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

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

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium impurities

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

Emerald (Faceted Gemstone)

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

Pink quartz crystal cluster (Quartz (silicon dioxide, SiO₂), likely rose quartz or pale amethyst) — mineral

Pink quartz crystal cluster

Quartz (silicon dioxide, SiO₂), likely rose quartz or pale amethyst

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

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

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

Amethyst Quartz Crystal

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Rough Crystal) (Silicon Dioxide (SiO2)) — mineral

Amethyst (Rough Crystal)

Silicon Dioxide (SiO2)

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

Rough Quartz Crystal in Matrix

Silicon Dioxide (SiO2)

Amethyst Cluster Pendant (Silicon Dioxide (SiO2) - Quartz variety Amethyst) — gemstone

Amethyst Cluster Pendant

Silicon Dioxide (SiO2) - Quartz variety Amethyst

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

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Tiger's Eye (specifically Hawk's Eye or Multicolored Tiger's Iron) (Silicon Dioxide with Crocidolite inclusions (SiO2)) — mineral

Tiger's Eye (specifically Hawk's Eye or Multicolored Tiger's Iron)

Silicon Dioxide with Crocidolite inclusions (SiO2)

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

Quartz Crystal Matrix

Silicon Dioxide (SiO2)

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

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Raw amethyst crystal (Amethyst, purple quartz (SiO₂) colored mainly by iron impurities and irradiation) — mineral

Raw amethyst crystal

Amethyst, purple quartz (SiO₂) colored mainly by iron impurities and irradiation

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

Quartz crystal cluster

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

Honey-brown calcite crystal cluster (Calcite (CaCO₃), likely dogtooth or scalenohedral calcite) — mineral

Honey-brown calcite crystal cluster

Calcite (CaCO₃), likely dogtooth or scalenohedral calcite

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Druzy Quartz on Quartz Base (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Quartz Base

Silicon Dioxide (SiO2)

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

Emerald In Matrix

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

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

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Aquamarine (Beryl) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Aquamarine (Beryl)

Beryllium aluminum silicate (Be3Al2Si6O18)

Raw Emerald (Beryl (Be3Al2(SiO3)6) with Cr/V impurities) — mineral

Raw Emerald

Beryl (Be3Al2(SiO3)6) with Cr/V impurities

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Aquamarine (Beryl (Be3Al2Si6O18 with Fe2+ trace elements)) — Mineral

Aquamarine

Beryl (Be3Al2Si6O18 with Fe2+ trace elements)

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

Raw Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium)

Pink quartz crystal (likely rose quartz) (Quartz, silicon dioxide (SiO₂), possibly rose quartz) — mineral

Pink quartz crystal (likely rose quartz)

Quartz, silicon dioxide (SiO₂), possibly rose quartz

Quartz Crystal Cluster with Iron Stain (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster with Iron Stain

Silicon Dioxide (SiO2)

Quartz crystal cluster in matrix (Silicon dioxide (SiO2)) — mineral

Quartz crystal cluster in matrix

Silicon dioxide (SiO2)

Likely clear quartz crystal (possibly cut/polished quartz or glass imitation) (Quartz, silicon dioxide (SiO₂)) — mineral

Likely clear quartz crystal (possibly cut/polished quartz or glass imitation)

Quartz, silicon dioxide (SiO₂)

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Moss Agate (Silicon Dioxide (Chalcedony variety)) — mineral

Moss Agate

Silicon Dioxide (Chalcedony variety)

Amethyst stalactite slice pendant (Amethyst (紫 quartz), SiO₂, with concentric quartz/chalcedony and likely agate banding) — mineral

Amethyst stalactite slice pendant

Amethyst (紫 quartz), SiO₂, with concentric quartz/chalcedony and likely agate banding

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

Quartz crystal pendant

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

Aura Quartz (Pink/Magenta Aura Quartz) (Silicon Dioxide (SiO2) treated with vapor-deposited precious metals) — mineral

Aura Quartz (Pink/Magenta Aura Quartz)

Silicon Dioxide (SiO2) treated with vapor-deposited precious metals

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Quartz Crystal in Matrix

Silicon Dioxide (SiO2)

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

Quartz Crystal Cluster

Silicon Dioxide (SiO2)

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

Clear Quartz Crystal

Silicon Dioxide (SiO2), Quartz