Quartz Geode with Calcite
Silicon Dioxide (SiO2) and Calcium Carbonate (CaCO3)
Mineral/Geode
Category
Mineral Geode
Browse mineral geode specimens identified by the Rock Identifier community.
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Chalcedony Geode
Chalcedony (SiO2) within a geode structure
Mineral Geode/Sedimentary or Volcanic related
Quartz Geode
Silicon Dioxide (SiO2)
sedimentary
Quartz geode nodule (possibly chalcedony)
Silica, SiO₂; quartz or microcrystalline quartz (chalcedony)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in a Geodic Concretion
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
mineral
Blue Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Celestite (Blue Celestine)
Celestine (Strontium Sulfate, SrSO4)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
sedimentary
Geode
Crystalline Quartz in Sedimentary Matrix (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) within a geode structure
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz Geode
Quartz (Silicon Dioxide, SiO2)
Mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Geode
Quartz / Chalcedony nodule with mineralized cavity
sedimentary
Geode
Crystalline Quartz (SiO2) within a nodule
sedimentary
Quartz Geode
SiO2 (Silicon Dioxide)
sedimentary
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
mineral
Geode
Quartz / Chalcedony nodule
sedimentary
Geode (Unopened)
SiO2 (Quartz-filled Sedimentary Nodule)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) within a geode
mineral
Geode Nodules / Keokuk Geode
Quartz / Chalcedony Geode (SiO2)
sedimentary
Geode
Quartz / Chalcedony nodule
sedimentary
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Geode
Quartz nodule / Chalcedony-lined cavity
sedimentary
Geode with Quartz Crystals
SiO2 (Silicon Dioxide) in a geode formation
Sedimentary/Igneous (depending on host rock)
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Geode
Silicon dioxide (Quartz/Chalcedony) concretion
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Celestine (or Celestite) on Matrix
Celestine (SrSO4)
mineral
Geode or Concretion
Silica-based Concretion / Quartz Geode
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Geode with Chalcedony
Silicon Dioxide (SiO2) in Geode Form
sedimentary
Geode
Quartz nodule / Chalcedony-lined cavity
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral