Quartz (pebble)
Quartz (SiO₂)
Category
Browse mineral, variety of chalcedony (microcrystalline quartz) specimens identified by the Rock Identifier community.
Quartz (pebble)
Quartz (SiO₂)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Jasper (SiO2) with iron hydroxide inclusions
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert (Black Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula: SiO2)
Blue Crackle Quartz (Dyed Fire Agate/Quartz)
Silicon Dioxide (SiO2) with artificial dye treatment
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Field Stone/Jasper variety)
Microcrystalline Quartz (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Titanium Quartz (Rough)
Titanium-included Silicon Dioxide (SiO2 + Ti)
Mixed Tumbled Stones (Mostly Agate, Jasper, and Quartz)
Silicon Dioxide (SiO2)
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert / Flint
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper
Silicon dioxide (SiO2)
Zebra Jasper (Zebra Stone)
Tumbled Silicon Dioxide (SiO2) with impurities
Rough Green Adventurine
Aventurine (Variety of Quartz, SiO2)
Blue Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2)
Banded Agate (Onyx variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert Nodule
Microcrystalline Quartz (SiO2)
Chert (Brown variety / Common Jasper)
Microcrystalline Quartz (SiO2)
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chalcedony (Agate/Blue Quartzite)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)