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

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Carnelian (Red Chalcedony)

Silicon Dioxide (SiO2)

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

Sunstone

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

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Geode (Unopened) (Quartz Geode (SiO2) / Chalcedony Concretion) — mineral

Geode (Unopened)

Quartz Geode (SiO2) / Chalcedony Concretion

Amber (and Cubic Zirconia) (Fossilized Tree Resin) — mineraloid

Amber (and Cubic Zirconia)

Fossilized Tree Resin

Aquamarine (Beryl) (Beryllium Aluminum Silicate - Be3Al2Si6O18) — gemstone

Aquamarine (Beryl)

Beryllium Aluminum Silicate - Be3Al2Si6O18

Pearl (Pendant) (Calcium Carbonate (Aragonite/Calcite) - CaCO3) — gemstone

Pearl (Pendant)

Calcium Carbonate (Aragonite/Calcite) - CaCO3

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

Carnelian

SiO2 (Silicon Dioxide - Chalcedony variant)

Quartz (Druzy / Goldstone Gemstone Cabochon) (Silicon Dioxide (SiO2)) — gemstone

Quartz (Druzy / Goldstone Gemstone Cabochon)

Silicon Dioxide (SiO2)

Pearl (Biogenic Gemstone) (Calcium Carbonate (Aragonite and Calcite) with Conchiolin) — gemstone

Pearl (Biogenic Gemstone)

Calcium Carbonate (Aragonite and Calcite) with Conchiolin

Amethyst (Faceted) (Silicon Dioxide with iron impurities (SiO2)) — gemstone

Amethyst (Faceted)

Silicon Dioxide with iron impurities (SiO2)

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

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

Larimar (Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Pectolite (NaCa2Si3O8(OH))

Labradorite (Gray Moonlight variation) ((Ca, Na)(Al, Si)4O8) — mineral

Labradorite (Gray Moonlight variation)

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

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Tanzanite (Blue Zoisite (Ca2Al3(SiO4)3(OH))) — gemstone

Tanzanite

Blue Zoisite (Ca2Al3(SiO4)3(OH))

Pink Spinel (Magnesium Aluminum Oxide (MgAl2O4)) — gemstone

Pink Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Onyx (Black Onyx) (Onyx (Silicon Dioxide, SiO2)) — mineral

Onyx (Black Onyx)

Onyx (Silicon Dioxide, SiO2)

Yellow Quartz / Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz / Citrine Quartz

Silicon Dioxide (SiO2)

Citrine or Yellow Quartz (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine or Yellow Quartz

Silicon Dioxide (SiO2) with iron impurities

Druzy Quartz on Chalcedony Matrix (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Chalcedony Matrix

Silicon Dioxide (SiO2)

Opal (Hydrated Amorphous Silica (SiO2·nH2O)) — mineral

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Pearl (Calcium Carbonate (CaCO3) + Conchiolin) — mineral

Pearl

Calcium Carbonate (CaCO3) + Conchiolin

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

Amethyst

Quartz (Silicon Dioxide with iron impurities), SiO2

Liesegang Rings (in Sandstone or Siltstone) (Ferruginous Sandstone with Liesegang Banding) — sedimentary

Liesegang Rings (in Sandstone or Siltstone)

Ferruginous Sandstone with Liesegang Banding

Crushed Stone / Gravel (Aggregatus saxum (variable mineral composition)) — sedimentary

Crushed Stone / Gravel

Aggregatus saxum (variable mineral composition)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Granite (Phaneritic plutonic rock (Quartz, Feldspar, Mica)) — igneous

Granite

Phaneritic plutonic rock (Quartz, Feldspar, Mica)

Basalt (Basalt (containing plagioclase, pyroxene, and olivine)) — igneous

Basalt

Basalt (containing plagioclase, pyroxene, and olivine)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Tumbled jasper, likely picture jasper or brecciated jasper (Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide pigments) — mineral

Tumbled jasper, likely picture jasper or brecciated jasper

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

Unakite (Altered Granite (Epidote-bearing Granitic Rock)) — metamorphic

Unakite

Altered Granite (Epidote-bearing Granitic Rock)

Petrified Wood (Silicified wood (primarily quartz replacing organic cellulose)) — fossil

Petrified Wood

Silicified wood (primarily quartz replacing organic cellulose)

Quartz (Peach/Orange) (Silicon Dioxide (SiO2)) — mineral

Quartz (Peach/Orange)

Silicon Dioxide (SiO2)

Lapis Lazuli (Lapis Lazuli (Rock containing lazurite, calcite, and pyrite)) — rock

Lapis Lazuli

Lapis Lazuli (Rock containing lazurite, calcite, and pyrite)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Yellow Chalcedony (SiO2 (Silicon Dioxide)) — mineral

Yellow Chalcedony

SiO2 (Silicon Dioxide)

Agate (SiO2 (Silicon Dioxide)) — gemstone

Agate

SiO2 (Silicon Dioxide)

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

Yellow Jasper

Silicon Dioxide (SiO2) - Chalcedony variety

Red Jasper (SiO2 (Microcrystalline Quartz)) — sedimentary

Red Jasper

SiO2 (Microcrystalline Quartz)

Tumbled green aventurine (Quartzite dominated by quartz (SiO₂), with green mica/fuchsite inclusions) — mineral

Tumbled green aventurine

Quartzite dominated by quartz (SiO₂), with green mica/fuchsite inclusions