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

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Red jasper (Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides) — metamorphic

Red jasper

Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides

Chalcedony or chert pebble with iron-oxide staining (Microcrystalline quartz (SiO₂), possibly a weathered chert or flint nodule) — sedimentary

Chalcedony or chert pebble with iron-oxide staining

Microcrystalline quartz (SiO₂), possibly a weathered chert or flint nodule

Tumbled brecciated jasper (Microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions) — gemstone

Tumbled brecciated jasper

Microcrystalline quartz (SiO₂) with iron-oxide and other mineral inclusions

Polished red jasper pebble (Jasper, microcrystalline quartz (SiO₂) colored mainly by hematite/goethite) — metamorphic

Polished red jasper pebble

Jasper, microcrystalline quartz (SiO₂) colored mainly by hematite/goethite

Tumbled ocean jasper (orbicular jasper), likely brecciated variety (Jasper: microcrystalline quartz (SiO₂) with iron-oxide staining and other silicate inclusions) — metamorphic

Tumbled ocean jasper (orbicular jasper), likely brecciated variety

Jasper: microcrystalline quartz (SiO₂) with iron-oxide staining and other silicate inclusions

Banded Chert (Silicon Dioxide (SiO2) with impurities) — sedimentary

Banded Chert

Silicon Dioxide (SiO2) with impurities

Quartzite (with mineral vein) (Metamorphosed Quartz-rich Sandstone (SiO2)) — metamorphic

Quartzite (with mineral vein)

Metamorphosed Quartz-rich Sandstone (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Fossil Shark Tooth (Chondrichthyes dentition (Fossilized Tooth)) — fossil

Fossil Shark Tooth

Chondrichthyes dentition (Fossilized Tooth)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Red Jasper (Quartz) (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — sedimentary

Red Jasper (Quartz)

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Banded Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Banded Agate

Cryptocrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

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

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Dalmatian Jasper (Microcrystalline Quartz with Arfvedsonite/Tourmaline inclusions) — igneous

Dalmatian Jasper

Microcrystalline Quartz with Arfvedsonite/Tourmaline inclusions

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Pink and Yellow Chert) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Pink and Yellow Chert)

Microcrystalline Quartz (SiO2)

Polished banded jasper pebble (Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral impurities) — mineral

Polished banded jasper pebble

Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral impurities

Chert (Jasper/Flint Pebble) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Jasper/Flint Pebble)

Microcrystalline quartz (SiO2)

Limonite Boxwork / Iron Ore Concretion (FeO(OH)qnH2O (Hydrated iron oxide)) — sedimentary

Limonite Boxwork / Iron Ore Concretion

FeO(OH)qnH2O (Hydrated iron oxide)

Tumbled red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides) — mineral

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Tumbled red jasper (Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides) — mineral

Tumbled red jasper

Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides

Polished banded jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions) — mineral

Polished banded jasper

Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions

Polished brecciated jasper (likely Apache tear–type iron-rich jasper) (Jasper, microcrystalline quartz (SiO₂), colored by hematite/goethite and other iron oxides) — mineral

Polished brecciated jasper (likely Apache tear–type iron-rich jasper)

Jasper, microcrystalline quartz (SiO₂), colored by hematite/goethite and other iron oxides

Likely brown jasper or iron-stained chert (Microcrystalline quartz (SiO₂), with iron-oxide inclusions) — mineral

Likely brown jasper or iron-stained chert

Microcrystalline quartz (SiO₂), with iron-oxide inclusions

Polished red-and-cream jasper (Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Polished red-and-cream jasper

Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides

Red-orange jasper pebble (Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides) — mineral

Red-orange jasper pebble

Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides

Polished red jasper (likely brecciated or opaque chalcedony) (Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Polished red jasper (likely brecciated or opaque chalcedony)

Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides

Tumbled jasper pebble (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — mineral

Tumbled jasper pebble

Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities

Limonite (Ironstone) (FeO(OH)qn H2O) — sedimentary

Limonite (Ironstone)

FeO(OH)qn H2O

Yellow Jasper (Silicon Dioxide (SiO2) with Iron Hydroxide inclusions) — mineral

Yellow Jasper

Silicon Dioxide (SiO2) with Iron Hydroxide inclusions

Agate (SiO2 (Silicon dioxide, cryptocrystalline quartz)) — mineral

Agate

SiO2 (Silicon dioxide, cryptocrystalline quartz)

Carnelian Agate (Chalcedony (SiO2)) — mineral

Carnelian Agate

Chalcedony (SiO2)

Limonite (Ironstone) (Goethite/Limonite (Hydrated iron(III) oxide-hydroxide)) — mineral

Limonite (Ironstone)

Goethite/Limonite (Hydrated iron(III) oxide-hydroxide)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Beach Pebble (Quartzite / Sandstone) (Quartz-rich sedimentary or metamorphic rock pebble) — sedimentary

Beach Pebble (Quartzite / Sandstone)

Quartz-rich sedimentary or metamorphic rock pebble

Yellow Jasper (Cryptocrystalline Quartz (SiO2) with Goethite/Limonite inclusions) — sedimentary

Yellow Jasper

Cryptocrystalline Quartz (SiO2) with Goethite/Limonite inclusions

Petrified Wood (Silicified wood (primarily quartz, SiO2)) — fossil

Petrified Wood

Silicified wood (primarily quartz, SiO2)

Fossil bone or tooth fragment (Indeterminate fossilized vertebrate bone/tooth; taxonomic identification is not possible from this blurred image) — fossil

Fossil bone or tooth fragment

Indeterminate fossilized vertebrate bone/tooth; taxonomic identification is not possible from this blurred image

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Fossilized Shark Tooth (Chondrichthyes tooth) — fossil

Fossilized Shark Tooth

Chondrichthyes tooth