White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Category
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
Quartzite
Quartzite (primarily SiO2)
Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Chert (variations include Flint/Jasper)
Cryptocrystalline Quartz (SiO2)
Chert / Pink Flint
Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (Nodular or Massive Variety)
Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Cryptocrystalline Quartz (SiO2)
Chert (specifically Yellow/Honey Jasper variety)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper variety)
Cryptocrystalline Quartz (SiO2)
Chert (variations include Flint/Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (or Flint)
Mocrocrystalline Quartz (SiO2)
Chert / Flint
Cryptocrystalline quartz (SiO2)
Chert (Black Chert/Flint)
Cryptocrystalline Quartz (SiO2)
Jasper and Quartzite mix
Silicon Dioxide (SiO2) with impurities
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Siltstone
Siltstone (primarily SiO2, Al2O3)
Sandstone
Arenite (SiO2, often with CaCO3 or Fe2O3 cement)
Blue Lace Agate
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Quartzite River Rock
Quartzite (SiO2)
Quartzite Pebble
Quartzite (primarily SiO2)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Sandstone (Quartzose)
Arenite (SiO2 based)
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Shale or Slate with Quartz Veins
Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Tree Agate
Silicon Dioxide (SiO2)
Flower Agate
Chalcedony (SiO2) with Scolecite/Opaque inclusions
Quartzite (Iron-stained)
Quartzite (SiO2)
Red Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
Banded Agate (specifically Black Sardonyx/Onyx variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Quartz Pebble
Silicon Dioxide (SiO2)