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

Chert (specifically Gray/Blue-Gray Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Gray/Blue-Gray Chert)

Chert (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Chert (Jasper/Flint variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2)

Chert (specifically Zebra Chert/Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Zebra Chert/Flint)

Silicon Dioxide (SiO2)

Chert (Nodule/Pebble) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Nodule/Pebble)

Chert (Silicon Dioxide, SiO2)

Sandstone (Ferruginous) (Arenite with Iron Oxide cement (SiO2 + Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (SiO2 + Fe2O3)

Blue-dyed Quartz Druzy (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Blue-dyed Quartz Druzy

Silicon Dioxide (SiO2) with artificial pigment

Rainbow Moonstone (White Labradorite (Plagioclase Feldspar, (Na,Ca)(Al,Si)4O8)) — gemstone

Rainbow Moonstone

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

Moldavite (Tektite (Silicates with aluminum, iron, manganese, and potassium oxide glass)) — meteorite

Moldavite

Tektite (Silicates with aluminum, iron, manganese, and potassium oxide glass)

Sunstone (Feldspar) (Plagioclase / Potassium Feldspar (KAlSi3O8 / (Na,Ca)Al1-2Si2-3O8)) — mineral

Sunstone (Feldspar)

Plagioclase / Potassium Feldspar (KAlSi3O8 / (Na,Ca)Al1-2Si2-3O8)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Tiger's Eye (SiO2 (Silicon Dioxide - pseudomorph after riebeckite/crocidolite)) — metamorphic

Tiger's Eye

SiO2 (Silicon Dioxide - pseudomorph after riebeckite/crocidolite)

Lake Superior Agate (Silicon Dioxide (Chalcedony / Quartz)) — gemstone

Lake Superior Agate

Silicon Dioxide (Chalcedony / Quartz)

Pink Sapphire (Corundum (Al2O3 with chromium and iron traces)) — gemstone

Pink Sapphire

Corundum (Al2O3 with chromium and iron traces)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

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

Citrine Quartz

Silicon Dioxide (SiO₂) with iron impurities

Bloodstone (Heliotrope (Quartz SiO2 with Iron Oxide inclusions)) — sedimentary

Bloodstone

Heliotrope (Quartz SiO2 with Iron Oxide inclusions)

Diamond (Faceted) (Carbon (C)) — gemstone

Diamond (Faceted)

Carbon (C)

Diamond (or Simulant) (Carbon (C)) — gemstone

Diamond (or Simulant)

Carbon (C)

Carnelian (Carnelian (Red Chalcedony), SiO2 (Silicon Dioxide with iron oxide impurities)) — mineral

Carnelian

Carnelian (Red Chalcedony), SiO2 (Silicon Dioxide with iron oxide impurities)

Carnelian Agate (Silicon Dioxide (SiO2)) — mineral

Carnelian Agate

Silicon Dioxide (SiO2)

Blue Topaz (Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2) — gemstone

Blue Topaz

Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Diamond (or Simulant) (Carbon (C)) — gemstone

Diamond (or Simulant)

Carbon (C)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Citrine (Tumbled Quartz) (Silicon Dioxide (SiO2)) — mineral

Citrine (Tumbled Quartz)

Silicon Dioxide (SiO2)

Moonstone (Tumbled) (Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite) — mineral

Moonstone (Tumbled)

Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite

Amethyst (Amethyst (variety of Quartz, SiO2)) — mineral

Amethyst

Amethyst (variety of Quartz, SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Tahitian Pearl (Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3) — mineral

Tahitian Pearl

Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3

Black Onyx (Silicon dioxide / Chalcedony (SiO2)) — mineral

Black Onyx

Silicon dioxide / Chalcedony (SiO2)

Aquamarine (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Aquamarine

Beryllium aluminum silicate (Be3Al2Si6O18)

Aquamarine (Beryl (Be3Al2Si6O18 with Iron traces)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with Iron traces)

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

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Agate (Moss or Green Agate) (Silicon Dioxide (SiO2)) — mineral

Agate (Moss or Green Agate)

Silicon Dioxide (SiO2)

Carnelian (Carnelian Chalcedony (SiO2)) — mineral

Carnelian

Carnelian Chalcedony (SiO2)

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

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Bloodstone (Heliotrope (a variety of Cryptocrystalline Quartz / Jasper, SiO2)) — mineral

Bloodstone

Heliotrope (a variety of Cryptocrystalline Quartz / Jasper, SiO2)

Quartz (Druzy) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy)

Silicon Dioxide (SiO2)

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

Sunstone

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

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

Hematite

Iron(III) oxide (Fe2O3)