Jasper
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Jasper
Microcrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
Faceted blue gemstone, likely aquamarine
Aquamarine—blue beryl, Be₃Al₂Si₆O₁₈; identification is uncertain from the image alone
Jasper with Quartz vein
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Polished ocean jasper (orbicular jasper)
Microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions
Jasper
Microcrystalline Quartz (SiO2)
Jasper
Silicon Dioxide (SiO2)
Dyed Imperial Jasper (Sea Sediment Jasper)
Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony
Red Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions
Poppy Jasper
Silicon Dioxide (SiO2) with Hematite and Iron Oxide inclusions
Dalmatian jasper
Dalmatian stone; commonly a leucocratic alkali-feldspar-rich igneous rock with arfvedsonite or aegirine inclusions
Banded Jasper
Silicon Dioxide (SiO2) with impurities
Dalmatian Jasper
Peralkaline Quartz Feldspar Porphyry
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Raw green beryl (likely aquamarine)
Beryl, Be₃Al₂Si₆O₁₈; blue-green variety is aquamarine
Jasper
Microcrystalline Quartz (SiO2) with impurities
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Dalmatian Jasper
Peralkaline rhyolite
Jasper (Multi-color Chert)
Silicon dioxide (SiO2)
Tumbled blue stone and polished red-brown stone
Likely sodalite or blue aventurine; red specimen possibly jasper or polished flint/chert
Jasper
Silicon dioxide (SiO2)
Tumbled red/orange jasper
Jasper, microcrystalline quartz (chalcedony; SiO₂) with iron-oxide impurities
Polished brecciated jasper
Brecciated chalcedony/quartz aggregate, chiefly SiO₂ with iron-oxide inclusions
Polished banded jasper pebble
Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and clay/mineral impurities
Quartz crystal cluster in matrix
Silicon dioxide (SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Polished orbicular jasper
Siliceous microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions
Dalmation Stone (Dalmation Jasper)
Peralkaline Rock with Feldspar and Arfvedsonite
Jasper with Agate Inclusions
Silicon Dioxide (SiO2) - variety of Quartz/Chert
Green Jasper
Silicon Dioxide (SiO2) with impurities
Polished ocean jasper (orbicular jasper)
Silicified volcanic rock; chiefly microcrystalline quartz/chalcedony (SiO₂), with iron oxides and other alteration minerals
Tumbled red jasper or mahogany obsidian
Microcrystalline quartz (SiO₂), likely jasper; alternative: volcanic glass (obsidian)
Jasper
Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)
Jasper
Chalcedony (SiO2)
Red Jasper (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper or Agate with Chlorite Inclusions
Silicon Dioxide (SiO2) with Chlorite group minerals
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide (SiO2) with impurities
Yellow Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
Polished jasper pebble
Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions