Rock Identifier

Category

Igneous And Sedimentary

Browse igneous and sedimentary specimens identified by the Rock Identifier community.

Learn about Igneous And Sedimentary in the encyclopedia

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Carbonatite

Carbonatite

Conglomerate

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Breccia

Ironstone

Ironstone

Lamproite

Lamproite

Troctolite

Troctolite

Basalt

Basalt

Gabbro

Gabbro

Kimberlite

Kimberlite

Diorite

Diorite

Coal

Coal

Granite / Arkosic Sandstone (Coarse Igneous or Sedimentary Aggregate) (Granite / Quartz-Feldspar Aggregate) — igneous

Granite / Arkosic Sandstone (Coarse Igneous or Sedimentary Aggregate)

Granite / Quartz-Feldspar Aggregate

igneous
Quartz-rich weathered rock, possibly quartzite (Quartzite (mostly SiO₂); exact identification is uncertain from the image) — metamorphic

Quartz-rich weathered rock, possibly quartzite

Quartzite (mostly SiO₂); exact identification is uncertain from the image

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

mineral
Basalt with Chert or Jasper Inclusion (Igneous basalt / sedimentary chert nodule) — igneous

Basalt with Chert or Jasper Inclusion

Igneous basalt / sedimentary chert nodule

igneous
Greenstone (Greywacke or Nephrite Jade variant) (Metamorphosed mafic igneous or sedimentary rock (e.g., Actinolite-Chlorite Schist)) — metamorphic

Greenstone (Greywacke or Nephrite Jade variant)

Metamorphosed mafic igneous or sedimentary rock (e.g., Actinolite-Chlorite Schist)

metamorphic
Botryoidal Chalcedony (Chalcedony (SiO2)) — Mineral

Botryoidal Chalcedony

Chalcedony (SiO2)

Mineral
Quartz (Chalcedony/Agate) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chalcedony/Agate)

Silicon Dioxide (SiO2)

mineral
Tumbled Agate (Silicon Dioxide (Chalcedony / Quartz)) — gemstone

Tumbled Agate

Silicon Dioxide (Chalcedony / Quartz)

gemstone
Tumbled Agate (Silicon dioxide (SiO2)) — sedimentary

Tumbled Agate

Silicon dioxide (SiO2)

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

Agate

Silicon dioxide (Chalcedony), SiO2

sedimentary
Tumbled Agate (Silicon Dioxide (SiO2)) — gemstone

Tumbled Agate

Silicon Dioxide (SiO2)

gemstone
Carnelian Agate (Tumbled) (Chalcedony (SiO2)) — mineral

Carnelian Agate (Tumbled)

Chalcedony (SiO2)

mineral
Tumbled Agate (Silicon Dioxide (Chalcedony variety), SiO2) — gemstone

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

gemstone
Agate Bookend / Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Agate Bookend / Quartz Geode

Silicon Dioxide (SiO2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon dioxide (Chalcedony), SiO2

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

Agate

Silicon dioxide (Chalcedony), SiO2

sedimentary
Ruby Zoisite (Anyolite (Calcium aluminium silicate with Chromium/Corundum inclusions)) — metamorphic

Ruby Zoisite

Anyolite (Calcium aluminium silicate with Chromium/Corundum inclusions)

metamorphic
Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

metamorphic
Agate Nodule (Silicon Dioxide (Quartz/Chalcedony), SiO2) — sedimentary

Agate Nodule

Silicon Dioxide (Quartz/Chalcedony), SiO2

sedimentary
Tumbled Agate (Silicon Dioxide (Chalcedony variety), SiO2) — mineral

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

mineral
Quartz (Silicon Dioxide (SiO2)) — Mineral

Quartz

Silicon Dioxide (SiO2)

Mineral
Agate (Silicon Dioxide (Quartz), SiO2) — mineral

Agate

Silicon Dioxide (Quartz), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

sedimentary
Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

mineral
Tumbled Agate (Silicon Dioxide (Chalcedony variety), SiO2) — gemstone

Tumbled Agate

Silicon Dioxide (Chalcedony variety), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

sedimentary
Epidote with Quartz (Ca2(Al,Fe)3(SiO4)3(OH) (Epidote) / SiO2 (Quartz)) — mineral

Epidote with Quartz

Ca2(Al,Fe)3(SiO4)3(OH) (Epidote) / SiO2 (Quartz)

mineral
Agate (Chalcedony (SiO2)) — mineral

Agate

Chalcedony (SiO2)

mineral
Tumbled Agate (Silicon Dioxide (Quartz variety: Chalcedony)) — gemstone

Tumbled Agate

Silicon Dioxide (Quartz variety: Chalcedony)

gemstone
Blue Agate Slice (Chalcedony (SiO2)) — gemstone

Blue Agate Slice

Chalcedony (SiO2)

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

Agate

Silicon dioxide (Chalcedony), SiO2

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

Agate

Silicon dioxide (Chalcedony), SiO2

gemstone
Tumbled Black Stone (Unknown (possibly basalt, obsidian, or black jasper)) — igneous or sedimentary

Tumbled Black Stone

Unknown (possibly basalt, obsidian, or black jasper)

igneous or sedimentary
Agate (Silicon Dioxide (Chalcedony variety), SiO2) — gemstone

Agate

Silicon Dioxide (Chalcedony variety), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Chalcedony (Agate)

Silicon Dioxide (SiO2)

mineral
Yellow Chalcedony (likely Carnelian or Agate) (Silicon dioxide (SiO2)) — mineral

Yellow Chalcedony (likely Carnelian or Agate)

Silicon dioxide (SiO2)

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

Agate

Silicon Dioxide (Chalcedony), SiO2

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

Agate

Silicon Dioxide (Chalcedony), SiO2

sedimentary
Carnelian / Agate (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Carnelian / Agate

Silicon Dioxide (SiO2) - Chalcedony

mineral