Red Jasper (possibly with Quartz or Hematite)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary or metamorphic
Category
Sedimentary Rock (Technically A Variety Of Chalcedony)
Browse sedimentary rock (technically a variety of chalcedony) specimens identified by the Rock Identifier community.
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Tumbled Agate
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2) with impurities
mineral
Red Carnelian (Tumbled)
SiO2 (Silicon Dioxide) - variety of Chalcedony
mineral
Granite (specifically the Ubatuba variety)
Phaneritic Igneous Rock (Granodiorite/Monzogranite)
igneous
Polished red jasper and carnelian-like stones
Jasper: microcrystalline quartz (SiO₂), commonly colored by iron oxides; translucent piece may be carnelian, a chalcedony variety
mineral
Satin Spar Selenite
Gypsum (CaSO4·2H2O)
mineral
Tumbled Chalcedony
Quartz (Silicon Dioxide - SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
sedimentary
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2)
sedimentary
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Red Jasper (Chert)
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Tumbled jasper or chert
Microcrystalline quartz (SiO₂), likely opaque chalcedony/jasper
mineral
Tumbled jasper
Microcrystalline quartz (chalcedony), predominantly SiO₂, with iron-oxide inclusions
igneous
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Jasper (specifically Yellow or Bumblebee-like Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Red jasper (likely tumbled or polished)
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides
mineral
Tumbled amber-colored agate or chalcedony
Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/agate
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
Mineral
Red Jasper
Silicon Dioxide (SiO2)
sedimentary
Red Jasper
Jasper (Silica/Silicon Dioxide, SiO2 plus iron inclusions)
sedimentary
Banded Agate
Silicon dioxide (SiO2) - variety of Chalcedony
sedimentary
Agate (Moss or Green Agate)
Silicon Dioxide (SiO2)
mineral
Tumbled jasper (likely red/brown jasper)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides
mineral
Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Banded Agate
Silicon Dioxide (SiO2)
mineral
Agate
Silicon dioxide (SiO2)
mineral
Tumbled carnelian (orange chalcedony)
Carnelian, a microcrystalline quartz variety; SiO₂, commonly colored by dispersed iron oxides
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Igneous Rock
igneous
Agate (Carnelian-Blue Agate mix)
Silicon Dioxide (SiO2)
mineral
Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz (SiO₂), commonly called orbicular jasper or ocean jasper
mineral
Yellow Chalcedony (Agate or Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese/Iron inclusions
mineral
Yellow Jasper
Silicon dioxide (SiO2)
sedimentary
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Agate
Chalcedony (cryptocrystalline variety of Quartz, SiO2)
mineral
Dendritic Agate or Tree Agate
Silicon Dioxide (SiO2) with impurities of manganese or iron oxide
mineral
Jasper with Quartz Veins
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary