Flint / Chert
Microcrystalline quartz (SiO2)
Category
Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.
Flint / Chert
Microcrystalline quartz (SiO2)
Swirled Agate Bead
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert (often called Flint or Jasper if reddish)
Microcrystalline Quartz (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
White Marble
Recrystallized Calcite (CaCO3)
Crushed Stone / Gravel
Aggregatus saxum (variable mineral composition)
Fossilized Shark Tooth (Eroded)
Carcharodon sp. or Otodus sp. fragment (likely)
Chert (often called Flint)
Chert (SiO2)
Chert (Black Chert or Flint)
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Chert (Flint / Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (Flint Arrowhead)
Silicon Dioxide (SiO2)
Black Chert River Stone
Cryptocrystalline Quartz (SiO2)
Chert (Flint Nodules)
Cryptocrystalline Quartz (SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite
Beach Pebble (Chalcedony / Chert)
Silicon Dioxide (SiO2)
Chert (Black Flint)
Silicon Dioxide (SiO2)
Chert
Microcrystalline quartz (SiO2)
Chert
Microcrystalline quartz (SiO2)
Red Sandstone
Arenite (Iron-rich)
Chert (with Limestone matrix)
Silicon dioxide (SiO2)
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (and/or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (variations include Flint/Jasper)
Cryptocrystalline Quartz (SiO2)
Breccia
Breccia
Chert / Jasper
Silicon Dioxide (SiO₂)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Green Chert or Jasper)
Microcrystalline Quartz (SiO2)
Fossilized Shark Tooth
Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Moissanite
Silicon Carbide (SiC)
Diamond
Carbon (C)
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
Graphite
Graphite (Carbon, C)
Chert (Flint)
Silicon Dioxide (SiO2)
Coquina (Fossiliferous Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Flint
SiO2 (Microcrystalline Quartz / Chert)
Pyrite
Iron Sulfide (FeS2)
Blue Goldstone
Synthetic glass with copper or cobalt/manganese inclusions
Blue Goldstone
Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)
Blue Goldstone
Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)