Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary (Silicified Fossiliferous Chalcedony)
Browse sedimentary (silicified fossiliferous chalcedony) specimens identified by the Rock Identifier community.
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2), flavored by Nickel
mineral
Chrysoprase
Chalcedony (Silicon Dioxide, SiO2)
mineral
Jasper and Quartzite mix
Silicon Dioxide (SiO2) with impurities
sedimentary or metamorphic
Jasper (specifically variegated or swamp jasper beads)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Jasper (Banded Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Red Jasper
Red Jasper (variety of Chalcedony, SiO₂)
Mineral
Carnelian
Carnelian (a variety of Chalcedony, SiO2) colored by iron oxide
mineral
Carnelian (Chalcedony variety)
SiO2 (Silicon Dioxide)
Mineral
Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with impurities)
Mineral
Mexican Crazy Lace Agate
Silicon Dioxide (SiO2) with iron and aluminum inclusions
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Carnelian
Carnelian (Varietal of Chalcedony, SiO2 with Iron Oxide impurities)
mineral
Agate (Dyed High-Grade Polished Slice)
Silicon dioxide (SiO2), Chalcedony crystal variety
mineral
Hematite
Iron(III) oxide (Fe2O3)
Mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Chert (containing Flint and Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Chalcedony variety)
Silicon Dioxide (SiO2)
sedimentary
Carnelian
Carnelian (variety of Chalcedony, SiO2 with iron oxide impurities)
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Chert/Chunky Chalcedony)
Silicon Dioxide (SiO2)
mineral
Geode (Unbroken)
Silicon Dioxide (SiO2) usually as Microcrystalline Quartz or Chalcedony
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
sedimentary
Shiva Lingam
Cryptocrystalline Quartz (Jasper/Chalcedony) with Iron Oxide inclusions
sedimentary
Pink Botswana Agate
Silicon Dioxide (SiO₂), a cryptocrystalline variety of Quartz and Chalcedony
sedimentary
Jasper (specifically Picture Jasper or Landscape Jasper)
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
sedimentary
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)
mineral
Green Jasper (Heliotrope / Bloodstone variety)
Silicon Dioxide (SiO₂)
sedimentary
Chert (varieties: Flint or Chalcedony)
Microcrystalline silica (SiO2)
sedimentary
Chert (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Carnelian
Chalcedony (Silicon Dioxide, SiO2 with Iron Oxide impurities)
mineral
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Agate (specifically a small Chalcedony nodule)
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Banded Agate (with possible Chalcedony layers)
Silicon dioxide (SiO2)
sedimentary
Chert / Chalcedony (likely carnelian or flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert / Jasper / Agate (Chalcedony Group)
Microcrystalline Quartz (SiO2)
sedimentary
Thunderegg (Agate-filled Geode Node)
Silicon dioxide (SiO2) with various inclusions
sedimentary/igneous association
Banded Agate (Pink Chalcedony)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Jasper (Imperial Jasper style)
Silicon Dioxide (SiO2) with impurities
sedimentary
Dragon Blood Jasper
Epidote with Red Jasper inclusions (SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Chalcedony (Carnelian/Agate variety)
Silicon Dioxide (SiO2) with trace hematite/iron impurities
mineral