Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Category
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Quartz (likely Herkimer Diamond style)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Red Jasper variety)
Silicon Dioxide (SiO2)
Chalcedony (Agate/Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon dioxide (SiO2)
Amethyst Geode
Amethyst (Silicon Dioxide), Formula: SiO2
Chert (Agatized)
Silicon dioxide (SiO2)
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Chalcedony (Common Opal variant or Chert/Flint)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Chert
Silicon dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Geode (Unopened)
Siliceous Concretion / Geode
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Grey Chalcedony (Agate)
Silicon Dioxide (SiO2)
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Agate Nodule (partially vuggy Quartz)
Silicon Dioxide (SiO2)
Chalcedony (Botryoidal Agate)
Silicon Dioxide (SiO2)
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
Chalcedony (Yellow Agate/Chert)
Silicon Dioxide (SiO2)
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
Chalcedony (Common Agate pebble)
Silicon Dioxide (SiO2)
Flint
Chert (Silicon dioxide, SiO2)
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Chalcedony (Moonstone-like Agate)
Silicon Dioxide (SiO₂)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
Chert (Arrowhead variety)
Chert (SiO2)
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Chalcedony (Agate/Chert)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)