Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Tumbled jasper (likely red/brown jasper)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper (with Manganese or Iron inclusions)
Silicon Dioxide (SiO2)
Polished jasper
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions
Red jasper (likely brecciated jasper)
Microcrystalline quartz/chalcedony (SiO₂), iron-oxide stained
Jasper Conglomerate
Jasper Conglomerate (SiO2 matrix with varying mineral inclusions)
Tumbled quartz-rich pebble, likely jasper or chert
Microcrystalline quartz (SiO₂), possibly iron-stained jasper
Dalmatian Jasper
Peralkaline rhyolite
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
Polished black stone, likely black jasper or basalt
Most likely microcrystalline quartz (black jasper/chert), SiO₂; basalt is a plausible alternative
Jasper
Silicon Dioxide (SiO2)
Polished jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides and other impurities
Red Jasper (Beach Pebble)
Jasper (Cryptocrystalline Quartz, SiO2)
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyritic Rock (Dalmatian Stone)
Brecciated jasper (likely red-and-cream jasper)
Jasper, an opaque microcrystalline variety of quartz; primarily cryptocrystalline SiO₂ with iron-oxide staining and possible chalcedony/quartz veining
Ocean Jasper
Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Orbicular jasper (ocean jasper-like jasper)
Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay inclusions
Jasper with Quartz
Silicon Dioxide (SiO2) - Chalcedony variety
Polished dendritic jasper or agate
Microcrystalline quartz (chalcedony), SiO₂, with iron/manganese oxide dendrites and earthy inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper (var. Ocean or Polychrome Jasper)
Silicon Dioxide (SiO2) with iron and mineral inclusions
Brecciated Jasper
Silicon Dioxide (SiO2) with mineral impurities
Leopard Jasper
Microcrystalline Quartz (SiO2)
Green Jasper
Microcrystalline Quartz (SiO2)
Polished jasper
Jasper (microcrystalline quartz, SiO₂), likely brecciated or scenic jasper
Polished/tumbled brecciated jasper
Silica-rich microcrystalline quartz (chalcedony), commonly with iron-oxide minerals and assorted lithic fragments
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron inclusions
Jasper or Agate Nodule
SiO2
Jasper with Iron Staining
Silicon Dioxide (SiO2) with impurities
Green Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Red Jasper
Microcrystalline Quartz (SiO2) with iron impurities
Red jasper (likely brecciated jasper)
Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides
Ocean Jasper
Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)
Jasper with Iron Staining
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
Tumbled jasper (likely brown jasper)
Microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides
Polished brecciated jasper
Microcrystalline quartz (chalcedony), chiefly SiO₂, with iron-oxide and other mineral inclusions
Script Jasper
Silicon Dioxide (SiO2) with impurities
Zebra Jasper
Silicon Dioxide (SiO2)