Quartz Pebble (Chert/Chalcedony)
Silicon Dioxide (SiO2)
mineral
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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Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper
mineral
Polished orange agate or chalcedony
Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/agate
mineral
Banded Jasper (Chert)
Silicon Dioxide (SiO2) - variety of Chalcedony
Sedimentary Rock
Red Jasper (possibly)
Jasper (a variety of Chalcedony, SiO2)
Mineral
Carnelian
Carnelian (Silicon Dioxide - SiO2)
mineral
Tumbled carnelian agate
Carnelian, a reddish-orange variety of chalcedony (microcrystalline quartz, SiO₂)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Red Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Honey-colored chalcedony (rough agate/chert)
Microcrystalline quartz, SiO₂; likely chalcedony with iron-oxide staining
mineral
Jasper (Banded Argillite/Chert mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Banded Agate (specifically Gobi Eyes or Eye Agate)
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Tumbled brown quartz/chalcedony (probable)
Quartz, SiO₂; possibly brown chalcedony or jasper
mineral
Tumbled chalcedony (likely moss or plume variety)
Microcrystalline quartz, SiO₂
mineral
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (Flint)
Chert (Cryptocrystalline silicon dioxide, SiO2)
sedimentary
Blue Lace Agate (Chert/Chalcedony)
Silicon dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Agate Nodule / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
mineral
Banded Calcite (Green Onyx / Onyx-Marble)
Travertine / Calcite (CaCO3)
sedimentary
Tumbled jasper, likely brecciated or brown-green jasper
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral impurities
gemstone
Nephrite Jade
Nephrite
Mineral/Rock
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Tumbled chalcedony (likely moss or gray agate)
Microcrystalline quartz, SiO₂; chalcedony/agate variety
mineral
Tumbled translucent quartz or chalcedony fragment
Silicon dioxide, SiO₂; likely quartz/chalcedony
mineral
Jasper
Chalcedony (SiO2)
mineral
Chalcedony Bangle
SiO2
gemstone
Tumbled brown chalcedony (likely carnelian/agatesque material)
Microcrystalline quartz, SiO₂; chalcedony variety
mineral
Tumbled blue chalcedony
Chalcedony, microcrystalline quartz (SiO₂)
mineral
Chalcedony (Quartz Var.)
Silicon Dioxide (SiO2)
mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Yellow Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
Tumbled carnelian
Carnelian, orange-red chalcedony (microcrystalline SiO₂)
mineral
Tumbled yellow jasper
Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions
mineral
Tumbled banded agate beads
Agate, microcrystalline quartz (SiO₂), a variety of chalcedony
mineral
Sardonyx Cameo
Silicon Dioxide (SiO2) - variety Cryptocrystalline Quartz
Mineral
Yellow Jasper
Silicon Dioxide (SiO2) - variety Jasper
sedimentary
Chalcedony (Common Opal variant or Quartz)
Silicon Dioxide (SiO2)
mineral
Agate (or Chalcedony)
Silicon Dioxide (SiO2)
mineral