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 (Rose de France varieties or Amethystine Quartz) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Rose de France varieties or Amethystine Quartz)

Silicon Dioxide (SiO2) with iron impurities

Precious Opal in Matrix (Hydrated Silica (SiO2·nH2O)) — mineral

Precious Opal in Matrix

Hydrated Silica (SiO2·nH2O)

Citrine (likely Heat-Treated Amethyst) (Silicon Dioxide (SiO2)) — mineral

Citrine (likely Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

Moonstone (Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8) — mineral

Moonstone

Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8

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

Amethyst Quartz

Silicon Dioxide (SiO2) with iron impurities

Mystic Topaz (Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)) — mineral

Mystic Topaz

Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Banded Onyx (Chalcedony (SiO2)) — mineral

Banded Onyx

Chalcedony (SiO2)

Iron Meteorite (Siderite (Iron-Nickel Alloy)) — mineral

Iron Meteorite

Siderite (Iron-Nickel Alloy)

Moss Agate (Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide) — mineral

Moss Agate

Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide

Carnelian (Red Chalcedony) (SiO2 (Silicon Dioxide) with Iron Oxide impurities) — mineral

Carnelian (Red Chalcedony)

SiO2 (Silicon Dioxide) with Iron Oxide impurities

Iron Meteorite (Iron-Nickel Alloy (Kamacite and Taenite)) — mineral

Iron Meteorite

Iron-Nickel Alloy (Kamacite and Taenite)

Black Sapphire (Corundum (Al2O3)) — gemstone

Black Sapphire

Corundum (Al2O3)

Larimar (Pectolite (NaCa2Si3O8(OH))) — gemstone

Larimar

Pectolite (NaCa2Si3O8(OH))

Ruby (Corundum (Al2O3:Cr)) — gemstone

Ruby

Corundum (Al2O3:Cr)

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

Larimar (Pectolite)

Pectolite (NaCa2Si3O8(OH))

Aquamarine (Beryl (Be3Al2(SiO3)6)) — gemstone

Aquamarine

Beryl (Be3Al2(SiO3)6)

Black Onyx (Silicon Dioxide (SiO2) - Chalcedony) — gemstone

Black Onyx

Silicon Dioxide (SiO2) - Chalcedony

Bloodstone (Heliotrope) (Cryptocrystalline Quartz (SiO2) with inclusions of Iron Oxide/Hematite) — mineral

Bloodstone (Heliotrope)

Cryptocrystalline Quartz (SiO2) with inclusions of Iron Oxide/Hematite

Amethyst (Crystalline Quartz (SiO2 with iron impurities)) — gemstone

Amethyst

Crystalline Quartz (SiO2 with iron impurities)

Tanzanite (Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))) — gemstone

Tanzanite

Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))

Carnelian (Silicon dioxide (SiO2) with iron oxide impurities) — gemstone

Carnelian

Silicon dioxide (SiO2) with iron oxide impurities

Carnelian (Carnelian Agate (SiO2)) — gemstone

Carnelian

Carnelian Agate (SiO2)

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

Moonstone

Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite

White Buffalo Turquoise (or White Buffalo Stone/Howlite/Magnesite) (Calcite/Dolomite with Chert/Flint (Often mislabeled as Turquoise, true White Buffalo is a mix of chalcedony and calcite/dolomite)) — gemstone

White Buffalo Turquoise (or White Buffalo Stone/Howlite/Magnesite)

Calcite/Dolomite with Chert/Flint (Often mislabeled as Turquoise, true White Buffalo is a mix of chalcedony and calcite/dolomite)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Emerald in Matrix (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

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

Amethyst

Crystalline Silicon Dioxide with iron impurities (SiO2)

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

Hematite

Iron (III) Oxide (Fe2O3)

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

Sunstone (Feldspar)

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

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Carnelian (Carnelian (Chert/Chalcedony variety of Quartz, SiO2)) — mineral

Carnelian

Carnelian (Chert/Chalcedony variety of Quartz, SiO2)

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

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

Turquoise (Turquoise - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Moonstone (Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8) intergrowths) — mineral

Moonstone

Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8) intergrowths

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Moss Agate (SiO2) — mineral

Moss Agate

SiO2

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

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Chrysoprase (Nickel-bearing Chalcedony (SiO2 with Ni impurities)) — mineral

Chrysoprase

Nickel-bearing Chalcedony (SiO2 with Ni impurities)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities