Chert (Common Opal variant)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Chert (Common Opal variant)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Common Opal/Agate inclusion)
Microcrystalline Quartz (SiO2)
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert Pebble with Quartz Veins
Microcrystalline Quartz (SiO2)
Chert (specifically Flint)
Microcrystalline Quartz (SiO2)
Chert (Yellow or Brown Jasper)
Microcrystalline Quartz (SiO2)
Chert (Novaculite Variety)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Engineer Quartz/Quartzite
SiO2 (Silicon Dioxide with binders)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Banded Agate (specifically Carnelian Agate slice)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Chert (Flint Pebbles)
Microcrystalline quartz (SiO2)
Chert (Basanite / Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (White Chert)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Gravel)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Jasper and Quartzite mix
Silicon Dioxide (SiO2) with impurities
Chert (Yellow/Tan)
Microcrystalline Quartz (SiO2)
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Banded Chert
Microcrystalline Quartz (SiO2)
Chert (specifically Gray/Tan Chert Node)
Microcrystalline Quartz (SiO2)
Chert (varietal: Jasper or Flint)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert (often called Flint for darker varieties)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert (Jasper/Flint variety)
Silicon dioxide (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Common Opal/Jasper variety)
Microcrystalline Quartz (SiO2) with hydration
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Chert (variously Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO₂)
Amber Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chalcedony (Grey/White Agate)
Silicon Dioxide (SiO₂)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Petrified Wood
Silicified Wood (SiO2)
Chert (Tan/Brown variety)
Chert (Silicon Dioxide, SiO2)
Chert / Flint Conglomerate
Silicified Sedimentary Breccia (primarily SiO2)