Jasper (specifically Chert/Ironstone)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Jasper (specifically Chert/Ironstone)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Ocean Jasper
Spherulitic Chalcedony (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Polished red jasper
Jasper, opaque microcrystalline quartz (SiO₂) colored mainly by iron oxides
Quartz
Quartz (Silicon Dioxide, SiO2)
Chert (specifically Brown Chert or Jasper)
Microcrystalline Quartz (SiO2)
Pink Granite
Intrusive Igneous Rock (high K-feldspar content)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (beads)
SiO2 (Silicon Dioxide)
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
Aventurine
Quartz (Variety Aventurine), SiO2
Granite
Granite
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Sandstone (Ferruginous)
Arenite (Iron-rich)
Aragonite (variety 'Flos Ferri')
Aragonite (CaCO3)
Jasper
Microcrystalline Quartz (SiO2)
Red Jasper Pebble
Microcrystalline Quartz (SiO2)
Smoky quartz
Quartz (SiO₂), naturally irradiated brown variety
Quartz (Rosy/Clear variety)
Silicon Dioxide (SiO2)
Pink Granite
Granite (Felsic Plutonic Rock)
Hawk's Eye (Blue Tiger's Eye)
Quartz (fibrous crocidolite variety)
Pink Granite
Granite (Felsic Plutonic Rock)
Moqui Marble (Concretion)
Iron Oxide Concretion
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Tumbled Agate and Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate/Carnelian pebbles)
Cryptocrystalline Quartz (SiO2)
Ocean Jasper
Spherulitic Chalcedony (SiO2)
White Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Banded Agate
Cryptocrystalline variety of Quartz (SiO2)
Amethyst
Amethyst (variety of Quartz, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Amethyst
SiO2 (Silicon Dioxide)
Quartz
Silicon Dioxide (SiO2)
Blue Celestine
Celestine (SrSO4)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Chert
Chert (SiO2)