Geode (Unopened)
Siliceous Geode (SiO2)
Category
Browse sedimentary (volcanic) specimens identified by the Rock Identifier community.
Geode (Unopened)
Siliceous Geode (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with inclusions of Chlorite or Actinolite
Red Jasper
Silica (Silicon Dioxide), Formula: SiO2 with Iron impurities
Geode (unopened)
Chert / Chalcedony Geode (SiO2)
Jasper Shard / Chert
Silicon dioxide (SiO2)
Jasper
Silicon dioxide (SiO2) with impurities
Jasper (Green variety)
Silicon Dioxide (SiO₂)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron Oxide inclusions
Tree Agate
Silicon Dioxide (SiO2) - Dendritic Agate/Chalcedony
Jasper with Chert
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
Orbicular Jasper (Eye Jasper / Kambaba-like pattern)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Yellow Jasper
Jasper (Silica-rich Microcrystalline Quartz, SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon dioxide (SiO2) with Iron inclusions
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Fancy Jasper (Bloodstone variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Geode Nodules / Chalcedony Geode
Silicon Dioxide (SiO2) - Amorphous to Cryptocrystalline Quartz
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
Jasper
Jasper (Silicon Dioxide, SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Red Jasper (Chert)
Silicon Dioxide (SiO2)
Turquoise (Green variety)
Hydrous phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
Green Jasper
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide impurities)
Jasper
Silicon dioxide (SiO2)
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
Quartz Geode
Crystalline Silicon Dioxide (SiO2) within a nodule
Red Jasper
Silicon Dioxide with Iron inclusions (SiO2 + Fe2O3)
Banded Chert or Agate
Silicon Dioxide (SiO2)
Jasper (Chocolate or Brown Jasper)
Silicon Dioxide (SiO2)
Chert (Common Opal/Agate inclusion)
Microcrystalline Quartz (SiO2)
Jasper
Cryptocrystalline Quartz (SiO2)
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Jasper with Hematite Inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
Zebra Jasper
Jasper (variety of Quartz/Chalcedony), SiO2
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Red Jasper (nodule)
Silicon Dioxide (SiO2) with Iron Oxide inclusions