Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
sedimentary
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.
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Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Jasper (Silica/Silicon Dioxide, SiO2 plus iron inclusions)
sedimentary
Polished jasper (likely brecciated or scenic jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
gemstone
Blue Chalcedony Cube
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Agate
Silicon dioxide (SiO2)
mineral
Polished agate/chalcedony slab
Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide inclusions
gemstone
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Ocean Jasper
Orbicular Jasper (variety of Chalcedony - SiO2)
Mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)
Mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Red jasper (likely rough jasper/chert)
Microcrystalline quartz (SiO₂), commonly colored by iron oxides
mineral
Chert (often called Flint or Chalcedony Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Red jasper pebble
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
mineral
Banded Agate (specifically Gobi Eyes or Eye Agate)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Banded Agate (Tumbled)
Agate (Variety of Chalcedony/Quartz), SiO2
mineral
Orbicular jasper (likely ocean jasper)
Silica-rich microcrystalline quartz/chalcedony with iron-oxide and other mineral inclusions; commonly classified as orbicular jasper
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Sedimentary
Chert (Chalcedony/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Carnelian (orange chalcedony)
Chalcedony, microcrystalline quartz (SiO₂), iron-colored variety
gemstone
Polished multicolored jasper
Jasper, an opaque microcrystalline variety of quartz (SiO₂), likely iron- and manganese-stained chert
mineral
Chalcedony (Yellow Chert / Agate)
Quartz (Silicon Dioxide - SiO2)
mineral
Jasper (brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony (SiO₂), colored by iron oxides and other impurities
mineral
Chert (or Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Tumbled jasper or chalcedony pebble
Microcrystalline quartz, SiO₂ (likely jasper/chalcedony)
mineral
Blue Lace Agate (Geode/Druzy variant)
Chalcedony (SiO2) with Quartz druzy
mineral
Chert (Flint Nodules)
Microcrystalline Quartz (SiO2)
sedimentary
Agate
Cryptocrystalline quartz (SiO2)
mineral
Tumbled chalcedony (likely carnelian or brown agate)
Microcrystalline quartz, SiO₂; chalcedony with iron-oxide coloration
gemstone
Flint
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper
Jasper (SiO2) with Hematite (Fe2O3) inclusions
sedimentary
Tumbled agate or chalcedony
Microcrystalline quartz (SiO₂), likely brown/orange chalcedony or agate
mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Quartz Geode Fragment
Crystalline Silicon Dioxide (SiO2)
mineral
Polished agate slice
Agate, a banded variety of chalcedony (microcrystalline SiO₂)
mineral