Apricot Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Microcrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a microcrystalline quartz) specimens identified by the Rock Identifier community.
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Blue Lace Agate
Banded Chalcedony (Silica/Quartz), SiO₂
mineral
Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz (SiO₂), with iron-oxide and other mineral inclusions; exact variety cannot be confirmed from the image
mineral
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2
Mineral
Polished jasper pebble
Jasper (microcrystalline quartz, SiO₂)
sedimentary
Tumbled pink chalcedony (likely pink agate)
Chalcedony, microcrystalline SiO₂; variety of quartz
mineral
Chrysoprase
Chalcedony (cryptocrystalline SiO2 variety)
Mineral
Polished/tumbled brown jasper (likely weathered chert)
Microcrystalline quartz, SiO₂, with iron-oxide impurities
mineral
Yellow Jasper
Chalcedony (Silicon Dioxide, SiO2)
sedimentary
Chalcedony
Chalcedony (SiO₂)
Mineral
Polished brecciated jasper (likely picture jasper)
Silica-rich microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and clay inclusions
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Jasper
SiO2 (Silicon Dioxide)
mineral
Leopard Skin Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Mineral
Polished banded agate (likely petrified wood)
Microcrystalline quartz (SiO₂); possibly silicified wood
mineral
Red jasper (likely)
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
mineral
Dalmatian Stone
Aplite (often incorrectly called Dalmatian Jasper)
igneous
Brecciated Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Calcite (often sold as 'Mexican Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Quartz Pebble (Chert/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Jasper / Chert (river tumbled)
Microcrystalline Quartz (SiO2)
sedimentary
Blue Chalcedony (Blue Lace Agate variety)
Silicon Dioxide (SiO₂)
mineral
Yellow jasper (likely polished/tumbled)
Microcrystalline quartz, SiO₂, colored by iron oxides; exact identification is uncertain from the image
mineral
Tumbled carnelian
Carnelian, orange-red chalcedony (microcrystalline SiO₂)
mineral
Flint
Silicon dioxide (Microcrystalline Quartz / Chert)
sedimentary
Chalcedony (specifically Blue Chalcedony or Common Opal variety)
Silicon Dioxide (SiO₂)
mineral
Chalcedony (specifically Agate or Carnelian variety)
Cryptocrystalline Silica (SiO2)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Banded Agate (specifically Carnelian Agate slice)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Carnelian
SiO2 (Silicon Dioxide)
gemstone
Brecciated jasper
Jasper (microcrystalline quartz, SiO₂), likely iron-oxide-rich breccia
sedimentary
Chalcedony
Silicon Dioxide (SiO2)
mineral
Carnelian Agate/Jasper blend
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Jasper and Quartz Pebble
Silicon Dioxide (SiO2) microcrystalline quartz variety
sedimentary
Blue Lace Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Jasper (Green Jasper / Bloodstone variant base)
Silicon Dioxide (SiO2) with impurities of chlorite and iron oxides
sedimentary
Strawberry Quartz
Quartz (SiO2) with inclusions of Goethite or Hematite
Mineral
Green Calcite (Onyx Marble)
Calcium Carbonate (CaCO3)
mineral