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

Polished Picasso jasper (Silicified carbonate rock, commonly marketed as Picasso jasper; composition varies and is not a single mineral species) — metamorphic

Polished Picasso jasper

Silicified carbonate rock, commonly marketed as Picasso jasper; composition varies and is not a single mineral species

Polished leopard-skin jasper (Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and other mineral impurities) — sedimentary

Polished leopard-skin jasper

Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and other mineral impurities

Tumbled carnelian (orange-red chalcedony) (Carnelian, a microcrystalline variety of quartz (SiO₂)) — gemstone

Tumbled carnelian (orange-red chalcedony)

Carnelian, a microcrystalline variety of quartz (SiO₂)

Tumbled unakite (Unakite (epidote + pink K-feldspar + quartz)) — metamorphic

Tumbled unakite

Unakite (epidote + pink K-feldspar + quartz)

Polished brown jasper (Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich variety) — mineral

Polished brown jasper

Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich variety

Tumbled jasper (likely brecciated or orbicular jasper) (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions) — mineral

Tumbled jasper (likely brecciated or orbicular jasper)

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions

Red jasper (likely rough jasper/chert) (Microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Red jasper (likely rough jasper/chert)

Microcrystalline quartz (SiO₂), commonly colored by iron oxides

Red cabochon gemstone, likely carnelian (Carnelian: orange-red chalcedony, microcrystalline quartz (SiO₂)) — gemstone

Red cabochon gemstone, likely carnelian

Carnelian: orange-red chalcedony, microcrystalline quartz (SiO₂)

Tumbled carnelian (likely orange chalcedony) (Carnelian, a cryptocrystalline variety of quartz; SiO₂, commonly colored by iron oxides) — gemstone

Tumbled carnelian (likely orange chalcedony)

Carnelian, a cryptocrystalline variety of quartz; SiO₂, commonly colored by iron oxides

Polished banded agate (likely carnelian/onyx variety) (Microcrystalline quartz, SiO₂ (chalcedony with iron-oxide bands)) — gemstone

Polished banded agate (likely carnelian/onyx variety)

Microcrystalline quartz, SiO₂ (chalcedony with iron-oxide bands)

Polished dendritic jasper or agate slab (Microcrystalline quartz (SiO₂), likely jasper with chalcedony and iron/manganese dendrites) — mineral

Polished dendritic jasper or agate slab

Microcrystalline quartz (SiO₂), likely jasper with chalcedony and iron/manganese dendrites

Obsidian (likely snowflake or smoky obsidian fragment) (Volcanic glass; predominantly rhyolitic silica glass (SiO₂-rich)) — igneous

Obsidian (likely snowflake or smoky obsidian fragment)

Volcanic glass; predominantly rhyolitic silica glass (SiO₂-rich)

Unakite (Granite (altered hydrothermal)) — igneous

Unakite

Granite (altered hydrothermal)

Petoskey Stone (Hexagonaria percarinata (Fossilized rugose coral)) — fossil

Petoskey Stone

Hexagonaria percarinata (Fossilized rugose coral)

Petoskey Stone (Hexagonaria percarinata) — fossil

Petoskey Stone

Hexagonaria percarinata

Rhodonite (Inosilicate (Manganese Iron Magnesium Calcium Silicate, (Mn,Fe,Mg,Ca)SiO3)) — mineral

Rhodonite

Inosilicate (Manganese Iron Magnesium Calcium Silicate, (Mn,Fe,Mg,Ca)SiO3)

Labradorite (Plagioclase Feldspar (Ca,Na)(Al,Si)4O8) — mineral

Labradorite

Plagioclase Feldspar (Ca,Na)(Al,Si)4O8

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Translucent chalcedony (likely agate or common opal) (Microcrystalline quartz, SiO₂; possible hydrated silica opal, SiO₂·nH₂O) — mineral

Translucent chalcedony (likely agate or common opal)

Microcrystalline quartz, SiO₂; possible hydrated silica opal, SiO₂·nH₂O

Tumbled agate/chalcedony (Microcrystalline quartz (SiO₂), likely agate or jasper-bearing chalcedony) — mineral

Tumbled agate/chalcedony

Microcrystalline quartz (SiO₂), likely agate or jasper-bearing chalcedony

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

Polished brown jasper

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

Pink quartz beads (likely rose quartz) (Quartz, SiO₂; pink color commonly from trace inclusions or lattice defects) — mineral

Pink quartz beads (likely rose quartz)

Quartz, SiO₂; pink color commonly from trace inclusions or lattice defects

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Obsidian (Volcanic Glass (Amorphous silicon dioxide with impurities)) — igneous

Obsidian

Volcanic Glass (Amorphous silicon dioxide with impurities)

Unakite (Granite composed of pink orthoclase feldspar, green epidote, and colorless quartz) — igneous

Unakite

Granite composed of pink orthoclase feldspar, green epidote, and colorless quartz

Flint / Chert (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Flint / Chert

Silicon dioxide (SiO2) - Microcrystalline Quartz

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Lapis Lazuli (or Sodalite) (Lapis Lazuli (principally Lazurite: Na6Ca2(Al6Si6O24)S2)) — metamorphic

Lapis Lazuli (or Sodalite)

Lapis Lazuli (principally Lazurite: Na6Ca2(Al6Si6O24)S2)

Turquoise (CuAl6(PO4)4(OH)8·4H2O (Hydrous copper aluminium phosphate)) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O (Hydrous copper aluminium phosphate)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Nephrite Jade (Ca2(Mg, Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)) — metamorphic

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Agate (Chalcedony (SiO2) with impurities) — sedimentary

Agate

Chalcedony (SiO2) with impurities

Amazonite (Microcline (var. Amazonite) - KAlSi3O8) — mineral

Amazonite

Microcline (var. Amazonite) - KAlSi3O8

Amazonite (Amazonite (K[AlSi3O8])) — mineral

Amazonite

Amazonite (K[AlSi3O8])

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Ocean Jasper (SiO2 (Silicon Dioxide) - Chalcedony variety) — mineral

Ocean Jasper

SiO2 (Silicon Dioxide) - Chalcedony variety

Charoite (Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)) — metamorphic

Charoite

Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)

Fossilized Gastropod (Snail) (Class Gastropoda (internal mold or 'steinkern')) — sedimentary

Fossilized Gastropod (Snail)

Class Gastropoda (internal mold or 'steinkern')

Leopard Skin Jasper (Rhyolite (Silicon Dioxide with impurities), SiO2) — igneous

Leopard Skin Jasper

Rhyolite (Silicon Dioxide with impurities), SiO2

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)