Rock Identifier

Category

Man Made Object (Simulant)

Browse man made object (simulant) specimens identified by the Rock Identifier community.

Learn about Man Made Object (Simulant) in the encyclopedia

Opalite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Goldstone

Map Jasper

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Transvaal Jade

Marl

Dunite

Coquina

Chert (varieties include Flint and Jasper) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Amethyst (Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2 + Fe4+ impurities)

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Tumbled red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides) — mineral

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Rose quartz (Quartz (silicon dioxide, SiO₂), pink massive variety) — mineral

Rose quartz

Quartz (silicon dioxide, SiO₂), pink massive variety

Polished green aventurine (probable) (Quartz, SiO₂, with green fuchsite or chlorite inclusions) — mineral

Polished green aventurine (probable)

Quartz, SiO₂, with green fuchsite or chlorite inclusions

Tumbled brown chalcedony (possibly carnelian or jasper) (Microcrystalline quartz, SiO₂; likely iron-stained chalcedony) — mineral

Tumbled brown chalcedony (possibly carnelian or jasper)

Microcrystalline quartz, SiO₂; likely iron-stained chalcedony

Milky quartz (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz

Quartz, silicon dioxide (SiO₂)

Polished red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides.) — mineral

Polished red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides.

Carnelian (red chalcedony) (Chalcedony, microcrystalline quartz (SiO₂), iron-oxide colored) — gemstone

Carnelian (red chalcedony)

Chalcedony, microcrystalline quartz (SiO₂), iron-oxide colored

Red jasper (likely hematite-rich jasper) (Microcrystalline quartz (SiO₂) with iron oxides, chiefly hematite (Fe₂O₃)) — mineral

Red jasper (likely hematite-rich jasper)

Microcrystalline quartz (SiO₂) with iron oxides, chiefly hematite (Fe₂O₃)

Brown chalcedony (likely carnelian/iron-stained quartz) (Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides) — mineral

Brown chalcedony (likely carnelian/iron-stained quartz)

Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides

Tumbled zebra stone, likely zebra marble or banded calcite (Zebra marble (recrystallized calcite, CaCO₃), possibly black-and-white banded calcite) — metamorphic

Tumbled zebra stone, likely zebra marble or banded calcite

Zebra marble (recrystallized calcite, CaCO₃), possibly black-and-white banded calcite

Polished labradorite cabochon (Labradorite, a calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈) — mineral

Polished labradorite cabochon

Labradorite, a calcium-rich plagioclase feldspar; approximately (Ca,Na)(Al,Si)₄O₈

Polished agate (likely fire agate or carnelian-bearing agate) (Microcrystalline quartz, SiO₂; chalcedony with iron-oxide inclusions) — gemstone

Polished agate (likely fire agate or carnelian-bearing agate)

Microcrystalline quartz, SiO₂; chalcedony with iron-oxide inclusions

Carnelian (orange chalcedony) (Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety) — gemstone

Carnelian (orange chalcedony)

Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety

Green aventurine quartz sphere (Quartz, SiO₂, with fuchsite or other green mica inclusions) — mineral

Green aventurine quartz sphere

Quartz, SiO₂, with fuchsite or other green mica inclusions

Brecciated agate/chalcedony (Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz and iron-oxide inclusions) — mineral

Brecciated agate/chalcedony

Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz and iron-oxide inclusions

Orange chalcedony (likely carnelian), polished shard (Microcrystalline quartz, SiO₂; chalcedony variety, orange iron-oxide coloration) — gemstone

Orange chalcedony (likely carnelian), polished shard

Microcrystalline quartz, SiO₂; chalcedony variety, orange iron-oxide coloration

Polished jasper pebble (Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities) — metamorphic

Polished jasper pebble

Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

Polished yellow-orange chalcedony (likely carnelian) (Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety commonly called carnelian) — gemstone

Polished yellow-orange chalcedony (likely carnelian)

Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety commonly called carnelian

Petrified Wood (Silicified wood (Quartz, SiO2)) — fossil

Petrified Wood

Silicified wood (Quartz, SiO2)

Jadeite Ring (Jadeite (NaAlSi2O6)) — gemstone

Jadeite Ring

Jadeite (NaAlSi2O6)

Petrified Wood (Silicified Wood (primarily quartz/chalcedony replacing organic wood structure, SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily quartz/chalcedony replacing organic wood structure, SiO2)

Porphyry (Porphyritic Igneous Rock) — igneous

Porphyry

Porphyritic Igneous Rock

Agate (Silicon dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon dioxide (Chalcedony), SiO2

Red Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Larvikite (Monzonite / Anorthosite (Igneous Rock)) — igneous

Larvikite

Monzonite / Anorthosite (Igneous Rock)

Green Aventurine (Quartz with fuchsite inclusions (SiO2)) — mineral

Green Aventurine

Quartz with fuchsite inclusions (SiO2)

Lepidolite (K(Li,Al)3(Al,Si,3O10)(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,3O10)(F,OH)2

Red Jasper (Silicon Dioxide with iron impurities (Quartz variety, SiO2)) — sedimentary

Red Jasper

Silicon Dioxide with iron impurities (Quartz variety, SiO2)

Agate (Silicon Dioxide (Chalcedony), SiO2) — sedimentary

Agate

Silicon Dioxide (Chalcedony), SiO2

Polished Ocean Jasper (Silicon Dioxide (Chalcedony/Quartz), SiO2) — gemstone

Polished Ocean Jasper

Silicon Dioxide (Chalcedony/Quartz), SiO2

Argillite / Mudstone (Argillaceous sedimentary rock) — sedimentary

Argillite / Mudstone

Argillaceous sedimentary rock

Red Jasper (Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)) — mineral

Red Jasper

Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)

Carnelian (Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

Greenstone / Serpentinite (Serpentine-group / Altered Mafic Rock) — metamorphic

Greenstone / Serpentinite

Serpentine-group / Altered Mafic Rock

Banded Calcite Spheres (Honey Onyx) (Calcite (CaCO3)) — sedimentary

Banded Calcite Spheres (Honey Onyx)

Calcite (CaCO3)

Fancy Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with impurities

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

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

Turquoise (Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)