Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Igneous
Category
Mineral (Cryptocrystalline Quartz)
Browse mineral (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Quartz Vein in Sedimentary Rock
Silicon Dioxide (SiO2) with host Chert or Limestone
mineral
Quartz with Iron Stains
Quartz (SiO2) with iron oxide/hydroxide staining
Mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Quartz (SiO₂)
Mineral
Gold Ore in Quartz
Auriferous Quartz (Gold: Au; Quartz: SiO2)
Mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Strawberry Quartz (or Hematoid Quartz)
Silicon Dioxide (SiO2) with inclusions of Hematite or Goethite
mineral
Tiger's Eye (Blue/Golden mix)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Quartz (with inclusions / Sandstone fragment)
Silicon Dioxide (SiO2)
mineral
K2 Jasper (Beads)
Granodiorite with Azurite and Malachite
igneous
Auriferous Quartz (Gold-bearing Quartz)
Silicon Dioxide (SiO2) with Elemental Gold (Au)
mineral
Chert (specifically Flint or Jasper variant)
Chert (Siliceous rock composed of microcrystalline Quartz, SiO2)
sedimentary
Hag Stone (Banded Chert or Limestone with Borehole)
Microcrystalline Quartz (Chert) or Calciferous Siltstone (CaCO3/SiO2)
sedimentary
Quartz
Silicon dioxide (SiO₂)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Golden Healer Quartz
Silicon Dioxide (SiO2) with Ferruginous (Iron Oxide) inclusions
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Quartz / Quartzite
Quartz (Silicon Dioxide, SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz / Limestone Gravel
SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)
igneous and sedimentary mixture
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Jasper, possibly Brecciated Jasper or Ocean Jasper due to patterns and color
Silicon Dioxide (SiO2), a variety of Chalcedony
Sedimentary Rock
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)
mineral
Quartz (Milky/Opaque variety)
Silicon Dioxide (SiO2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral with metamorphic or sedimentary host
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Vein Rock
Quartz (Silicon Dioxide, SiO2)
igneous
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Mineral