Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Category
Browse mineral (variety of chalcedony) specimens identified by the Rock Identifier community.
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper (Red/Brown)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper (likely Brown or Brecciated)
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper (possibly Mookaite)
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper (Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Tumbled brown translucent stone, likely quartz/jasper
Microcrystalline quartz (SiO₂), possibly iron-stained chalcedony or jasper
Carnelian (Tumbled Pebble)
Quartz (Variety: Carnelian, SiO2)
Quartz (Variety: Citrine or Tumbled Chalcedony)
Silicon Dioxide (SiO2)
Polished agate/jasper pebble
Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions
Chalcedony or Chert/Jasper with secondary mineral staining
SiO2 (for chalcedony/quartz) with possible secondary copper minerals (e.g., CuSiO3·nH2O for chrysocolla, Cu2(CO3)(OH)2 for malachite) or iron oxides/hydroxides.
Granodiorite
Granodiorite (Phaneritic intrusive igneous rock containing Plagioclase, Quartz, and Biotite/Amphibole)
Chert (often referred to as Flint or Jasper)
Chalcedony (SiO2) - Silicon Dioxide
Quartz Pebble (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Yellow Jasper
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
Red Jasper with Quartz
Silicon Dioxide (SiO2) with Hematite impurities
Red Jasper (with Chert/Quartz)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Jasper River Stone
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2)
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Jasper
Silicon dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron Oxide inclusions
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Breciated Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Yellow Jasper / Chert
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper and Quartz River Cobble
Silicon Dioxide (SiO2) with Hematite inclusions
Jasper
Chert (Silica: SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide impurities
Serpentine, likely a variety of Chrysoprase (green chalcedony) or a similar translucent green mineral.
Serpentine Group Minerals (e.g., Antigorite, Lizardite) or Chalcedony (SiO2) with nickel impurities for Chrysoprase green.
Jasper and Chalcedony Pebble
Silicon Dioxide (SiO2)
Polished Agate or Jasper-Agate
Silicon Dioxide (SiO2)
Green Onyx (Agate)
Silicon Dioxide (SiO2)