Rock Identifier

Category

Mineral With Artificial Coating

Browse mineral with artificial coating specimens identified by the Rock Identifier community.

Learn about Mineral With Artificial Coating in the encyclopedia

Black Shale

Sodalite

Serpentine

Pezzottaite

Galena

Blue Apatite

Tangerine Quartz

Tangerine Quartz

Shungite

Super Seven

Rock Salt

Anatase

Brookite

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

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

Diamond (in jewelry)

Cubic Carbon (C)

Fuchsite (Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)) — mineral

Fuchsite

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

Banded Quartz (Silicon Dioxide (SiO2)) — mineral

Banded Quartz

Silicon Dioxide (SiO2)

Peridot in Basalt (Olivine ((Mg, Fe)2SiO4) in Basalt) — mineral

Peridot in Basalt

Olivine ((Mg, Fe)2SiO4) in Basalt

Natural Pearl (appearing in a jewelry setting) (Calcium Carbonate (mostly Aragonite), CaCO3 with Conchiolin) — mineral

Natural Pearl (appearing in a jewelry setting)

Calcium Carbonate (mostly Aragonite), CaCO3 with Conchiolin

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Herkimer Diamond (Quartz (Silicon Dioxide, SiO2)) — mineral

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Amazonite (Microcline (KAlSi3O8) with lead impurities) — mineral

Amazonite

Microcline (KAlSi3O8) with lead impurities

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

Amethyst (Rough)

Silicon Dioxide with iron impurities (SiO2)

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Amethyst (Scepter/Double Terminated Point) (Silicon Dioxide (SiO2)) — mineral

Amethyst (Scepter/Double Terminated Point)

Silicon Dioxide (SiO2)

Azurite in Matrix (Azurite (Cu3(CO3)2(OH)2)) — mineral

Azurite in Matrix

Azurite (Cu3(CO3)2(OH)2)

Beryl (Aquamarine variety) (Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)) — mineral

Beryl (Aquamarine variety)

Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)

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

Amethyst

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

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Gold Flakes (Native Gold (Au)) — mineral

Gold Flakes

Native Gold (Au)

Rough Emerald (Emerald (Beryl), Be3Al2(SiO3)6) — mineral

Rough Emerald

Emerald (Beryl), Be3Al2(SiO3)6

Pearl (incorporated into jewelry) (Aragonite and Calcite (CaCO3)) — mineral

Pearl (incorporated into jewelry)

Aragonite and Calcite (CaCO3)

Pearl (Nacre (Aragonite and Conchiolin), CaCO3) — mineral

Pearl

Nacre (Aragonite and Conchiolin), CaCO3

Quartz Geode / Druzy Quartz Node (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode / Druzy Quartz Node

Silicon Dioxide (SiO2)

Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Man-made Synthetic Material (Costume Faux Fur) (Synthetic Polymer (Polyester/Acrylic)) — not a rock

Man-made Synthetic Material (Costume Faux Fur)

Synthetic Polymer (Polyester/Acrylic)

Biotite Schist (Biotite Schist (containing K(Mg,Fe)3AlSi3O10(OH)2)) — metamorphic

Biotite Schist

Biotite Schist (containing K(Mg,Fe)3AlSi3O10(OH)2)

Gray River Pebble (likely Limestone or Siltstone) (Sedimentary Rock (Calcium Carbonate or Siliciclastic)) — sedimentary

Gray River Pebble (likely Limestone or Siltstone)

Sedimentary Rock (Calcium Carbonate or Siliciclastic)

Sandstone (Banded) (Arenite with Iron Oxide Banding) — sedimentary

Sandstone (Banded)

Arenite with Iron Oxide Banding

Shiva Lingam (Cryptocrystalline Quartz (Jasper/Agate)) — sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasper/Agate)

Sandstone with Iron Banding (Arenite with Hematite or Limonite staining (SiO2 with Fe2O3)) — sedimentary

Sandstone with Iron Banding

Arenite with Hematite or Limonite staining (SiO2 with Fe2O3)

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Satin Spar (Gypsum) (Calcium Sulfate Dihydrate (CaSO4·2H2O)) — mineral

Satin Spar (Gypsum)

Calcium Sulfate Dihydrate (CaSO4·2H2O)

Amethyst Geode (Amethyst/Purple Quartz (SiO2)) — mineral

Amethyst Geode

Amethyst/Purple Quartz (SiO2)

Calcite on Limestone (or Fossil) (Calcium Carbonate (CaCO3)) — sedimentary

Calcite on Limestone (or Fossil)

Calcium Carbonate (CaCO3)

Mica Schist (Schist (Biotite/Muscovite rich)) — metamorphic

Mica Schist

Schist (Biotite/Muscovite rich)

Gold Nugget / Gold-bearing Quartz (Native Gold (Au)) — mineral

Gold Nugget / Gold-bearing Quartz

Native Gold (Au)

Sandstone (with man-made markings) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Biotite Schist (Biotite Gneiss/Schist (approximate formula K(Mg,Fe)3AlSi3O10(OH)2)) — metamorphic

Biotite Schist

Biotite Gneiss/Schist (approximate formula K(Mg,Fe)3AlSi3O10(OH)2)

Quartz Geode in Sedimentary Host Rock (Silicon Dioxide (SiO2) in Carbonate Matrix) — sedimentary

Quartz Geode in Sedimentary Host Rock

Silicon Dioxide (SiO2) in Carbonate Matrix

Sandstone (Arenite (SiO2 with various cementing agents)) — sedimentary

Sandstone

Arenite (SiO2 with various cementing agents)

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

Chert / Flint

Microcrystalline Quartz (SiO2)

Quartz with Iron Oxide (SiO2) — mineral

Quartz with Iron Oxide

SiO2

Tumbled Stones Collection (Tiger's Eye, Snowflake Obsidian, Aventurine, etc.) (Silica minerals (primarily SiO2)) — mineral

Tumbled Stones Collection (Tiger's Eye, Snowflake Obsidian, Aventurine, etc.)

Silica minerals (primarily SiO2)