Chalcedony (Agate nodule fragment)
Silicon Dioxide (SiO2)
mineral
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.
Learn about Mineral (Specifically A Variety Of Chalcedony, Which Is Microcrystalline Quartz) in the encyclopedia
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Jasper (specifically Yellow or Picture Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Jadeite
Jadeite (NaAlSi2O6)
metamorphic
Carnelian
Quartz (Variety: Chalcedony, SiO2)
gemstone
Red Jasper
Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)
mineral
Polished white agate or chalcedony bead
Microcrystalline quartz (SiO₂), likely chalcedony/agate with iron-oxide staining or a brown mineral inclusion
gemstone
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) with varying mineral impurities
sedimentary
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Dragon Vein Agate
Chalcedony (Quartz) - SiO2
mineral
Grey Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Carnelian
Silicon dioxide (SiO2) with Iron Oxide impurities (Fe2O3)
mineral
Tumbled blue chalcedony (likely blue quartz/chalcedony)
Cryptocrystalline silica, SiO₂; likely chalcedony, possibly dyed or surface-coated
mineral
Agate Nodule / Weathered Agate
Silicon Dioxide (Chalcedony / Quartz, SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Chert / Chalcedony Blend
Microcrystalline Quartz (SiO2)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
Mineral
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
mineral
Carnelian
SiO2 (Variety of Chalcedony/Quartz)
gemstone
Agate with Quartz Druzy
Silicon Dioxide (SiO2) - Microcrystalline and Macrocrystalline varieties
mineral
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Blue Agate (Dyed)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Carnelian
Carnelian (a variety of Chalcedony) - SiO2
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Chalcedony
Silicon Dioxide (SiO2)
mineral
Brecciated Jasper
Silicon Dioxide (SiO2) with hematite and other mineral impurities
sedimentary
Brown chalcedony (likely carnelian/iron-stained quartz)
Microcrystalline quartz, SiO₂; brown coloration from iron oxides/hydroxides
mineral
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) - Microcrystalline Chalcedony
sedimentary
Chalcedony (Yellow/Honey variety)
Microcrystalline Quartz (SiO2)
mineral
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and magnesium inclusions
Mineral (Variety of Quartz/Chalcedony)
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Banded Agate (Jasper-Agate)
Silicon Dioxide (SiO2) - Chalcedony Variety
mineral
Milky Quartz
Silicon dioxide (SiO2)
mineral
Chert / Flint Nodular Fragment
Microcrystalline quartz (SiO2)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with iron oxide inclusions)
Mineral
Green Chalcedony (Batu Akik)
Silicon Dioxide (SiO2)
gemstone
Chalcedony (Yellow Chert / Agate)
Quartz (Silicon Dioxide - SiO2)
mineral
Quartz (Milky/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral