Red Jasper (possibly Petrified Wood)
Silicon Dioxide (SiO2) with Hematite inclusions
Category
Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.
Red Jasper (possibly Petrified Wood)
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Jasper / Agate
Silicon dioxide (SiO2)
Chert
Microcrystalline quartz (SiO2)
Jasper or Agate (Chalcedony)
Silicon Dioxide (SiO2) with impurities
Quartz Pebble (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
Yellow Jasper
Jasper (variety of Quartz - SiO2)
Red Jasper
Jasper (Microcrystalline Quartz, SiO2)
Chalcedony (Common Opal/Chert variety)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Jasper pebble
Silicon Dioxide (SiO2 with iron oxide inclusions)
Red Jasper (Silicate Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Silicon dioxide (SiO2) with impurities
Red Jasper (with Quartz inclusion)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Jasper
Silicon dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
Red Jasper (Tumbled)
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper
Silicon dioxide (SiO2) with impurities
Jasper
Silicon Dioxide (SiO2) with impurities
Yellow Jasper (Chert)
Silicon Dioxide (SiO2)
Yellow Jasper
Chalcedony (SiO2 with iron oxide inclusions)
Jasper (Mookaite style)
Silicon Dioxide (SiO2) with iron and manganese inclusions
Jasper
Silicon dioxide (SiO2) with impurities
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
Jasper Geode
Silicon Dioxide (SiO2) with impurities
Jasper
Jasper (Silica/Quartz) - SiO2
Jasper
Silicon Dioxide (SiO2)
Banded Onyx (Calcite Marble)
Calcite (CaCO3) - Trap-rock or Cave Onyx
Jasper (Iron-stained Quartz)
Silicon dioxide (SiO2) with iron oxide inclusions
Jasper (specifically Chert/Ironstone)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Yellow Jasper
Silicon Dioxide with Hydrous Iron Oxide (SiO2 + FeO(OH))
Red Jasper
Jasper (Silica with Hematite impurities), SiO2
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Limonite inclusions
Jasper
Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)
Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Fancy Jasper (Mookaite style)
Silicon Dioxide (SiO2) with iron oxide impurities
Dendritic Agate (or Dendritic Opal)
SiO2 (for Agate), SiO2·nH2O (for Opal)
Blue Chalcedony Geode (with Quartz Druzy)
Silicon Dioxide (SiO2) - Microcrystalline variety of Quartz
Chert
Silicon dioxide (Microcrystalline Quartz, $SiO_2$)