Rock Identifier

Category

Mineral (Native Element)

Browse mineral (native element) specimens identified by the Rock Identifier community.

Learn about Mineral (Native Element) in the encyclopedia

Sulfur

Carbonatite

Euxenite

Quartz with Iron Staining and Chlorite Inclusions (Silicon Dioxide (SiO2)) — mineral

Quartz with Iron Staining and Chlorite Inclusions

Silicon Dioxide (SiO2)

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

Amethyst

Silicon dioxide (SiO2) with iron impurities

Smoky Quartz (Tumbled) (Smoky Quartz (SiO2 - Silicon Dioxide)) — mineral

Smoky Quartz (Tumbled)

Smoky Quartz (SiO2 - Silicon Dioxide)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Rough Green Tourmaline (Verdelite) (Elbaite (Complex Silicate) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) — mineral

Rough Green Tourmaline (Verdelite)

Elbaite (Complex Silicate) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Watermelon Tourmaline (Elbaite - Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3OH) — mineral

Watermelon Tourmaline

Elbaite - Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3OH

Yellow Quartz (or Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (or Citrine Quartz)

Silicon Dioxide (SiO2)

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

Amethyst

Silicon Dioxide with Iron impurities (SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Blue-green raw mineral specimen, likely apatite (Fluorapatite, Ca₅(PO₄)₃F (probable; visual identification only)) — mineral

Blue-green raw mineral specimen, likely apatite

Fluorapatite, Ca₅(PO₄)₃F (probable; visual identification only)

Sandstone (likely Fossiliferous) (Arenite / Sedimentum arenaceum) — sedimentary

Sandstone (likely Fossiliferous)

Arenite / Sedimentum arenaceum

Sandstone (Weathered Coastal Boulder) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (Weathered Coastal Boulder)

Arenite (composed primarily of SiO2)

Purple fluorite-bearing matrix specimen (Fluorite (calcium fluoride, CaF₂), likely with quartz and host-rock minerals) — mineral

Purple fluorite-bearing matrix specimen

Fluorite (calcium fluoride, CaF₂), likely with quartz and host-rock minerals

Blue Quartz (Dumortierite Quartz) (Silicon Dioxide (SiO2) with Dumortierite inclusion [Al7BO3(SiO4)3O3]) — mineral

Blue Quartz (Dumortierite Quartz)

Silicon Dioxide (SiO2) with Dumortierite inclusion [Al7BO3(SiO4)3O3]

Yellow Quartz or Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz or Citrine Quartz

Silicon Dioxide (SiO2)

Amethyst (Geode/Cluster) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Geode/Cluster)

Silicon Dioxide (SiO2) with iron impurities

Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)

Pink Fluorite (Fluorite (Calcium Fluoride) - CaF2) — mineral

Pink Fluorite

Fluorite (Calcium Fluoride) - CaF2

Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Gabbro (Phaneritic Basic Igneous Rock) — igneous

Gabbro

Phaneritic Basic Igneous Rock

Gabbro (Gabbro) — igneous

Gabbro

Gabbro

Rough Diamond (Diamond (C - Carbon)) — gemstone

Rough Diamond

Diamond (C - Carbon)

Granite (Plutonic Igneous Rock) — igneous

Granite

Plutonic Igneous Rock

Rose quartz (Quartz, silicon dioxide (SiO₂), pink variety) — mineral

Rose quartz

Quartz, silicon dioxide (SiO₂), pink variety

Green Tourmaline (Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH))) — mineral

Green Tourmaline

Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH))

Pink quartz (likely rose quartz) (Quartz, silicon dioxide (SiO₂), commonly rose quartz colored by trace impurities and microscopic inclusions) — mineral

Pink quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), commonly rose quartz colored by trace impurities and microscopic inclusions

Polished pink-and-white quartz bead bracelet (Quartz (SiO₂), likely rose quartz and milky quartz; some orange beads may be iron-stained quartz or pale carnelian) — mineral

Polished pink-and-white quartz bead bracelet

Quartz (SiO₂), likely rose quartz and milky quartz; some orange beads may be iron-stained quartz or pale carnelian

Rose quartz heart (Quartz, silicon dioxide (SiO₂), pink variety) — mineral

Rose quartz heart

Quartz, silicon dioxide (SiO₂), pink variety

Polished fluorite sphere (Fluorite (calcium fluoride, CaF₂)) — mineral

Polished fluorite sphere

Fluorite (calcium fluoride, CaF₂)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst Quartz (Amethyst (SiO2 with Iron impurities)) — mineral

Amethyst Quartz

Amethyst (SiO2 with Iron impurities)

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

Amethyst

Amethyst (Silicon Dioxide - SiO2 with iron impurities)

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

Amethyst

Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)

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

Amethyst (Raw Quartz)

Silicon Dioxide (SiO2)

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

Amethyst (Quartz Variety)

Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)

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

Amethyst

Quartz (Silicon Dioxide, SiO2)

Gabbro (Phaneritic Mafic Igneous Rock) — igneous

Gabbro

Phaneritic Mafic Igneous Rock

Granite Cobble / Rounded Granite River Rock (Granite) — Igneous

Granite Cobble / Rounded Granite River Rock

Granite

Gabbro (River Cobble) (Gabbro (mafic intrusive rock)) — igneous

Gabbro (River Cobble)

Gabbro (mafic intrusive rock)

Picture Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with impurities

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities