Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Category
Mineral And Glass
Browse mineral and glass specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
sedimentary
Sandstone (Painted)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Iron-stained Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Quartz (specifically Citrine or Yellow Quartzite pebble)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Mineral
Quartz Crystal (specifically a milky or semi-translucent single crystal point)
Silicon Dioxide (SiO2)
mineral
Milky or Iron-Stained Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Druzy or Crystalline variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon dioxide (SiO2)
mineral
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky Quartz (Ferruginous Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz (Herkimer Diamond variant)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz / Quartzite Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Milky or Clear Chunk)
Silicon Dioxide (SiO2)
mineral
Adventurine (Green)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Jasper (likely Brecciated or Multi-colored)
Jasper (SiO2)
sedimentary
Granite
Phaneritic Plutonic Rock (High Silica content)
igneous
Milky Quartz (river pebble)
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orbicular Jasper (Ocean Jasper variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert with Quartz/Calcite Vein
Microcrystalline Silica (SiO2)
sedimentary
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Beach Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Chert (Chert Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (with Quartz Veining)
Microcrystalline Quartz (SiO2)
sedimentary