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

Galena

Pezzottaite

Serpentine

Blue Apatite

Tangerine Quartz

Tangerine Quartz

Shungite

Super Seven

Rock Salt

Anatase

Brookite

Dyed Quartz Geode (Dyed crystalline quartz (Silicon Dioxide, SiO2)) — mineral

Dyed Quartz Geode

Dyed crystalline quartz (Silicon Dioxide, SiO2)

Dyed Purple Agate (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Dyed Purple Agate

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

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

Dyed Pink Quartzite

Tumbled and Dyed Quartzite (SiO2 with dye treatment)

Bismuth Crystal (Bismuth (Bi)) — mineral

Bismuth Crystal

Bismuth (Bi)

Dyed Agate Geode Slice (Silicon Dioxide (SiO2) - Banded Chalcedony) — mineral

Dyed Agate Geode Slice

Silicon Dioxide (SiO2) - Banded Chalcedony

Druzzy Quartz on Matrix (Silicon Dioxide (SiO2)) — mineral

Druzzy Quartz on Matrix

Silicon Dioxide (SiO2)

Dyed Howlite (Borosilicate hydroxide (Ca2B5SiO9(OH)5)) — mineral

Dyed Howlite

Borosilicate hydroxide (Ca2B5SiO9(OH)5)

Carnelian Agate (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Red Dyed Howlite (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Red Dyed Howlite

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Blue Howlite (Dyed) (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Druzy Quartz on Ironstone (Silicon Dioxide (SiO2) on Limonitic Ironstone) — mineral

Druzy Quartz on Ironstone

Silicon Dioxide (SiO2) on Limonitic Ironstone

Red Tiger's Eye (Pseudomorph of Quartz after Crocidolite (Silicon Dioxide: SiO2)) — gemstone

Red Tiger's Eye

Pseudomorph of Quartz after Crocidolite (Silicon Dioxide: SiO2)

Blue Howlite (Dyed) (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Dyed Blue Agate (Silicon Dioxide (SiO2)) — Mineral

Dyed Blue Agate

Silicon Dioxide (SiO2)

Blue Banded Agate (Dyed) (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Blue Banded Agate (Dyed)

Silicon Dioxide (SiO2) - Chalcedony variety

Pale blue-gray quartz-rich pebble (tentative) (Quartz, SiO₂, possibly chalcedony or a weathered metamorphic fragment) — mineral

Pale blue-gray quartz-rich pebble (tentative)

Quartz, SiO₂, possibly chalcedony or a weathered metamorphic fragment

Quartz (Druzy) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy)

Silicon Dioxide (SiO2)

Chert (with Quartz vein/coating) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Quartz vein/coating)

Microcrystalline Quartz (SiO2)

Pink Anthracite Coal (dyed) (Anthracite Coal (Artificially Colored)) — Sedimentary Rock (Altered)

Pink Anthracite Coal (dyed)

Anthracite Coal (Artificially Colored)

Sedimentary Rock (Altered)

Druzy quartz in agate/geode (Quartz (SiO₂), microcrystalline chalcedony host) — mineral

Druzy quartz in agate/geode

Quartz (SiO₂), microcrystalline chalcedony host

Uncertain fine-grained rock or mineral-bearing specimen (Indeterminate; possible quartz- or feldspar-bearing matrix with reflective grains) — mineral

Uncertain fine-grained rock or mineral-bearing specimen

Indeterminate; possible quartz- or feldspar-bearing matrix with reflective grains

Clear Quartz (Milky Quartz pebble) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Milky Quartz pebble)

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Olivine (Peridot) (Olivine Group (Magnesium Iron Silicate), (Mg, Fe)2SiO4) — mineral

Olivine (Peridot)

Olivine Group (Magnesium Iron Silicate), (Mg, Fe)2SiO4

Dyed pink stone, likely rhodonite or dyed howlite/magnesite (Rhodonite: MnSiO₃; possible howlite: Ca₂B₅SiO₉(OH)₅) — mineral

Dyed pink stone, likely rhodonite or dyed howlite/magnesite

Rhodonite: MnSiO₃; possible howlite: Ca₂B₅SiO₉(OH)₅

Druzy Quartz on Chert/Chalcedony (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Chert/Chalcedony

Silicon Dioxide (SiO2)

Tumbled blue-green chalcedony (likely dyed agate or chrysoprase) (Microcrystalline quartz, SiO₂; chalcedony/agate variety) — mineral

Tumbled blue-green chalcedony (likely dyed agate or chrysoprase)

Microcrystalline quartz, SiO₂; chalcedony/agate variety

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Mixed rock and mineral collection (Multiple specimens; visible pieces may include quartz, calcite, agate/chalcedony, jasper, and dyed or coated materials) — mineral

Mixed rock and mineral collection

Multiple specimens; visible pieces may include quartz, calcite, agate/chalcedony, jasper, and dyed or coated materials

Sandstone with Mineral Veining or Crust (Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)) — sedimentary

Sandstone with Mineral Veining or Crust

Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)

Quartz (Druzy on Matrix) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy on Matrix)

Silicon Dioxide (SiO2)

Dyed Agate Slice (Chalcedony (Silicon Dioxide, SiO2) with artificial pigment) — mineral

Dyed Agate Slice

Chalcedony (Silicon Dioxide, SiO2) with artificial pigment

Dyed Crackle Quartz (Green) (Quenching-treated Quartz (Silicon Dioxide, SiO2)) — mineral

Dyed Crackle Quartz (Green)

Quenching-treated Quartz (Silicon Dioxide, SiO2)

Dragon Vein Agate (Dyed/Treated) (Agate (SiO2)) — mineral

Dragon Vein Agate (Dyed/Treated)

Agate (SiO2)

Purple Dyed Agate Geode (Banded Chalcedony) (Silicon Dioxide (SiO2) - variety: Agate) — mineral

Purple Dyed Agate Geode (Banded Chalcedony)

Silicon Dioxide (SiO2) - variety: Agate

Blue-dyed howlite beads (likely) (Howlite, Ca₂B₅SiO₉(OH)₅, commonly dyed blue to imitate turquoise) — mineral

Blue-dyed howlite beads (likely)

Howlite, Ca₂B₅SiO₉(OH)₅, commonly dyed blue to imitate turquoise

Dyed Agate (SiO2 (Silicon Dioxide)) — mineral

Dyed Agate

SiO2 (Silicon Dioxide)

Dyed Agate (Chalcedony (SiO2 with impurities)) — mineral

Dyed Agate

Chalcedony (SiO2 with impurities)

Graphite (Graphite (Carbon, C)) — Mineral

Graphite

Graphite (Carbon, C)

Druzy Quartz on Matrix (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Matrix

Silicon Dioxide (SiO2)

Tooth or shell fragment (likely fossilized marine material) (Indeterminate; possibly a fossil fish tooth or mollusk shell fragment composed mainly of calcium carbonate (CaCO₃)) — fossil

Tooth or shell fragment (likely fossilized marine material)

Indeterminate; possibly a fossil fish tooth or mollusk shell fragment composed mainly of calcium carbonate (CaCO₃)