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

Fluorite (Polished Point/Tower) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Polished Point/Tower)

Calcium Fluoride (CaF2)

Amphibolite with Hornblende (Amphibole-rich Metamorphic Rock (Ca2(Mg,Fe)5Si8O22(OH)2)) — metamorphic

Amphibolite with Hornblende

Amphibole-rich Metamorphic Rock (Ca2(Mg,Fe)5Si8O22(OH)2)

Granitic Pegmatite (Granitic Pegmatite (principally Quartz, Feldspar, and Mica)) — igneous

Granitic Pegmatite

Granitic Pegmatite (principally Quartz, Feldspar, and Mica)

Greenstone / Graywacke (Metagraywacke (Chlorite-grade schistose rock)) — metamorphic

Greenstone / Graywacke

Metagraywacke (Chlorite-grade schistose rock)

Granitic Pegmatite (Coarse-grained Granite (KAlSi3O8 + SiO2)) — igneous

Granitic Pegmatite

Coarse-grained Granite (KAlSi3O8 + SiO2)

Pegmatitic quartz–feldspar rock with mica (Granitic pegmatite; mainly quartz (SiO₂), feldspar, and biotite/muscovite mica) — igneous

Pegmatitic quartz–feldspar rock with mica

Granitic pegmatite; mainly quartz (SiO₂), feldspar, and biotite/muscovite mica

Digital Multimeter (Synthetic Object) (Digital Multimeter (DMM)) — not a rock

Digital Multimeter (Synthetic Object)

Digital Multimeter (DMM)

Agate Slice (Carnelian Agate) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Agate Slice (Carnelian Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Rough Green Fluorite (Fluorite (Calcium Fluoride - CaF2)) — mineral

Rough Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Green Calcite (Calcite (CaCO3)) — mineral

Green Calcite

Calcite (CaCO3)

Blue Quartz (specifically Dumortierite Quartzite) (Silicon Dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)) — metamorphic

Blue Quartz (specifically Dumortierite Quartzite)

Silicon Dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)

Blue Quartz (Dumortierite Quartz) (SiO2 containing inclusions of Dumortierite [Al7(BO3)(SiO4)3O3]) — metamorphic

Blue Quartz (Dumortierite Quartz)

SiO2 containing inclusions of Dumortierite [Al7(BO3)(SiO4)3O3]

Pink Sapphire (Corundum (Al2O3 with trace Chromium and Iron)) — mineral

Pink Sapphire

Corundum (Al2O3 with trace Chromium and Iron)

Sunstone (Oligoclase or Andesine (Plagioclase Feldspar) - (Ca, Na)((Al, Si)2Si2O8)) — mineral

Sunstone

Oligoclase or Andesine (Plagioclase Feldspar) - (Ca, Na)((Al, Si)2Si2O8)

White Sapphire (Corundum (Al2O3)) — mineral

White Sapphire

Corundum (Al2O3)

Jadeite (Jade) (Jadeite; NaAlSi2O6) — metamorphic

Jadeite (Jade)

Jadeite; NaAlSi2O6

Blue Quartz (Silicon Dioxide (SiO2) with microscopic inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with microscopic inclusions

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

Lepidolite

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

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Fluorite in Matrix (Fluorite (CaF2) within a host rock matrix) — Mineral

Fluorite in Matrix

Fluorite (CaF2) within a host rock matrix

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Tumbled pink-and-white quartz (Quartz, silicon dioxide (SiO₂), likely rose quartz mixed with milky quartz) — mineral

Tumbled pink-and-white quartz

Quartz, silicon dioxide (SiO₂), likely rose quartz mixed with milky quartz

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Pink Feldspar (Orthoclase Feldspar (KAlSi3O8)) — mineral

Pink Feldspar

Orthoclase Feldspar (KAlSi3O8)

Pegmatite (likely Granitic Pegmatite) (Pegmatite (a coarse-grained igneous rock, often with granitic composition)) — igneous

Pegmatite (likely Granitic Pegmatite)

Pegmatite (a coarse-grained igneous rock, often with granitic composition)

Sapphire (Corundum variety) (Sapphire (Al₂O₃)) — Mineral

Sapphire (Corundum variety)

Sapphire (Al₂O₃)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Emerald (Beryl (variety Emerald), Be3Al2Si6O18 with Cr and/or V) — Mineral

Emerald

Beryl (variety Emerald), Be3Al2Si6O18 with Cr and/or V

Pink-and-green quartz-rich rock, likely rose quartz with epidote/serpentine (Quartz (SiO₂), variably colored by iron, with possible epidote, chlorite, or serpentine inclusions) — mineral

Pink-and-green quartz-rich rock, likely rose quartz with epidote/serpentine

Quartz (SiO₂), variably colored by iron, with possible epidote, chlorite, or serpentine inclusions

Agate Geode Slice (Silicon Dioxide (SiO2) with trace elements) — sedimentary

Agate Geode Slice

Silicon Dioxide (SiO2) with trace elements

Zircon (Zircon (ZrSiO4)) — Mineral

Zircon

Zircon (ZrSiO4)

Corundum (Corundum (Al2O3)) — Mineral

Corundum

Corundum (Al2O3)

Kunzite (Spodumene (LiAlSi2O6), variety Kunzite) — Mineral

Kunzite

Spodumene (LiAlSi2O6), variety Kunzite

Opalite (Man-made Glass) (Fused glass (typically made of dolomite and metal opacifiers)) — Man-made Material / Glass

Opalite (Man-made Glass)

Fused glass (typically made of dolomite and metal opacifiers)

Man-made Material / Glass

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Banded Gneiss (Gneiss (pronounced 'nice')) — metamorphic

Banded Gneiss

Gneiss (pronounced 'nice')

Turquoise (Turquoise (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Turquoise (CuAl6(PO4)4(OH)8·4H2O)

Quartz (various varieties) (SiO₂ (Silicon Dioxide)) — Mineral

Quartz (various varieties)

SiO₂ (Silicon Dioxide)

Sapphire (Corundum) (Corundum (Al2O3), variety Sapphire) — Mineral

Sapphire (Corundum)

Corundum (Al2O3), variety Sapphire

Sugilite (Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)) — Mineral

Sugilite

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)