Rock Identifier

Category

Crystal

Browse crystal specimens identified by the Rock Identifier community.

Learn about Crystal in the encyclopedia

Amethyst

Ametrine

Apophyllite

Aquamarine Crystal

Aquamarine Crystal

Aventurine

Blue Quartz

Brandberg Amethyst

Brandberg Amethyst

Cactus Quartz

Cathedral Quartz

Cathedral Quartz

Chevron Amethyst

Chevron Amethyst

Clear Quartz

Danburite

Quartz crystal cluster (Quartz (silicon dioxide, SiO₂), likely included or coated with chlorite and iron-oxide minerals) — mineral

Quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely included or coated with chlorite and iron-oxide minerals

Goethite pseudomorph after Pyrite (Goethite (FeO(OH)) pseudomorph after Pyrite (FeS2)) — mineral

Goethite pseudomorph after Pyrite

Goethite (FeO(OH)) pseudomorph after Pyrite (FeS2)

Phantom Quartz with Chlorite and Hematite inclusions (Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)) — mineral

Phantom Quartz with Chlorite and Hematite inclusions

Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)

Emerald in Matrix (Tumbled) (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — gemstone

Emerald in Matrix (Tumbled)

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Granite (Granite (interlocking crystals of quartz, feldspar, and mica)) — igneous

Granite

Granite (interlocking crystals of quartz, feldspar, and mica)

Honey quartz crystal cluster (Quartz, silicon dioxide (SiO₂), likely iron-stained or inclusion-rich quartz) — mineral

Honey quartz crystal cluster

Quartz, silicon dioxide (SiO₂), likely iron-stained or inclusion-rich quartz

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Fragment

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Dyed Quartz Crystals (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Quartz Crystals

Silicon Dioxide (SiO2) with artificial pigment

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

Rock Crystal Quartz

Silicon Dioxide (SiO2)

Chakra Crystal Bracelet (Mixed Mineral Assortment) — gemstone

Chakra Crystal Bracelet

Mixed Mineral Assortment

Quartz crystal (Quartz (silicon dioxide, SiO₂), likely a natural or lightly damaged crystal) — mineral

Quartz crystal

Quartz (silicon dioxide, SiO₂), likely a natural or lightly damaged crystal

Quartz crystal (Quartz (silicon dioxide, SiO₂), likely milky or drusy quartz) — mineral

Quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or drusy quartz

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Amethyst quartz crystal cluster (Quartz, silicon dioxide (SiO₂), purple variety amethyst) — mineral

Amethyst quartz crystal cluster

Quartz, silicon dioxide (SiO₂), purple variety amethyst

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

Amethyst Crystal Point

SiO2 (Silicon Dioxide with iron impurities)

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

Amethyst (Rough Crystal)

Silicon Dioxide (SiO2) with iron impurities

Emerald in Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

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

Chalcedony with Quartz Crystals

Silicon Dioxide (SiO2)

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Raw Emerald (Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)) — mineral

Raw Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Quartz (clear quartz/crystal quartz) (Quartz, silicon dioxide (SiO₂), trigonal crystal system) — mineral

Quartz (clear quartz/crystal quartz)

Quartz, silicon dioxide (SiO₂), trigonal crystal system

Quartz crystals on Basalt (SiO2 (Quartz) on Mafic Igneous Rock (Basalt)) — igneous

Quartz crystals on Basalt

SiO2 (Quartz) on Mafic Igneous Rock (Basalt)

Milky quartz (likely quartz crystal fragment) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (likely quartz crystal fragment)

Quartz, silicon dioxide (SiO₂)

Amethyst crystal cluster (Quartz, purple variety (SiO₂)) — mineral

Amethyst crystal cluster

Quartz, purple variety (SiO₂)

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

Clear Quartz Crystal (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Synthetic Sapphire and Ion-X Glass (Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass) — mineral

Synthetic Sapphire and Ion-X Glass

Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass

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

Clear Quartz (Faceted Crystal)

Silicon Dioxide (SiO2)

Clear quartz crystal (Quartz (silicon dioxide, SiO₂), likely milky or included rock crystal) — mineral

Clear quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or included rock crystal

Emerald in Matrix (Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6) — mineral

Emerald in Matrix

Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6

Diamond (likely facet or crystal shard) (Diamond (C)) — mineral

Diamond (likely facet or crystal shard)

Diamond (C)

Quartz Crystal Cluster in Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster in Matrix

Silicon Dioxide (SiO2)

Aquamarine (Beryl (Be3Al2Si6O18) with trace Iron (Fe2+)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18) with trace Iron (Fe2+)

Aquamarine (Beryl (Be₃Al₂Si‑₆O₁‑₈)) — mineral

Aquamarine

Beryl (Be₃Al₂Si‑₆O₁‑₈)

Emerald in Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities