Chert (specifically a variety like Flint or River Jasper with Iron Oxidation)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Mineral (Specifically A Cryptocrystalline Variety Of Quartz)
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Chert (specifically Flint or Chalcedony nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Carnelian
Carnelian (Silicon Dioxide: SiO2 with Iron Oxide impurities)
mineral
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Amethyst (Chevron Amethyst)
Amethystine Quartz (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
mineral
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
mineral
Gray Agate with Druzy Quartz Geode
Cryptocrystalline Quartz (SiO2)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
sedimentary
Strawberry Quartz
Quartz (SiO2) with inclusions of Goethite or Hematite
Mineral
Agate (specifically Lake Superior Agate style or Banded Chalcedony)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper)
Cryptocrystalline Quartz (SiO2) with inclusions
sedimentary
Agate (specifically Botswana or Lake Superior style chalcedony)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide (Hematite) inclusions
sedimentary
Pink Granite
Granite (Phaneritic Felsic Igneous Rock)
igneous
Chert (specifically Jasper or Flint variant)
Cryptocrystalline Quartz (SiO2)
sedimentary
Blue Calcite
Calcite (CaCO3)
mineral
Jasper
Cryptocrystalline Quartz (SiO2)
sedimentary
White Agate (resembling Bone Chalcedony)
Cryptocrystalline Quartz (SiO2)
mineral
Yellow Jasper
SiO2 (Silicon Dioxide)
sedimentary
Chert (specifically Yellow Jasper)
Sedimentary Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and magnesium inclusions
Mineral (Variety of Quartz/Chalcedony)
Chalcedony (Agate/Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Red Quartzite
Quartzite (primarily SiO2)
metamorphic
Rose Quartz
Silicon Dioxide with traces of titanium, iron, or manganese (SiO2)
mineral
Black Veined Jasper (Spiderweb Jasper)
Silicon Dioxide (SiO2)
sedimentary
Dyed Pink Agate Slice
Cryptocrystalline variety of Quartz (SiO2)
mineral
White Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Beach Pebble (likely Quartz or Chalcedony)
Silicon Dioxide (SiO2)
Mineral
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Banded Agate (specifically shades of Carnelian Agate)
Silicon Dioxide (SiO2)
mineral
Honey Calcite (Orange Onyx)
Calcium Carbonate (CaCO3)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral