Pyrite
Iron Sulfide (FeS2)
mineral
Category
Mineral And Glass
Browse mineral and glass specimens identified by the Rock Identifier community.
Learn about Mineral And Glass in the encyclopedia
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Clear Quartz
Silicon Dioxide (SiO2)
mineral
Rough Quartz (Smoky or Citrine variant)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Quartz Druzy
Crystalline Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium or Manganese
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Iron, or Manganese
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Sunkissed Quartz or Hematoid Quartz
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Chert (varietal: Flint/Jasper mix)
Hydrous Silica (SiO2)
sedimentary
Botryoidal Quartz Cluster (Druzy Stalactitic Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Geode (Cracked)
Quartz (Silicon Dioxide, SiO2)
sedimentary
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
igneous
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Opalite
Synthetic Opalite Glass (Silicon Dioxide)
mineraloid (man-made)
Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz (Dyed)
Silicon Dioxide (SiO2) with trace impurities
mineral
Quartz (Variety: Rose Quartz/Smoky Quartz mix)
Silicon Dioxide (SiO2)
mineral
Rough Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite or Limonite staining
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone with Iron Staining
Arenite with Limonite/Hematite inclusions (SiO2 + Fe2O3/FeO(OH))
sedimentary
Quartz Mix and Feldspar Group
Silicon Dioxide (SiO2) and Potassium Alumino-silicates (KAlSi3O8)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orange Aventurine
Quartz (SiO2) with Hematite or Goethite inclusions
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Peach Aventurine
Quartz variety (SiO2 + Hematite/Goethite inclusions)
mineral
Green Aventurine in Host Rock
Quartz (SiO2) with Fuchsite inclusions
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral