Rock Identifier

Category

Man Made Material, Not A Natural Rock Or Mineral Specimen

Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.

Learn about Man Made Material, Not A Natural Rock Or Mineral Specimen in the encyclopedia

Emerald in Matrix

Emerald in Matrix

Aquamarine Matrix

Aquamarine Matrix

Halite

Dunite

Chalk

Claystone

Carbonatite

Tripolite

Dalmatian Jasper

Dalmatian Jasper

Rock Gypsum

Marl

Calc-Silicate Rock

Calc-Silicate Rock

Moss Agate / Chalcedony (Silicon Dioxide (SiO2)) — mineral

Moss Agate / Chalcedony

Silicon Dioxide (SiO2)

Shale (Fissile Mudstone (primarily composed of clay minerals and quartz)) — sedimentary

Shale

Fissile Mudstone (primarily composed of clay minerals and quartz)

Polished copper-bearing rock, likely cuprite-rich copper ore (Cuprite (Cu₂O) with native copper and iron-oxide matrix, probable) — mineral

Polished copper-bearing rock, likely cuprite-rich copper ore

Cuprite (Cu₂O) with native copper and iron-oxide matrix, probable

River Pebble (Siliceous rock fragment / Quartzite / Sandstone pebble) — sedimentary

River Pebble

Siliceous rock fragment / Quartzite / Sandstone pebble

Crackle Quartz (Dyed) (SiO2 (Silicon Dioxide) - Treated) — mineral

Crackle Quartz (Dyed)

SiO2 (Silicon Dioxide) - Treated

Quartz River Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz River Pebble

Quartz (Silicon Dioxide, SiO2)

Clear Quartz Crystal (Likely Golden Healer/Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal (Likely Golden Healer/Iron-Stained)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2) with host rock matrix) — mineral

Quartz Pebble

Silicon Dioxide (SiO2) with host rock matrix

Mixed rock and mineral collection (Mixed lithologies; likely quartz, feldspar, basalt, granite, chert, sandstone, and metamorphic rocks) — igneous, sedimentary, metamorphic, mineral

Mixed rock and mineral collection

Mixed lithologies; likely quartz, feldspar, basalt, granite, chert, sandstone, and metamorphic rocks

igneous, sedimentary, metamorphic, mineral

Quartz Pebble (with probable inclusions or staining) (Quartz (Silicon Dioxide - SiO2)) — mineral

Quartz Pebble (with probable inclusions or staining)

Quartz (Silicon Dioxide - SiO2)

Milky Quartz with Matrix (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Matrix

Silicon Dioxide (SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2 with Fe2O3)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3)

Greenschist (Greenschist (chlorite schist)) — metamorphic

Greenschist

Greenschist (chlorite schist)

Quartzite Pebble (with mineral veining) (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Pebble (with mineral veining)

Metamorphic Quartzite (SiO2)

Cardstock (Paper) (Cellulose (C6H10O5)n) — sedimentary (man-made)

Cardstock (Paper)

Cellulose (C6H10O5)n

sedimentary (man-made)

Slag Glass (Cullet) (Amorphous Silicon Dioxide (SiO2) with metal oxide colorants) — Anthropogenic (Man-made)

Slag Glass (Cullet)

Amorphous Silicon Dioxide (SiO2) with metal oxide colorants

Anthropogenic (Man-made)

Red Sandstone (Arenite with Hematite (Fe2O3)) — sedimentary

Red Sandstone

Arenite with Hematite (Fe2O3)

Diamond (C (Carbon)) — gemstone

Diamond

C (Carbon)

Red jasper (likely iron-rich chert) (Microcrystalline quartz (SiO₂), colored by hematite/goethite; possibly brecciated jasper) — sedimentary

Red jasper (likely iron-rich chert)

Microcrystalline quartz (SiO₂), colored by hematite/goethite; possibly brecciated jasper

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Pink granite (Granite; predominantly quartz, K-feldspar, plagioclase, and biotite/hornblende) — igneous

Pink granite

Granite; predominantly quartz, K-feldspar, plagioclase, and biotite/hornblende

Strawberry Quartz (or Pink Aventurine) (Quartz with Hematite/Goethite inclusions (SiO2)) — mineral

Strawberry Quartz (or Pink Aventurine)

Quartz with Hematite/Goethite inclusions (SiO2)

Ferruginous Sandstone (Gozzan) (Iron-rich clastic sedimentary rock with Limonite/Goethite) — sedimentary

Ferruginous Sandstone (Gozzan)

Iron-rich clastic sedimentary rock with Limonite/Goethite

Tumbled basalt (likely) (Basalt; primarily plagioclase feldspar, pyroxene, and commonly olivine) — igneous

Tumbled basalt (likely)

Basalt; primarily plagioclase feldspar, pyroxene, and commonly olivine

Porphyritic Rhyolite (Porphyritic Rhyolite (Felsic volcanic rock)) — igneous

Porphyritic Rhyolite

Porphyritic Rhyolite (Felsic volcanic rock)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Citrine Quartz (Macrocrystalline Quartz (SiO2)) — mineral

Citrine Quartz

Macrocrystalline Quartz (SiO2)

Tumbled brown agate or jasper (Microcrystalline quartz, SiO₂ (likely chalcedony/agate with iron oxides)) — mineral

Tumbled brown agate or jasper

Microcrystalline quartz, SiO₂ (likely chalcedony/agate with iron oxides)

Quartz-rich breccia or vein quartz with dark inclusions (Milky quartz (SiO₂), likely brecciated and cemented with iron oxides and dark mica/amphibole minerals) — igneous

Quartz-rich breccia or vein quartz with dark inclusions

Milky quartz (SiO₂), likely brecciated and cemented with iron oxides and dark mica/amphibole minerals

Weathered agate or chalcedony nodule (Microcrystalline quartz (SiO₂), likely agate/chalcedony with iron-oxide staining) — mineral

Weathered agate or chalcedony nodule

Microcrystalline quartz (SiO₂), likely agate/chalcedony with iron-oxide staining

Polished pink banded agate (Microcrystalline quartz (chalcedony), SiO₂) — mineral

Polished pink banded agate

Microcrystalline quartz (chalcedony), SiO₂

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Quartz Grain (Silicon Dioxide (SiO2)) — mineral

Quartz Grain

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities and natural irradiation) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities and natural irradiation

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Amethyst Gemstone (Crystalline Quartz (SiO2 with iron impurities)) — gemstone

Amethyst Gemstone

Crystalline Quartz (SiO2 with iron impurities)

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

Sandstone (likely Quartzose Sandstone)

Arenite (primarily SiO2)

Sandstone (Nut-stone / Cup-stone artifact) (Quartz Arenite / Worked Sedimentary Rock) — sedimentary

Sandstone (Nut-stone / Cup-stone artifact)

Quartz Arenite / Worked Sedimentary Rock

Sandstone (Banded) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2)

Cubic Zirconia (Faceted) (Zirconium dioxide (ZrO2)) — gemstone

Cubic Zirconia (Faceted)

Zirconium dioxide (ZrO2)

Iron-stained quartz-rich rock, likely granite or pegmatite fragment (Weathered granite/pegmatite; mainly quartz (SiO₂) with feldspar and iron-oxide staining) — igneous

Iron-stained quartz-rich rock, likely granite or pegmatite fragment

Weathered granite/pegmatite; mainly quartz (SiO₂) with feldspar and iron-oxide staining

Cinnabar in Quartz (Silicon Dioxide (Quartz, SiO2) with Mercury Sulfide inclusions (Cinnabar, HgS)) — mineral

Cinnabar in Quartz

Silicon Dioxide (Quartz, SiO2) with Mercury Sulfide inclusions (Cinnabar, HgS)