Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is Microcrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is microcrystalline quartz) specimens identified by the Rock Identifier community.
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Chalcedony Pebble / Rough Agate
Silicon Dioxide (SiO2)
mineral
Red Jasper (possibly banded)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Banded Agate (specifically Lace Agate type)
Silicon Dioxide (SiO2)
mineral
Polished red jasper pebble
Jasper, microcrystalline quartz (SiO₂) colored mainly by hematite/goethite
metamorphic
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide (SiO2) with iron oxide and other mineral impurities
sedimentary (chemical/biological origin)
Chalcedony (specifically Agate or Water-worn Quartzite)
Silicon Dioxide (SiO2)
mineral
Fluorite and Red Jasper
Fluorite (Calcium Fluoride, CaF2) and Red Jasper (Silicon Dioxide, SiO2)
mineral
Chalcedony (variations like Agate or Jasper)
Chalcedony (SiO₂ - microcrystalline quartz)
Mineral
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Carnelian
Carnelian (Silicon Dioxide, SiO2)
mineral
Jasper (specifically Brecciated or Agated Jasper)
Silicon Dioxide (SiO2) - Chalcedony with impurities
Mineral / Sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Agate (specifically Carnelian Agate or Sardagate)
Silicon dioxide (SiO2) - variety of chalcedony
mineral
Agate Nodule
Silicon dioxide (Chalcedony/Quartz), SiO2
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Polished carnelian jasper / brecciated jasper
Microcrystalline quartz (SiO₂), chalcedony with iron-oxide pigments and opaque jasper fragments
gemstone
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
sedimentary
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with Iron Hydroxide inclusions)
sedimentary
Yellow Jasper
Chalcedony (SiO2) with goethite or limonite inclusions
sedimentary
Jasper
Silicon Dioxide (SiO2)
mineral
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
sedimentary
Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Metamorphic Rock
Chert (specifically Jasper/Carnelian variety)
Microcrystalline quartz (SiO2)
sedimentary
Red Jasper (with Chert/Quartz)
Silicon Dioxide (SiO2)
sedimentary
Crazy Lace Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Agate Nodule (partially vuggy Quartz)
Silicon Dioxide (SiO2)
Mineral/Sedimentary
Quartz (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Polished red jasper beads
Jasper, microcrystalline quartz (SiO₂), colored mainly by iron oxides
mineral
Quartz Geode Fragment
Crystalline Silicon Dioxide (SiO2)
mineral
Agate Bookend / Quartz Geode
Silicon Dioxide (SiO2)
mineral
Flint
Microcrystalline Quartz (SiO2)
sedimentary
Banded Agate (specifically Botswana Agate appearance)
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Agate Geode Nodule
Chalcedony / Quartz (SiO2)
mineral
Red jasper (likely tumbled)
Jasper, microcrystalline quartz/chalcedony (SiO₂), colored mainly by iron oxides
mineral
Red Jasper
Argillaceous microcrystalline quartz (SiO2 with Fe2O3 inclusions)
sedimentary
Flint
Microcrystalline Quartz (SiO2)
sedimentary
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
sedimentary
Flint Pebble
SiO2 (Microcrystalline Quartz / Chalcedony)
sedimentary