Tumbled jasper or jasper-rich chert
Microcrystalline quartz (SiO₂) with iron-oxide impurities
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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Chalcedony Pebble / Rough Agate
Silicon Dioxide (SiO2)
mineral
Chalcedony
Silicon dioxide (SiO2) - Microcrystalline quartz
mineral
Jasper (specifically Owyhee or Picture Jasper variety)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
mineral
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Dragon Blood Jasper
SiO2
mineral
Blue Chalcedony
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
mineral
Blue Lace Agate
Banded Chalcedony (SiO2)
mineral
Agate (or Chalcedony)
SiO2 (Silicon Dioxide) - a cryptocrystalline variety of quartz
Mineral
Chalcedony (Agate/Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (SiO2)
mineral
Honey Calcite (Orange Onyx)
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper (possibly)
Jasper (a variety of Chalcedony, SiO2)
Mineral
Tumbled chalcedony or agate pebble
Microcrystalline quartz (SiO₂), likely chalcedony with possible iron-oxide inclusions
mineral
Jasper (Banded Argillite/Chert mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Honey/brown agate (chalcedony)
Microcrystalline quartz, SiO₂; likely translucent agate or chalcedony
mineral
Red jasper (likely polished/chipped fragment)
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
mineral
Yellow Jasper
Silicon Dioxide (SiO2) - variety Jasper
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chalcedony
Silicon Dioxide (SiO2)
mineral
Geode with Quartz and possibly Jasper/Hematite
Quartz (SiO2) and Chalcedony (cryptocrystalline SiO2), possibly stained by iron oxides
Mineral/Sedimentary Geode
Fancy Jasper
Silicon dioxide (SiO2)
sedimentary
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
Chalcedony (specifically Agate or Common Opal variety)
Cryptocrystalline Silica (SiO2)
mineral
Chalcedony with Quartz Crystals
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate (or similar Chalcedony)
SiO2 (Silicon Dioxide)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz pebble (Agate / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate (Chert/Chalcedony)
Silicon dioxide (SiO2)
mineral
Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Chalcedony
Cryptocrystalline Quartz (SiO2)
Mineral
Quartz (chalcedony variety) or Limestone with Quartz Veins
SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)
Mineral or Sedimentary Rock (with mineral inclusions)
Banded Agate (specifically Botswana Agate appearance)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate / Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Banded Jasper (Chert)
Silicon Dioxide (SiO2) - variety of Chalcedony
Sedimentary Rock