Rock Identifier

Category

Man Made Object (Ring)

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

Learn about Man Made Object (Ring) in the encyclopedia

Opalite

Eye Agate

Map Jasper

Goldstone

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Andalusite

Zincite

Bird's Eye Jasper

Phonolite

Marl

Cipollino Marble

Cipollino Marble

Tumbled moss agate (Chalcedony (microcrystalline quartz, SiO₂) with moss-like inclusions) — mineral

Tumbled moss agate

Chalcedony (microcrystalline quartz, SiO₂) with moss-like inclusions

Larvikite (Larvikite (anorthosite–monzonitic feldspathic rock; commonly rich in labradorite)) — igneous

Larvikite

Larvikite (anorthosite–monzonitic feldspathic rock; commonly rich in labradorite)

Tumbled carnelian/chalcedony (Carnelian, a reddish variety of microcrystalline quartz (SiO₂)) — gemstone

Tumbled carnelian/chalcedony

Carnelian, a reddish variety of microcrystalline quartz (SiO₂)

Polished carnelian/chalcedony agate (Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide coloring) — mineral

Polished carnelian/chalcedony agate

Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide coloring

Red jasper (likely polished/tumbled) (Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides) — mineral

Red jasper (likely polished/tumbled)

Microcrystalline quartz/chalcedony, SiO₂, colored mainly by iron oxides

Tumbled jasper or quartzite pebble (Jasper (microcrystalline quartz, SiO₂), possibly iron-stained quartzite) — metamorphic

Tumbled jasper or quartzite pebble

Jasper (microcrystalline quartz, SiO₂), possibly iron-stained quartzite

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

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

Agate

Silicon dioxide (Chalcedony), SiO2

Tumbled jasper, likely red/brown jasper (Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides) — metamorphic

Tumbled jasper, likely red/brown jasper

Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides

Tumbled blue sodalite (Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂) — mineral

Tumbled blue sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂

Unakite (Altered Granite (Granitic Metamorphic Rock)) — metamorphic

Unakite

Altered Granite (Granitic Metamorphic Rock)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Red jasper-like chalcedony pebble (Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper) — mineral

Red jasper-like chalcedony pebble

Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/jasper

Green aventurine (likely) (Quartz variety; silicon dioxide (SiO₂) with green fuchsite mica inclusions) — mineral

Green aventurine (likely)

Quartz variety; silicon dioxide (SiO₂) with green fuchsite mica inclusions

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Epidote (Ca2(Al, Fe)3(SiO4)3(OH)) — mineral

Epidote

Ca2(Al, Fe)3(SiO4)3(OH)

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

Aventurine

Quartz (SiO2) with fuchsite inclusions

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Agate (Chalcedony (SiO2)) — sedimentary

Agate

Chalcedony (SiO2)

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

Agate

Silicon dioxide (Chalcedony), SiO2

Serpentine ((Mg,Fe)3Si2O5(OH)4) — metamorphic

Serpentine

(Mg,Fe)3Si2O5(OH)4

Red Jasper (SiO2 (Microcrystalline Quartz)) — sedimentary

Red Jasper

SiO2 (Microcrystalline Quartz)

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

Tiger's Eye

Silicon Dioxide (SiO2) - Pseudomorph of Quartz after Crocidolite

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

Agate (Chalcedony)

Silicon Dioxide (SiO2)

Amber (Succinite (Fossilized Tree Resin)) — gemstone

Amber

Succinite (Fossilized Tree Resin)

Red Jasper (SiO2, Chalcedony with iron inclusions) — mineral

Red Jasper

SiO2, Chalcedony with iron inclusions

Green Calcite (Calcite (CaCO3)) — mineral

Green Calcite

Calcite (CaCO3)

Jasper (Chalcedony (SiO2)) — mineral

Jasper

Chalcedony (SiO2)

Green Fluorite (Botryoidal/Massive) (Calcium Fluoride (CaF2)) — mineral

Green Fluorite (Botryoidal/Massive)

Calcium Fluoride (CaF2)

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

Yellow Jasper (Silicon Dioxide (SiO2)) — mineral

Yellow Jasper

Silicon Dioxide (SiO2)

White Nephrite Jade (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)) — metamorphic

White Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Soapstone (Steatite) — metamorphic

Soapstone

Steatite

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Pink Thulite (Thulite (Ca2Al3(SiO4)3(OH)) - Pink Zoisite) — Mineral

Pink Thulite

Thulite (Ca2Al3(SiO4)3(OH)) - Pink Zoisite

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

Satin Spar Selenite

Gypsum (CaSO4·2H2O)

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

Rose Quartz

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