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

Coquina (Biogenic Limestone (CaCO3)) — sedimentary

Coquina

Biogenic Limestone (CaCO3)

Polished fossilized wood (likely petrified wood) (Silicified wood; commonly quartz (SiO₂) replacing wood tissue) — fossil

Polished fossilized wood (likely petrified wood)

Silicified wood; commonly quartz (SiO₂) replacing wood tissue

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Carnelian Agate (Chalcedony (SiO2)) — mineral

Carnelian Agate

Chalcedony (SiO2)

Polished agate or jasper cabochon (Cryptocrystalline quartz, SiO₂, possibly iron-rich jasper inclusions) — gemstone

Polished agate or jasper cabochon

Cryptocrystalline quartz, SiO₂, possibly iron-rich jasper inclusions

Agate (Chalcedony (SiO2)) — sedimentary

Agate

Chalcedony (SiO2)

Agate / Chalcedony Geode (Silicon Dioxide (SiO2)) — sedimentary

Agate / Chalcedony Geode

Silicon Dioxide (SiO2)

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

Nephrite Jade

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

Tiger's Eye (Silicon Dioxide with Crocidolite inclusions (SiO2)) — gemstone

Tiger's Eye

Silicon Dioxide with Crocidolite inclusions (SiO2)

Fossilized Gastropod Shell (Gastropoda (Fossilized internal mold or shell body)) — fossil

Fossilized Gastropod Shell

Gastropoda (Fossilized internal mold or shell body)

Tiger's Eye (Quartz pseudomorph after Crocidolite (SiO2 with Fe oxide inclusions)) — mineral

Tiger's Eye

Quartz pseudomorph after Crocidolite (SiO2 with Fe oxide inclusions)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Green Jasper / Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper / Chert

Microcrystalline Quartz (SiO2)

Jasper in Calcite / Brecciated Jasper (Silicon dioxide with calcium carbonate (SiO2 with CaCO3)) — sedimentary

Jasper in Calcite / Brecciated Jasper

Silicon dioxide with calcium carbonate (SiO2 with CaCO3)

Jasper (Silicon Dioxide (Microcrystalline Quartz), SiO2) — sedimentary

Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Agate (Chalcedony (SiO2)) — sedimentary

Agate

Chalcedony (SiO2)

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

Agate

Silicon dioxide (Chalcedony), SiO2

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

Amethyst

Quartz (Silicon Dioxide, SiO2)

Botryoidal Chalcedony / Quartz (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony / Quartz

Silicon Dioxide (SiO2)

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Tumbled Quartz (Silicon Dioxide (SiO2)) — mineral

Tumbled Quartz

Silicon Dioxide (SiO2)

Fossil Snail Shell (Embedded in Resin) (Gastropoda fossil) — fossil

Fossil Snail Shell (Embedded in Resin)

Gastropoda fossil

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

Jasper (Silicon dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper

Silicon dioxide (SiO2) microcrystalline quartz

Red Jasper (Microcrystalline Quartz (Chalcedony), SiO2) — sedimentary

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Clear Quartz (Faceted) (Silicon dioxide (SiO2)) — gemstone

Clear Quartz (Faceted)

Silicon dioxide (SiO2)

Turquoise (Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Amazonite (Microcline (variety Amazonite), K(AlSi3O8)) — mineral

Amazonite

Microcline (variety Amazonite), K(AlSi3O8)

Amazonite (Potassium Feldspar (Microcline) - K(AlSi3O8)) — mineral

Amazonite

Potassium Feldspar (Microcline) - K(AlSi3O8)

Malachite (Copper(II) carbonate hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper(II) carbonate hydroxide, Cu2CO3(OH)2

Amazonite (Amazonite (KAlSi3O8)) — mineral

Amazonite

Amazonite (KAlSi3O8)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Amazonite (K(AlSi3O8) - Microcline (Var. Amazonite)) — mineral

Amazonite

K(AlSi3O8) - Microcline (Var. Amazonite)

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

Sodalite

Sodalite, Na8(Al6Si6O24)Cl2

Mudstone/Siltstone with Liesegang Bands (Argillaceous Sedimentary Rock with Chemical Banding) — sedimentary

Mudstone/Siltstone with Liesegang Bands

Argillaceous Sedimentary Rock with Chemical Banding

Jasper Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper Pebble

Microcrystalline Quartz (SiO2)

Agate (Chalcedony (SiO2)) — Mineral

Agate

Chalcedony (SiO2)

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Black Onyx (Chalcedony (SiO2)) — gemstone

Black Onyx

Chalcedony (SiO2)

Banded Agate Pebble (Chalcedony (SiO2)) — sedimentary

Banded Agate Pebble

Chalcedony (SiO2)