Rock Identifier

Category

Sedimentary (Artificial)

Browse sedimentary (artificial) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Artificial) in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Coal

Kambaba Jasper

Limestone

Asphalt Rock

Claystone

Mudstone

Sapropel

Bituminous Shale

Bituminous Shale

Concrete Paver (Artificial Cementitious Rock) (Hydrated Portland Cement Aggregate) — Sedimentary (Synthetic)

Concrete Paver (Artificial Cementitious Rock)

Hydrated Portland Cement Aggregate

Sedimentary (Synthetic)

Pink Satin Spar (Satin Spar Selenite Dyed) (Gypsum (CaSO4·2H2O)) — mineral

Pink Satin Spar (Satin Spar Selenite Dyed)

Gypsum (CaSO4·2H2O)

Blue Agate (Dyed Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Blue Agate (Dyed Chalcedony)

Silicon Dioxide (SiO2)

Bismuth (Native Bismuth (Bi)) — mineral

Bismuth

Native Bismuth (Bi)

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)

Peacock ore (iridescent bornite/chalcopyrite) (Bornite (Cu₅FeS₄), commonly sold as heat-treated chalcopyrite (CuFeS₂)) — mineral

Peacock ore (iridescent bornite/chalcopyrite)

Bornite (Cu₅FeS₄), commonly sold as heat-treated chalcopyrite (CuFeS₂)

Prasiolite (Silicon Dioxide (SiO2)) — mineral

Prasiolite

Silicon Dioxide (SiO2)

Blue Quartzite (Dyed) (Silicon Dioxide (SiO2) with inclusions) — metamorphic

Blue Quartzite (Dyed)

Silicon Dioxide (SiO2) with inclusions

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

Amethyst (Cabochon)

Silicon Dioxide (SiO2) with iron impurities

Rough Quartz (var. Citrine or Yellow Quartz) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (var. Citrine or Yellow Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Faceted) (Silicon dioxide (SiO2)) — gemstone

Clear Quartz (Faceted)

Silicon dioxide (SiO2)

Unidentified polished dark stone with a possible quartz fragment (Indeterminate; appearance may reflect polished basalt, obsidian, or iron-rich rock, with a pale quartz/feldspar inclusion) — mineral

Unidentified polished dark stone with a possible quartz fragment

Indeterminate; appearance may reflect polished basalt, obsidian, or iron-rich rock, with a pale quartz/feldspar inclusion

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

Peridot

Olivine (Mg, Fe)2SiO4

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Dyed Agate (Chalcedony (SiO2)) — Mineral

Dyed Agate

Chalcedony (SiO2)

Dyed Agate (Silicon dioxide, SiO2) — Mineral (Chalcedony)

Dyed Agate

Silicon dioxide, SiO2

Mineral (Chalcedony)

Dyed Agate (SiO2 (Silicon Dioxide)) — mineral

Dyed Agate

SiO2 (Silicon Dioxide)

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

Dyed Purple Agate

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Smoky Quartz (Silicon Dioxide (SiO2) with natural radiation treatment) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with natural radiation treatment

Smoky Quartz (Silicon dioxide (SiO2)) — mineral

Smoky Quartz

Silicon dioxide (SiO2)

Dyed or color-enhanced agate/microcrystalline quartz bead (Chalcedony (microcrystalline SiO₂), likely agate) — gemstone

Dyed or color-enhanced agate/microcrystalline quartz bead

Chalcedony (microcrystalline SiO₂), likely agate

Dyed Quartzite (Metamorphosed Quartz (SiO2) with synthetic pigment) — metamorphic

Dyed Quartzite

Metamorphosed Quartz (SiO2) with synthetic pigment

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

Peridot

Olivine ((Mg, Fe)2SiO4)

Silicon Carbide (Carborundum) (Moissanite (SiC), though mostly synthetic) — mineral

Silicon Carbide (Carborundum)

Moissanite (SiC), though mostly synthetic

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

Blue Banded Agate (Dyed)

Silicon Dioxide (SiO2) - Chalcedony variety

Iron Slag (Anthropogenic Vitreous Silicate (Byproduct of Smelting)) — Mineral-like byproduct

Iron Slag

Anthropogenic Vitreous Silicate (Byproduct of Smelting)

Mineral-like byproduct

Blue Banded Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Blue Banded Agate

Chalcedony (Silicon Dioxide, SiO2)

Dyed Agate (Silicon Dioxide (SiO2) with synthetic dyes) — mineral

Dyed Agate

Silicon Dioxide (SiO2) with synthetic dyes

Tumbled turquoise-colored agate or chalcedony (Cryptocrystalline quartz (SiO₂), possibly dyed chalcedony; exact identification requires testing) — gemstone

Tumbled turquoise-colored agate or chalcedony

Cryptocrystalline quartz (SiO₂), possibly dyed chalcedony; exact identification requires testing

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

Dyed Agate Geode Slice

Silicon Dioxide (SiO2) - Banded Chalcedony

Dyed Blue Agate Slice (Silicon Dioxide (Chalcedony variety), $SiO_2$) — gemstone

Dyed Blue Agate Slice

Silicon Dioxide (Chalcedony variety), $SiO_2$

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

Red Tiger's Eye

SiO2 (Silicon Dioxide) - Pseudomorph of Quartz after Crocidolite

Tumbled orbicular granite (Orbicular granite, composed mainly of quartz, feldspar, and mica/amphibole) — igneous

Tumbled orbicular granite

Orbicular granite, composed mainly of quartz, feldspar, and mica/amphibole

Obsidian (likely snowflake-free black volcanic glass) (Volcanic glass; predominantly rhyolitic silica melt (SiO₂-rich, noncrystalline)) — igneous

Obsidian (likely snowflake-free black volcanic glass)

Volcanic glass; predominantly rhyolitic silica melt (SiO₂-rich, noncrystalline)

Dyed Coral (Calcium carbonate (CaCO3) - Calcite or Aragonite with dye) — organic gemstone

Dyed Coral

Calcium carbonate (CaCO3) - Calcite or Aragonite with dye

organic gemstone

Bismuth Crystal (Bismuth (Bi)) — mineral

Bismuth Crystal

Bismuth (Bi)

Dyed Agate (SiO2) — Mineral

Dyed Agate

SiO2

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

Dyed Agate

Agate (Silicon Dioxide, SiO2)

Dyed Agate (Tumbled) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Dyed Agate (Tumbled)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Tumbled quartz-rich pebble (Likely quartz-bearing chert or jasper; primarily microcrystalline SiO₂) — mineral

Tumbled quartz-rich pebble

Likely quartz-bearing chert or jasper; primarily microcrystalline SiO₂

Blue Crackle Quartz (Dyed Fire Agate/Quartz) (Silicon Dioxide (SiO2) with artificial dye treatment) — mineral

Blue Crackle Quartz (Dyed Fire Agate/Quartz)

Silicon Dioxide (SiO2) with artificial dye treatment

Green agate/geode slab (Cryptocrystalline quartz (chalcedony), SiO₂, likely agate with druzy quartz) — mineral

Green agate/geode slab

Cryptocrystalline quartz (chalcedony), SiO₂, likely agate with druzy quartz