Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Category
Browse mineralish (variety of chalcedony) specimens identified by the Rock Identifier community.
Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Banded Agate
Agate (Silicon Dioxide, SiO2)
Carnelian
Carnelian (SiO2 with iron oxide impurities)
Green Jasper
Silicon Dioxide (SiO2) with impurities
Brown Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Red Jasper
Silicon dioxide with hematite impurities (SiO2 + Fe2O3)
Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Agate
Agate (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities), SiO2
Banded Agate (Gray/Brown)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (SiO2 with Iron Oxide impurities)
Red Jasper
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicate mineral - SiO2)
Red Jasper
Jasper (Silicon Dioxide with Hematite inclusions), SiO2
Yellow Jasper
Jasper (SiO2) with iron hydroxide inclusions
Agate
Silicon dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Fe2O3
Banded Agate
Agate (Silicon Dioxide - SiO2)
Red Jasper
Jasper (Silicon Dioxide) - SiO2
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Agate (Carnelian-like)
Chalcedony (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Red Jasper (in Quartz/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
Jasper pebble
Jasper (Silicon Dioxide, SiO2)
Red Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chalcedony (Quartz Pebbles)
Silicon Dioxide (SiO2)
Chalcedony
Silicon Dioxide (SiO2)
Black Onyx
Silicon Dioxide (SiO2)
Tumbled blue chalcedony or pale aquamarine-like quartz
Chalcedony (microcrystalline SiO₂), possibly blue quartz; visual identification is uncertain
Carnelian
Quartz (Variety: Chalcedony, SiO2)
Carnelian Agate
Silicon Dioxide (Chalcedony variety)
Carnelian
SiO2 (Variety of Chalcedony/Quartz)
Carnelian (Tumbled)
Carnelian (variety of Chalcedony, SiO2)
Red Jasper
Jasper (variety of Chalcedony), SiO2
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Agate
Agate (a variety of Chalcedony, SiO2)
Red Jasper
Jasper (a variety of Chalcedony, SiO₂)