Red Jasper
Jasper (a variety of Chalcedony, SiO₂ with 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.
Learn about Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz) in the encyclopedia
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Lake Superior Agate
Silicon dioxide (chalcedony variety quartz)
sedimentary
Red Chalcedony (likely dyed)
Chalcedony (a variety of Quartz), SiO2
Mineral (Cryptocrystalline Quartz)
Chert (Pink/Red variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Carnelian Agate Nodule
Chalcedony (SiO2) with Iron Oxide inclusions
sedimentary
Blue Lace Agate
Chalcedony (SiO2)
mineral
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Carnelian
SiO2 (Silicon Dioxide)
gemstone
Chalcedony (Common Agate)
Cryptocrystalline Quartz (SiO2)
mineral
Tumbled orange chalcedony or quartzite
Microcrystalline quartz (SiO₂), possibly iron-stained chalcedony; exact identification requires testing
mineral
Dyed Blue Agate
Silicon dioxide (SiO2) with artificial pigment
mineral
Jasper (Red Jasper)
Jasper (Silicon Dioxide, SiO2)
mineral
Banded Agate (specifically Lake Superior Agate style)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
sedimentary
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Tumbled carnelian (likely)
Carnelian, orange-red variety of cryptocrystalline silica (SiO₂), chalcedony
gemstone
Agate in Rhyolite
Silicon Dioxide (Quartz/Chalcedony) in Volcanic Rock matrix
igneous
Moss Agate
SiO2 (Silicon Dioxide) with dendritic inclusions
Mineral
Jasper or Agate Nodule
SiO2
mineral
Ocean Jasper
Orbicular Jasper / Chalcedony (SiO2)
Mineral
Tumbled Black Stone
Unknown, possibly Obsidian, Onyx, or Tourmaline
igneous or mineral
Chalcedony Geode Part (Agate/Quartz)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate and Carnelian varieties)
Silicon Dioxide (SiO2)
mineral
Agate and Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Polished green-and-white jasper (likely ocean jasper or orbicular jasper)
Microcrystalline quartz/chalcedony (SiO₂) with chlorite, epidote, calcite, and iron-oxide inclusions
metamorphic
Flint (or Chert)
Silicon dioxide (Microcrystalline Quartz, $SiO_2$)
sedimentary
Yellow Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Mineral
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Chert (Chert Nodule in Limestone)
Microcrystalline Quartz (SiO2)
sedimentary
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Agate
SiO2
mineral
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon dioxide (SiO2)
mineral
Banded Agate
Agate (chalcedony variety of Silicon Dioxide, SiO2)
mineral
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Mineral
Crazy Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Chalcedony with Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Agate Geode
Silicon Dioxide (SiO2) - Chalcedony variety
sedimentary
Polished carnelian (likely)
Carnelian, a reddish-orange cryptocrystalline quartz variety; SiO₂
gemstone
Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
sedimentary
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
igneous