Rock Identifier

Category

Mineral (Or Mineraloid If Microcrystalline)

Browse mineral (or mineraloid if microcrystalline) specimens identified by the Rock Identifier community.

Learn about Mineral (Or Mineraloid If Microcrystalline) in the encyclopedia

Shungite

Flower Jasper

Feather Jasper

Dendritic Jasper

Blue Jasper

Sperrylite

Brookite

Leopard Skin Jasper

Leopard Skin Jasper

Banalsite

Black Shale

Garnierite

Wulfenite

Green Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Green Jasper

Microcrystalline Quartz (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Picture Jasper (Silicon Dioxide (SiO2) with iron oxide and organic impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and organic impurities

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert / Chalcedony (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Chalcedony

Microcrystalline Quartz (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Limonite Concretion (Goethite/Limonite concretion (FeO(OH)·nH2O)) — sedimentary

Limonite Concretion

Goethite/Limonite concretion (FeO(OH)·nH2O)

Chert (Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert with Druzy Quartz and Mossy/Iron Inclusions (Microcrystalline Quartz (SiO2)) — sedimentary

Chert with Druzy Quartz and Mossy/Iron Inclusions

Microcrystalline Quartz (SiO2)

Chert (Green variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Green variety)

Microcrystalline Quartz (SiO2)

Greenstone (Metabasalt / Chlorite Schist) — metamorphic

Greenstone

Metabasalt / Chlorite Schist

Kidney Stone (Urolith) (Calculus renalis (Biogenic mineral aggregate)) — mineral

Kidney Stone (Urolith)

Calculus renalis (Biogenic mineral aggregate)

Chert (vuggy variety) (Microcrystalline silica (SiO2)) — sedimentary

Chert (vuggy variety)

Microcrystalline silica (SiO2)

Limonite (Yellow Ochre) (FeO(OH)·nH2O (Hydrous iron(III) oxide-hydroxide mixture)) — Mineral (Iron Ore)

Limonite (Yellow Ochre)

FeO(OH)·nH2O (Hydrous iron(III) oxide-hydroxide mixture)

Mineral (Iron Ore)

Leopard Skin Jasper (Orbicular Jasper (Silicon Dioxide, SiO2)) — sedimentary

Leopard Skin Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Jasper (Iron-stained Chert) (Silicon Dioxide (SiO2) with Iron Oxides) — sedimentary

Jasper (Iron-stained Chert)

Silicon Dioxide (SiO2) with Iron Oxides

Green Quartz (Aventurine) (Silicon Dioxide (SiO2) with inclusions of Fuchsite) — mineral

Green Quartz (Aventurine)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Jasper and Basalt (Lake Superior Agate or Jasper Pebble) (Silicified rock / Cryptocrystalline quartz (SiO2) with basalt matrix) — sedimentary

Jasper and Basalt (Lake Superior Agate or Jasper Pebble)

Silicified rock / Cryptocrystalline quartz (SiO2) with basalt matrix

Chert (variously known as Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (variously known as Flint)

Microcrystalline quartz (SiO2)

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Chalcedony with Quartz (Silicon Dioxide (SiO2)) — mineral

Chalcedony with Quartz

Silicon Dioxide (SiO2)

Chert (Septarian or Nodular variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Septarian or Nodular variety)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Silicon dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon dioxide (SiO2)

Agate (or Chalcedony pebble) (Silicon Dioxide (SiO2)) — mineral

Agate (or Chalcedony pebble)

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

Banded Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Banded Agate

Cryptocrystalline Quartz (SiO2)

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

Carnelian (Agate)

Silicon Dioxide (SiO2)

Common Pebble / Sedimentary Rock Fragment (Lithified clastic sediment) — sedimentary

Common Pebble / Sedimentary Rock Fragment

Lithified clastic sediment

Chert Nodule / Flint (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule / Flint

Microcrystalline Quartz (SiO2)

Yellow jasper (likely iron-stained chert or quartzite) (Microcrystalline quartz, SiO₂, colored by iron oxides/hydroxides) — mineral

Yellow jasper (likely iron-stained chert or quartzite)

Microcrystalline quartz, SiO₂, colored by iron oxides/hydroxides

Polished agate/jasper pebble (Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions) — mineral

Polished agate/jasper pebble

Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Agate (Carnelian-like) (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Agate (Carnelian-like)

Chalcedony (Silicon Dioxide, SiO2)

Aventurine Quartz (Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — mineral

Aventurine Quartz

Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Chert with Quartz Veining (Microcrystalline Silica (SiO2)) — sedimentary

Chert with Quartz Veining

Microcrystalline Silica (SiO2)

Chert (Quartz-rich) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Quartz-rich)

Microcrystalline Silica (SiO2)

Chert (Chalcedony/Agate Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Chalcedony/Agate Pebble)

Microcrystalline Quartz (SiO2)

Chert (containing Iron Oxide) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (containing Iron Oxide)

Microcrystalline Quartz (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)