Zebra Jasper
Silicon dioxide (SiO2) with various impurities
Sedimentary
Category
Sedimentary (Secondary Classification: Cryptocrystalline Quartz)
Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Secondary Classification: Cryptocrystalline Quartz) in the encyclopedia
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Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (Chert/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Sedimentary
Agate (Carnelian-Blue Agate mix)
Silicon Dioxide (SiO2)
mineral
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (Flint variety)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert / Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Petrified Wood
Silicified Wood (primarily SiO₂ - Silicon Dioxide)
metamorphic
Chert (often referred to as Flint)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline context of Quartz (SiO2)
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Chert with Crinoid Fossil Impression
Microcrystalline Quartz (SiO2) with Crinoidea fossil impression
sedimentary
Lepidolite in Quartz Matrix
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (and Chert Breccia)
Silicon Dioxide (SiO2)
sedimentary
Smoky Quartz
Smoky Quartz (SiO2)
mineral
Chert (specifically Flint Arrowhead)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (Chert / Flint)
Silicon dioxide (SiO2) - Microcrystalline quartz
sedimentary
Yellow Chert (Chert / Jasper)
Silicon Dioxide (SiO2 / Microcrystalline Quartz)
sedimentary
Chert (Flint/Jasper)
Silicon dioxide (SiO2) - Microcrystalline quartz
sedimentary
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
Green Chalcedony (likely Chrysoprase or Green Onyx)
Silicon Dioxide (SiO2) with trace nickel or chromium inclusions
mineral
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Fe2O3 (Hematite) inclusions
sedimentary
Oolitic Chert
Oolitic Microcrystalline Quartz (SiO2)
sedimentary
Carnelian
Carnelian (SiO2 - Silicon Dioxide)
mineral
Chalcedony (Botryoidal/Chalcedony Rose)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
sedimentary
Chert (White Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (often called Flint in this variation)
Silicon dioxide (SiO2) - Microcrystalline quartz
sedimentary
Dyed Blue Agate Slice
Silicon Dioxide (SiO2) with artificial dye
mineral
Quartzite with Iron Hydroxide Staining
Quartzite (primarily SiO2) with Limonite/Goethite staining
metamorphic
Jasper with Quartz Veins
Silicon Dioxide (SiO2) with impurities
sedimentary
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)
sedimentary
Heliotrope (Bloodstone)
Cryptocrystalline Quartz (SiO2) with inclusions of Hematite (Fe2O3)
mineral
Jasper (Green Jasper / Moss Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (Agate/Blue Quartzite)
Silicon Dioxide (SiO2)
mineral
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Banded Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Paleoxylon (SiO2)
fossil
Quartz with Iron Oxide
Silicon Dioxide (SiO2) with Fe2O3 inclusions
mineral
Druzy Quartz on Agate/Chert
Silicon Dioxide (SiO2)
mineral