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

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline quartz (SiO2)

Rose Quartz (Dyed) (Silicon Dioxide (SiO2) with trace impurities) — mineral

Rose Quartz (Dyed)

Silicon Dioxide (SiO2) with trace impurities

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

Chert / Flint

Microcrystalline Quartz (SiO2)

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

Yellow Quartz

SiO2 (Crystalline Silicon Dioxide)

Quartzite (with Mica / Quartzite Schist) (SiO2 (Silica) with minor Muscovite Mica KAl2(AlSi3O10)(OH)2) — metamorphic

Quartzite (with Mica / Quartzite Schist)

SiO2 (Silica) with minor Muscovite Mica KAl2(AlSi3O10)(OH)2

Red Jasper (Chert) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Amethyst (Water-Worn Pebble) (Silicon Dioxide (SiO2 with iron impurities)) — mineral

Amethyst (Water-Worn Pebble)

Silicon Dioxide (SiO2 with iron impurities)

Tektite (Indochinite) (Tektite (Natural silica glass)) — igneous

Tektite (Indochinite)

Tektite (Natural silica glass)

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

Diamond

Natural Diamond (Carbon, C)

Diamond jewelry (Diamond (crystalline carbon, C)) — gemstone

Diamond jewelry

Diamond (crystalline carbon, C)

Chert (potentially worked flint) (Cryptocrystalline microcrystalline quartz (SiO2)) — sedimentary

Chert (potentially worked flint)

Cryptocrystalline microcrystalline quartz (SiO2)

Chalcedony (Agate Pebble) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

Banded Chert / Cryptocrystalline Quartz (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert / Cryptocrystalline Quartz

Silicon Dioxide (SiO2)

Ferruginous Quartz (Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Hematite)) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Hematite)

Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Unidentified dark pebble (Unknown) — unknown

Unidentified dark pebble

Unknown

Diamond (Diamond (C)) — gemstone

Diamond

Diamond (C)

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

Diamond

Natural Diamond (Carbon, C)

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Jasper Pebble (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Jasper Pebble

Microcrystalline Quartz (Chalcedony), SiO2

Ferruginous Quartz (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions

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

Chert (Jasper)

Silicon Dioxide (SiO2)

Chert (specifically Yellow Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Yellow Jasper variety)

Silicon Dioxide (SiO2)

Onyx Agate (Brazilian Agate) (Silicon Dioxide (SiO2)) — mineral

Onyx Agate (Brazilian Agate)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Chalcedony (Agate nodule fragment) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate nodule fragment)

Silicon Dioxide (SiO2)

Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Red Jasper with Quartz (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper with Quartz

Silicon Dioxide (SiO2) with Hematite impurities

Red Jasper (with Quartz and Chert) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper (with Quartz and Chert)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Diamond (C) — gemstone

Diamond

C

Citrine (Heat-treated) (Silicon Dioxide (SiO2)) — mineral

Citrine (Heat-treated)

Silicon Dioxide (SiO2)

Tree Agate (Chalcedony (SiO2)) — gemstone

Tree Agate

Chalcedony (SiO2)

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

Amethyst Cluster

Silicon Dioxide with Iron impurities (SiO2)

Heart-shaped Jasper / Chert Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Heart-shaped Jasper / Chert Pebble

Microcrystalline Quartz (SiO2)

Flint / Chert Nodule (Microcrystalline quartz (SiO2)) — sedimentary

Flint / Chert Nodule

Microcrystalline quartz (SiO2)

Banded Jasper (Silicon Dioxide with Iron Oxide Inclusions (SiO2)) — sedimentary

Banded Jasper

Silicon Dioxide with Iron Oxide Inclusions (SiO2)

Mammoth Molar Fossil (Mammuthus primigenius (Tooth fragment)) — fossil

Mammoth Molar Fossil

Mammuthus primigenius (Tooth fragment)

Diamond (or Diamond Simulant) (Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)

Chert (River Pebble/Finger Stone) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (River Pebble/Finger Stone)

Microcrystalline quartz (SiO2)