Rock Identifier

Category

Sedimentary (Primary) With Artificial Modification

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

Learn about Sedimentary (Primary) With Artificial Modification in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Priday Plume Agate

Coal

Kambaba Jasper

Limestone

Asphalt Rock

Claystone

Mudstone

Sapropel

Quartz (Citrine variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine variety)

Silicon Dioxide (SiO2)

Blue Obsidian (Cullet Glass) (Silicon Dioxide (Amorphous Glass)) — mineral

Blue Obsidian (Cullet Glass)

Silicon Dioxide (Amorphous Glass)

Rounded granitic gneiss or granite cobble (Biotite granite, possibly weakly foliated granitic gneiss; quartz–feldspar–biotite assemblage) — igneous

Rounded granitic gneiss or granite cobble

Biotite granite, possibly weakly foliated granitic gneiss; quartz–feldspar–biotite assemblage

Smoky quartz (likely) (Quartz, silicon dioxide (SiO₂), naturally irradiated variety) — mineral

Smoky quartz (likely)

Quartz, silicon dioxide (SiO₂), naturally irradiated variety

Vesicular volcanic scoria (likely weathered basaltic scoria) (Scoria; chiefly vesicular basalt, composed mainly of plagioclase, pyroxene, and iron-rich glass) — igneous

Vesicular volcanic scoria (likely weathered basaltic scoria)

Scoria; chiefly vesicular basalt, composed mainly of plagioclase, pyroxene, and iron-rich glass

Hag Stone (Quartz Pebble with Natural Hole) (Quartz (Silicon Dioxide - SiO2)) — mineral

Hag Stone (Quartz Pebble with Natural Hole)

Quartz (Silicon Dioxide - SiO2)

Coal (Combustible sedimentary rock) — sedimentary

Coal

Combustible sedimentary rock

Painted River Rock (likely Quartzite or Granite) (Quartzite or Granitic Gneiss (painted)) — metamorphic

Painted River Rock (likely Quartzite or Granite)

Quartzite or Granitic Gneiss (painted)

Chalcopyrite (Copper Iron Sulfide (CuFeS2)) — mineral

Chalcopyrite

Copper Iron Sulfide (CuFeS2)

Bismuth crystal (Bismuth (Bi), artificially crystallized) — mineral

Bismuth crystal

Bismuth (Bi), artificially crystallized

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Polished black stone, likely black jasper or basalt (Most likely microcrystalline quartz (black jasper/chert), SiO₂; basalt is a plausible alternative) — mineral

Polished black stone, likely black jasper or basalt

Most likely microcrystalline quartz (black jasper/chert), SiO₂; basalt is a plausible alternative

Quartz Crystal Rock (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Rock

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

White Quartz Sphere (Silicon Dioxide (SiO2)) — mineral

White Quartz Sphere

Silicon Dioxide (SiO2)

Polished black stone, possibly basalt or black obsidian (Likely fine-grained basalt (plagioclase and pyroxene) or volcanic glass (obsidian; rhyolitic composition)) — igneous

Polished black stone, possibly basalt or black obsidian

Likely fine-grained basalt (plagioclase and pyroxene) or volcanic glass (obsidian; rhyolitic composition)

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

Blue Topaz

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

Dyed Alum or Dyed Quartz (Ornamental Crystal) (Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]) — mineral

Dyed Alum or Dyed Quartz (Ornamental Crystal)

Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Lava Rock (Dyed) (Basalt / Volcanic scoria) — igneous

Lava Rock (Dyed)

Basalt / Volcanic scoria

Dyed Agate Geode (Pink/Magenta) (Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz) — mineral

Dyed Agate Geode (Pink/Magenta)

Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Mixed sandstone and iron-rich sedimentary rock fragments (Quartz arenite/subarkose, with ferruginous cement and possible iron-oxide staining) — sedimentary

Mixed sandstone and iron-rich sedimentary rock fragments

Quartz arenite/subarkose, with ferruginous cement and possible iron-oxide staining

Dyed Quartzite (Pink/Magenta) (Silicon Dioxide (SiO2) - Artificially Colored Quartzite) — mineral

Dyed Quartzite (Pink/Magenta)

Silicon Dioxide (SiO2) - Artificially Colored Quartzite

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Feldspar (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)) — mineral

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Quartz (Milky/Snow) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Snow)

Silicon Dioxide (SiO2)

Dyed mineral cluster, likely calcite or aragonite (Calcite (CaCO₃) or aragonite (CaCO₃), artificially color-enhanced) — mineral

Dyed mineral cluster, likely calcite or aragonite

Calcite (CaCO₃) or aragonite (CaCO₃), artificially color-enhanced

Red Tiger's Eye (Pseudomorph of Macrocrystalline Quartz after Crocidolite (SiO2)) — metamorphic

Red Tiger's Eye

Pseudomorph of Macrocrystalline Quartz after Crocidolite (SiO2)

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sea Glass (Amorphous silicon dioxide (glass)) — mineral

Sea Glass

Amorphous silicon dioxide (glass)

Turquoise (Turquoise (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Native American Hammerstone / Pitted Stone (Modified lithic artifact (often quartzite, basalt, or granite)) — artifact / sedimentary or igneous rock

Native American Hammerstone / Pitted Stone

Modified lithic artifact (often quartzite, basalt, or granite)

artifact / sedimentary or igneous rock

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

Peridot (Olivine)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Blue Aura Quartz (Silicon Dioxide (SiO2) with metallic vapor coating) — mineral

Blue Aura Quartz

Silicon Dioxide (SiO2) with metallic vapor coating

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Carnelian Agate (SiO2 (Silicon Dioxide - Chalcedony variant)) — gemstone

Carnelian Agate

SiO2 (Silicon Dioxide - Chalcedony variant)

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

Purple Agate (Dyed Chalcedony)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Smoky Quartz (Smoky Quartz (SiO2)) — mineral

Smoky Quartz

Smoky Quartz (SiO2)