Iron-stained quartz fragment (probable quartzite or chert)
Quartz, SiO₂; possibly iron-oxide-stained microcrystalline silica
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Iron-stained quartz fragment (probable quartzite or chert)
Quartz, SiO₂; possibly iron-oxide-stained microcrystalline silica
Red Jasper
Silicon Dioxide (SiO2) - variety Jasper
Puddingstone (Jasper Conglomerate)
Conglomerate (specific type: Jasper Conglomerate or Hertfordshire Puddingstone)
Red jasper (likely brecciated jasper)
Microcrystalline quartz, SiO₂, colored mainly by iron oxides
Iron-stained jasper (likely orbicular/brecciated jasper)
Microcrystalline quartz, SiO₂, colored by iron oxides/hydroxides
Tumbled jasper, likely red/brown jasper
Microcrystalline quartz (chalcedony), SiO₂, colored chiefly by iron oxides
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Bloodstone (Heliotrope)
SiO2 (Cryptocrystalline Quartz / Chalcedony)
Jasper
Jasper (Silica/Silicon Dioxide, SiO2)
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper (brecciated or orbicular jasper)
Microcrystalline quartz (SiO₂), commonly mixed with hematite, goethite, chlorite, and other silicates
Chert (Jasper)
Silicon Dioxide (SiO2)
Picture Jasper
Silicon dioxide (SiO2)
Jasper (Red-Brown)
Silicon Dioxide (SiO2) with Iron Oxide impurities
Jasper (specifically Fancy Jasper or Bloodstone variety)
Silicon Dioxide (SiO2) with impurities (Iron oxides/silicates)
Yellow Jasper / Chert
Jasper (Silica/Quartz) - SiO2
Jasper
Silica (SiO2) with impurities
Banded chert or jasper pebble
Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay impurities
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Polychrome Jasper (Desert Jasper)
Silicon Dioxide (SiO2) with iron and mineral inclusions
Red jasper (likely polished/tumbled)
Jasper, microcrystalline quartz (SiO₂) colored by iron oxides
Jasper
Silicon dioxide (SiO2) with impurities
Leopard Skin Jasper
SiO2 (Microcrystalline Quartz with inclusions)
Banded Jasper / Yellow Jasper with Chlorite or Epidote inclusions
Silicon Dioxide (SiO2) with iron oxide and silicate impurities
Polished jasper carving or slab
Jasper, an opaque microcrystalline variety of quartz (SiO₂), likely iron-oxide-rich brecciated or orbicular jasper
Jasper
Agate/Jasper (Microcrystalline Quartz, SiO2)
Tumbled jasper (likely brown/yellow jasper)
Microcrystalline quartz, SiO₂, typically with iron-oxide and clay impurities
Jasper
Silicon dioxide (SiO2)
Red Jasper
SiO2
Red Jasper
SiO2 (Silicon Dioxide with Hematite inclusions)
Orbicular jasper (orbicular chert/jasper)
Silica-rich microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions
Green Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions
Red Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
Jasper
Microcrystalline Quartz (SiO2)
Chert (Mookaite style Jasper)
Microcrystalline Quartz (SiO2) with Hematite/Goethite inclusions
Chert (Jasper)
Silicon Dioxide (SiO2)
Kambaba Jasper
Stromatolite Jasper (Microcrystalline Quartz)
Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with iron oxide inclusions)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Brown Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions