (likely Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

Rounded granitic gneiss pebble (Felsic orthogneiss, composed mainly of quartz, feldspar, and mica) — metamorphic

Rounded granitic gneiss pebble

Felsic orthogneiss, composed mainly of quartz, feldspar, and mica

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

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

Diamond (in a gold setting) (Carbon (C)) — mineral

Diamond (in a gold setting)

Carbon (C)

Turquoise (CuAl6(PO4)4(OH)8·4H2O (Hydrous copper aluminium phosphate)) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O (Hydrous copper aluminium phosphate)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Chert Arrowhead (Jasper) (Chert (Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert Arrowhead (Jasper)

Chert (Cryptocrystalline Quartz, SiO2)

Strawberry Quartz (Hematoid Quartz) (Silicon Dioxide with Hematite/Goethite inclusions (SiO2 + Fe2O3)) — mineral

Strawberry Quartz (Hematoid Quartz)

Silicon Dioxide with Hematite/Goethite inclusions (SiO2 + Fe2O3)

Dyed blue quartz or druzy geode (likely) (Quartz, silicon dioxide (SiO₂), probably artificially colored) — mineral

Dyed blue quartz or druzy geode (likely)

Quartz, silicon dioxide (SiO₂), probably artificially colored

Polished blue banded agate slice (Chalcedony (microcrystalline quartz), SiO₂, commonly with trace iron and other coloring elements) — mineral

Polished blue banded agate slice

Chalcedony (microcrystalline quartz), SiO₂, commonly with trace iron and other coloring elements