Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse organic mineraloid and mineral specimens identified by the Rock Identifier community.
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Shungite
Non-crystalline carbon (Fullerenes / Carbon-60)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Yellow Jasper/Agatized Chert)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Amber Chert (Jasper)
Microcrystalline Quartz (SiO2)
Green Jasper
Silicon Dioxide (SiO2) with impurities of iron(II) silicate
Chert (Beach Pebble)
Microcrystalline Quartz (SiO2)
Black Jasper (Black Onyx substitute)
Silicon Dioxide (SiO2) with carbonaceous impurities
Granite
Granite (a felsic intrusive igneous rock)
Chert (Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (variations include Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (variations include Flint)
Sedimentary cryptocrystalline quartz (SiO2)
Chert / Flint
Silicon dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Light Grey / Flint variant)
Cryptocrystalline Quartz (SiO2)
Chert (Chert / Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Fossiliferous Limestone (with Crinoids)
CaCO3 (Calcium Carbonate)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Chert (specifically Tan Chert or Flint)
Silicon Dioxide (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Banded Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Novaculite variant)
Chert (Microcrystalline Quartz, SiO2)
Chert (specifically Flint or Chalcedony nodule)
Microcrystalline Quartz (SiO2)
Crushed Limestone
Sedimentary Calcium Carbonate (CaCO3)
Fossiliferous Limestone
Calcareous biomicrite / Calcium Carbonate (CaCO3)
Coquina / Shell Limestone
Coquina (Bioclastic Limestone)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Flint Pebbles)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint/Jasper)
Silicon Dioxide (SiO2)
Chert (specifically Flint)
Silicon Dioxide (SiO2)
Chert (Arrowhead variety)
Chert (SiO2)
Chert (Flint)
Microcrystalline Opaline Silica (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Silica, SiO2)
Chert (varietal Flint or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (variations include Flint or Jasper)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
Chert (often called Flint or Chalcedony Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Flint
Microcrystalline or cryptocrystalline quartz (SiO2)