Rock Identifier

Category

Crystal

Browse crystal specimens identified by the Rock Identifier community.

Dyed Quartz (imitating Emerald/Green Quartz) (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Quartz (imitating Emerald/Green Quartz)

Silicon Dioxide (SiO2) with artificial pigment

mineral
Quartz (Crystal/Druzy Quartz) (Quartz (SiO₂)) — Mineral

Quartz (Crystal/Druzy Quartz)

Quartz (SiO₂)

Mineral
Clear Quartz (or Rock Crystal) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Clear Quartz (or Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Mineral
Rose Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Rose Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Golden Sheen Obsidian (Obsidian (volcanic glass) with inclusions of gas bubbles and mineral crystals (e.g., hematite, magnetite) causing the sheen) — igneous

Golden Sheen Obsidian

Obsidian (volcanic glass) with inclusions of gas bubbles and mineral crystals (e.g., hematite, magnetite) causing the sheen

igneous
Citrine Quartz Crystal Cluster (Silicon Dioxide (SiO2) with iron impurities) — mineral

Citrine Quartz Crystal Cluster

Silicon Dioxide (SiO2) with iron impurities

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

mineral
Porphyritic Basalt (with Augite Crystals) (Porphyritic Mafic Volcanic Rock (Fe-Mg Silicates)) — igneous

Porphyritic Basalt (with Augite Crystals)

Porphyritic Mafic Volcanic Rock (Fe-Mg Silicates)

igneous
Clear Quartz (Rock Crystal) (Quartz (SiO₂)) — Mineral

Clear Quartz (Rock Crystal)

Quartz (SiO₂)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Satin Spar (Selenite) (Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O) — mineral

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

mineral
Pegmatite (Granitic Pegmatite) — igneous

Pegmatite

Granitic Pegmatite

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Herkimer Diamond (Quartz Crystal) (Silicon Dioxide (SiO2)) — mineral

Herkimer Diamond (Quartz Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Amethyst

Amethyst (SiO2 with Iron impurities)

mineral
Hemimorphite on Limonite Gossan (Hemimorphite (Zn4Si2O7(OH)2·H2O) on Limonite matrix) — mineral

Hemimorphite on Limonite Gossan

Hemimorphite (Zn4Si2O7(OH)2·H2O) on Limonite matrix

mineral
Celestine (Celestite) (Strontium sulfate (SrSO4)) — mineral

Celestine (Celestite)

Strontium sulfate (SrSO4)

mineral
Druzy Quartz on Chert/Chalcedony (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Chert/Chalcedony

Silicon Dioxide (SiO2)

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

Quartz (Clear / Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Obsidian (Volcanic Glass (SiO2 rich)) — igneous

Obsidian

Volcanic Glass (SiO2 rich)

igneous
Snowflake Obsidian (Hydrated Volcanic Glass (primarily SiO2) with Cristobalite inclusions) — igneous

Snowflake Obsidian

Hydrated Volcanic Glass (primarily SiO2) with Cristobalite inclusions

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Crystal Quartz)

Silicon Dioxide (SiO2)

mineral
Quartz (Milky/Crystal Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystal Variety)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

mineral