Petrified Wood
Silicified wood (primarily Quartz/Chalcedony, SiO2)
metamorphic
Category
Sedimentary (Silicified Fossiliferous Chalcedony)
Browse sedimentary (silicified fossiliferous chalcedony) specimens identified by the Rock Identifier community.
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Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
mineral
Fossiliferous Limestone
Fossiliferous Limestone
sedimentary
Fossiliferous Limestone
Fossiliferous Limestone
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Tumbled red jasper
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2)
mineral
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
sedimentary
Petrified Wood
Silicified Wood (SiO2 / Quartz pseudomorph after wood)
fossil
Fossil Coral
Phylum Cnidaria / Rugosa or Tabulata
fossil
Petrified Wood
Silicified Wood (mainly Quartz/Chalcedony, SiO2)
fossil
Petrified Wood
Silicified Wood (Silicon Dioxide - SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (Permineralized wood)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
metamorphic
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood (Agatized/Silicified Wood)
Silicified Wood (SiO2)
metamorphic
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
fossil
Petrified Wood
Silicified Wood (Quartzo-feldspathic fossil wood)
fossil
Petrified Wood
Silicified Wood (primarily Chalcedony or Quartz, SiO2)
mineral/sedimentary
Petrified Wood
Silicified Wood (primarily SiO₂ - Silicon Dioxide)
metamorphic
Petrified Wood
Silicified Wood / Fossilized Wood (SiO2)
sedimentary
Fossilized Brachiopod
Phylum Brachiopoda (General mineral composition: Calcite/CaCO₃ or Silica/SiO₂)
sedimentary
Dinosaur Bone (Gembone)
Silicified Dinosaur Bone (SiO2 replacing organic tissue)
sedimentary
Petrified Wood
Silicified wood (primarily Silicon Dioxide, SiO2)
sedimentary
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Tumbled yellow jasper or petrified wood fragment
Microcrystalline quartz (chalcedony), SiO₂, possibly iron-oxide-bearing jasper
mineral
Weathered agate or chalcedony nodule
Microcrystalline quartz (SiO₂), likely agate/chalcedony with iron-oxide staining
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
fossil
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Ocean Jasper
Orbicular Jasper / Variolitic Chalcedony (SiO2)
mineral
Petrified Wood
Silicified wood (Quartz/Chalcedony replacement of organic matter)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, formula: SiO2)
sedimentary