Chert (Flint)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (artificial) specimens identified by the Rock Identifier community.
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (often called Flint when found in chalk)
Microcrystalline Quartz (SiO2)
Gastropod Fossil (Snail Internal Cast)
Class Gastropoda (Steinkern)
Chert (Tan/Grey variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Field-collected Arrowhead-shaped Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Green Jasper
Jasper (Silicates, SiO2)
Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Jasper/Common Opal mix)
Microcrystalline Quartz (SiO2)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Chert (Jasper type)
Microcrystalline Quartz (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert with Desert Varnish
Cryptocrystalline Quartz (SiO2) with Manganese/Iron oxide coating
Jasper
Silicon Dioxide (SiO2) - Opaque Chalcedony
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2)
Chert (Yellow/Brown variety)
Chert (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
Chert (Red Jasper)
Silicon Dioxide (SiO2)
Banded Calcite (Green Onyx)
Calcium Carbonate (CaCO3)
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Yellow Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions), SiO2
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Ironstone Concretion / Limonite Node
Goethite and Limonite (FeO(OH) nH2O)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Banded)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Leopard Skin Jasper
Silicon Dioxide (SiO2) with impurities
Chert Pebble
Microcrystalline silica (SiO2)
Jasper
Silicon dioxide (SiO2)
Leopard Skin Jasper
Silicon Dioxide (SiO2) with various inclusions
Geode (Unopened)
Crystalline Quartz Geode (SiO2)
Chert (Basanite / Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Fossiliferous)
Silicon dioxide (SiO2)
Chert (often found as Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
African Turquoise (Jasper)
Silicon Dioxide (SiO2) - Macro-crystalline Quartz with inclusions
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
Jasper
Silicon dioxide (SiO2)
Chert (Pink Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions