Rock Identifier

Community gallery

All rocks & minerals

Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Diamond (Carbon (C) - Native Element) — mineral

Diamond

Carbon (C) - Native Element

Yellow Diamond (Faceted) (Diamond (pure carbon) with nitrogen impurities, C) — mineral

Yellow Diamond (Faceted)

Diamond (pure carbon) with nitrogen impurities, C

Gold Nugget (or Gold Grain) (Native Gold (Au)) — mineral

Gold Nugget (or Gold Grain)

Native Gold (Au)

Opal (Hydrated Amorphous Silica (SiO2·nH2O)) — mineral

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Diamond (faceted) (Diamond (Pure Carbon, C)) — mineral

Diamond (faceted)

Diamond (Pure Carbon, C)

Diamond (Pure Carbon (C)) — mineral

Diamond

Pure Carbon (C)

$Diamond (or high-refractive faceted gemstone) (Carbon; C) — mineral$

Diamond (or high-refractive faceted gemstone)

Carbon; C

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Quartz (Clear Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Diamond (Faceted) (Carbon (C)) — mineral

Diamond (Faceted)

Carbon (C)

Diamond (Diamond (C)) — mineral

Diamond

Diamond (C)

Tumbled Stone Collection (Fluorite, Sodalite, Moss Agate, Amethyst/Charoite, and Grey Agate) (Silica (SiO2) and Calcium Fluoride (CaF2) based minerals) — mineral

Tumbled Stone Collection (Fluorite, Sodalite, Moss Agate, Amethyst/Charoite, and Grey Agate)

Silica (SiO2) and Calcium Fluoride (CaF2) based minerals

Chert (Nodule) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule)

Silicon Dioxide (SiO2)

Opalite (Synthetic Opalized Glass) (Synthetic Silicon Dioxide (SiO2) glass) — mineral

Opalite (Synthetic Opalized Glass)

Synthetic Silicon Dioxide (SiO2) glass

Sunstone (Plagioclase Feldspar (Na,Ca)(Al,Si)4O8) — mineral

Sunstone

Plagioclase Feldspar (Na,Ca)(Al,Si)4O8

Fluorite, Sodalite, and Rose Quartz collection (Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)) — mineral

Fluorite, Sodalite, and Rose Quartz collection

Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)

Goldstone and Aura Quartz (Cuprous Glass (Goldstone) and Titanium-coated SiO2 (Aura Quartz)) — Mineral/Glass Specimen

Goldstone and Aura Quartz

Cuprous Glass (Goldstone) and Titanium-coated SiO2 (Aura Quartz)

Mineral/Glass Specimen

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

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Howlite (Howlite (Ca2B5SiO9(OH)5)) — mineral

Howlite

Howlite (Ca2B5SiO9(OH)5)

Glauconite (Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2) — mineral

Glauconite

Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Anthracite Coal (Anthracite (Carbon-rich metamorphic sedimentary rock)) — sedimentary

Anthracite Coal

Anthracite (Carbon-rich metamorphic sedimentary rock)

Gypsum (Satin Spar/Desert Rose variety) (Calcium Sulfate Dihydrate (CaSO4·2H2O)) — mineral

Gypsum (Satin Spar/Desert Rose variety)

Calcium Sulfate Dihydrate (CaSO4·2H2O)

Red Sandstone (with possible iron oxide staining) (Sandstone (primarily Quartz with Hematite/Goethite cement)) — sedimentary

Red Sandstone (with possible iron oxide staining)

Sandstone (primarily Quartz with Hematite/Goethite cement)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Red Sandstone (Iron-rich) (Ferruginous Sandstone (SiO2 with Iron Oxides)) — sedimentary

Red Sandstone (Iron-rich)

Ferruginous Sandstone (SiO2 with Iron Oxides)

Limonite with Galena (FeO(OH)·nH2O (Limonite) and PbS (Galena)) — mineral

Limonite with Galena

FeO(OH)·nH2O (Limonite) and PbS (Galena)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

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

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Tiger's Eye (Silicon dioxide (SiO2) - Pseudomorph after crocidolite) — mineral

Tiger's Eye

Silicon dioxide (SiO2) - Pseudomorph after crocidolite

Banded Chert (Agate/Jasper blend) (Microcrystalline Quartz (SiO2)) — sedimentary

Banded Chert (Agate/Jasper blend)

Microcrystalline Quartz (SiO2)

Aventurine (Silicon dioxide with micas (SiO2 + K(Al,Cr)2AlSi3O(OH)2)) — metamorphic

Aventurine

Silicon dioxide with micas (SiO2 + K(Al,Cr)2AlSi3O(OH)2)

Blue Quartz (Dumortierite Quartz) (SiO2 with inclusions of AlAl6BSi3O18) — mineral

Blue Quartz (Dumortierite Quartz)

SiO2 with inclusions of AlAl6BSi3O18

Blue Kyanite (Kyanite (Al2SiO5)) — mineral

Blue Kyanite

Kyanite (Al2SiO5)

Peach Moonstone (Anorthoclase or Orthoclase Feldspar (K,Na)AlSi3O8) — mineral

Peach Moonstone

Anorthoclase or Orthoclase Feldspar (K,Na)AlSi3O8

Angelite (Anhydrite (Calcium Sulfate, CaSO4)) — mineral

Angelite

Anhydrite (Calcium Sulfate, CaSO4)