Tumbled yellow chalcedony (likely honey agate or yellow quartz)
Microcrystalline quartz, SiO₂; coloration likely from iron oxides or included minerals
Category
Browse mineralish (variety of chalcedony) specimens identified by the Rock Identifier community.
Tumbled yellow chalcedony (likely honey agate or yellow quartz)
Microcrystalline quartz, SiO₂; coloration likely from iron oxides or included minerals
Tumbled jasper or chalcedony pebble
Microcrystalline quartz, SiO₂ (likely jasper/chalcedony)
Orange chalcedony (likely carnelian)
Microcrystalline quartz, SiO₂; iron-bearing chalcedony (carnelian)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Jasper and Chalcedony Composite
Silicon Dioxide (SiO2) microcrystalline quartz
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Carnelian
Silicon Dioxide (Chalcedony variety)
Bloodstone
Chalcedony (Variety Heliotrope), SiO2
Moss Agate
Silicon Dioxide (Chalcedony variety)
Lake Superior Agate
Silicon Dioxide (Chalcedony variety)
Carnelian
Quartz (chalcedony variety), SiO2
Lake Superior Agate
SiO2 (Quartz variety chalcedony)
Tumbled Agate (Dyed Blue)
Silicon Dioxide (Chalcedony variety)
Agate
Silicon dioxide (Chalcedony variety)
Lake Superior Agate
Silicon Dioxide (Chalcedony variety)
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Chrysoprase
Chalcedony (cryptocrystalline SiO2 variety)
Carnelian
Carnelian (SiO2) - Chalcedony variety
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Onyx
Onyx (a variety of Chalcedony, SiO₂)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Jasper
Jasper (a variety of Chalcedony, SiO2)
Chrysoprase
Chrysoprase (a variety of Chalcedony, SiO₂)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Red Jasper (possibly)
Jasper (a variety of Chalcedony, SiO2)
Chalcedony
Silicon Dioxide (SiO2)
Tumbled chalcedony (likely milky agate)
Microcrystalline quartz, SiO₂; chalcedony/agate variety
Agate
SiO2 (Chalcedony/Quartz)
Banded Agate
Chalcedony (SiO2) with impurities
Tumbled agate or chalcedony
Microcrystalline quartz (SiO₂), likely gray/brown chalcedony with subtle agate banding
Brown agate (chalcedony)
Microcrystalline quartz, SiO₂; likely iron-stained chalcedony
Polished banded agate (likely petrified wood)
Microcrystalline quartz (SiO₂); possibly silicified wood
Red jasper (likely)
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
Jasper
Silicon dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Jasper
SiO2 (Silicon Dioxide)
Tumbled jasper, likely picture jasper or brecciated jasper
Microcrystalline quartz (SiO₂), chiefly chalcedony with iron-oxide pigments
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Carnelian
Carnelian (Silicon Dioxide, SiO2)