Rock Identifier

Category

Synthetic Polymer (Synthetic Material)

Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.

Learn about Synthetic Polymer (Synthetic Material) in the encyclopedia

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Zincite

Opalite

Lead Feldspar

Peat

Zircon

Dunite

Limonite

Shell Opal

Madagascar Opal

Lavender Obsidian

Electric Blue Obsidian

Sandstone (Red/Brown Sandstone pebble) (Arenite (SiO2 dominated sandstone)) — sedimentary

Sandstone (Red/Brown Sandstone pebble)

Arenite (SiO2 dominated sandstone)

Fossil Coral (Petoskey Stone or Chain Coral Pebble) (Hexagonaria percarinata / Rugosa coral (CaCO3)) — fossil

Fossil Coral (Petoskey Stone or Chain Coral Pebble)

Hexagonaria percarinata / Rugosa coral (CaCO3)

Unakite (Altered Granite (Epidotized Granite)) — metamorphic

Unakite

Altered Granite (Epidotized Granite)

River cobble (Greywacke/Sandstone) (Sandstone / Greywacke) — sedimentary

River cobble (Greywacke/Sandstone)

Sandstone / Greywacke

Unakite (Metamorphosed Granite (Orthoclase, Epidote, Quartz)) — metamorphic

Unakite

Metamorphosed Granite (Orthoclase, Epidote, Quartz)

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Sandstone (Ferruginous) (Arenite (with Iron Oxide cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

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

Quartzite (Ferruginous Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Granite (Phaneritic plutonic rock (dominated by Quartz and Feldspar)) — igneous

Granite

Phaneritic plutonic rock (dominated by Quartz and Feldspar)

Jasper River Stone (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Jasper River Stone

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Siltstone (Siltstone (primarily composed of quartz and clay minerals)) — sedimentary

Siltstone

Siltstone (primarily composed of quartz and clay minerals)

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

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Conglomerate (Clastic Sedimentary Rock (Conglomerate)) — sedimentary

Conglomerate

Clastic Sedimentary Rock (Conglomerate)

Glauconitic Sandstone (Glauconitic Sandstone (Greensand)) — sedimentary

Glauconitic Sandstone

Glauconitic Sandstone (Greensand)

Yellow Jasper (Silicon Dioxide (SiO2) with iron hydroxides) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron hydroxides

Honeycomb Coral Fossil (Favosites) (Favosites (Order Tabulata)) — fossil

Honeycomb Coral Fossil (Favosites)

Favosites (Order Tabulata)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone (lithic wake or graywacke) (Clastic sedimentary rock (primarily quartz and lithic fragments)) — sedimentary

Sandstone (lithic wake or graywacke)

Clastic sedimentary rock (primarily quartz and lithic fragments)

Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Sandstone (Sandstone ( преимущественно SiO2 )) — sedimentary

Sandstone

Sandstone ( преимущественно SiO2 )

Red Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Red Quartzite

Metamorphic Quartzite (SiO2)

Vesicular Basalt (Lava Rock) (Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)) — igneous

Vesicular Basalt (Lava Rock)

Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)

Red Scoria (Lava Rock) (Vesicular Basalt / Scoria) — igneous

Red Scoria (Lava Rock)

Vesicular Basalt / Scoria

Sandstone Pebble (Arenite (SiO2 complex)) — sedimentary

Sandstone Pebble

Arenite (SiO2 complex)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Sandstone (Arenite (compositionally various, primarily SiO2)) — sedimentary

Sandstone

Arenite (compositionally various, primarily SiO2)

Conglomerate (Conglomerate (SiO2, CaCO3 dominant)) — sedimentary

Conglomerate

Conglomerate (SiO2, CaCO3 dominant)

Fuchsite in Quartz (Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartz (SiO2)) — metamorphic

Fuchsite in Quartz

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartz (SiO2)

Blue Topaz (Al2SiO4(F,OH)2 (Aluminum silicate fluoride hydroxide)) — gemstone

Blue Topaz

Al2SiO4(F,OH)2 (Aluminum silicate fluoride hydroxide)

Siltstone with Sandstone Bands (Siltstone (composed of Quartz and Clay minerals)) — sedimentary

Siltstone with Sandstone Bands

Siltstone (composed of Quartz and Clay minerals)

Red Jasper (Microcrystalline Quartz (SiO2 with Iron Oxide impurities)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2 with Iron Oxide impurities)

Granite Pebble (Granite (Felsic Plutonic Rock)) — igneous

Granite Pebble

Granite (Felsic Plutonic Rock)

Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

Sandstone Pebble (River Rock) (Arenite (primarily SiO2)) — sedimentary

Sandstone Pebble (River Rock)

Arenite (primarily SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Quartz (Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Greywacke (Sandstone) (Lithic wacke) — sedimentary

Greywacke (Sandstone)

Lithic wacke