Zebra Jasper
Silicon Dioxide (SiO2) - Macro-crystalline Quartz/Chert with impurities
sedimentary
Category
Sedimentary Rock (Technically Chert, A Microcrystalline Quartz)
Browse sedimentary rock (technically chert, a microcrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Technically Chert, A Microcrystalline Quartz) in the encyclopedia
View all →
Sandstone with Quartz Vein
Arenite with Crystalline Silica (SiO2)
sedimentary
Blue Quartz (Blue Aventurine)
Silicon Dioxide (SiO2) with inclusions (typically crocidolite or dumortierite)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Chert (Septarian Concretion/Nodule)
Microcrystalline silica (SiO2) with carbonate mineral veining
sedimentary
Polished River Jasper
Silicon Dioxide (SiO2) with iron and other mineral inclusions
sedimentary
Geode with Quartz/Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Kambaba Jasper
Stromatolite (Fossilized Algae)
sedimentary
Carnelian (Carnelian Agate)
Cryptocrystalline Quartz (SiO2 with Hematite impurities)
mineral
Druzy Quartz (on Quartzite or Chert)
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Chalcedony in Matrix
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (and its variety Flint)
Silicon Dioxide (SiO2) - Microcrystalline or cryptocrystalline Quartz
sedimentary
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Dragon Blood Jasper
Epidote-containing Quartz Chalcedony (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))
metamorphic
Jasper
Jasper (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2) with iron impurities
sedimentary
Chert Breccia
Brecciated Chert (Sedimentary Rock)
sedimentary
Shale or Argillite
Shale (sedimentary) / Argillite (metamorphic)
Sedimentary or Metamorphic (low-grade)
River Cobble (Phyllite or Quartzite)
Metasedimentary Rock (often containing SiO2 or KAl2(AlSi3O10)(OH)2)
metamorphic
Agate
Chalcedony (cryptocrystalline variety of Quartz, SiO2)
mineral
Chert
Sedimentary Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Chert (Cherty Pebble)
Silicon Dioxide (SiO2)
sedimentary
Green Aventurine (likely)
Silicon dioxide (SiO2) with fuchsitemica inclusions
Mineral (specifically a variety of Quartz)
Concretion with Quartz Veining
Septarian Concretion (CaCO3 / SiO2)
sedimentary
Picture Jasper
Silicon dioxide (SiO2)
sedimentary
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Dragon Blood Jasper
Quartz (SiO2) with Epidote and Piedmontite inclusions
sedimentary
Red Jasper
Microcrystalline Quartz (SiO2 with Iron Oxide impurities)
sedimentary
Quartz-Veined Mudstone
Argillaceous Mudstone with Quartz Veining
sedimentary
Dendritic Agate
Silicon Dioxide with Manganese or Iron Oxide inclusions (SiO2 + Mn/Fe)
mineral
Amber Flint (Chert)
Cryptocrystalline Quartz (Silicon Dioxide, SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Green Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Snowflake Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Chert (Yellow or Tan Chert)
Silicon Dioxide (SiO2)
sedimentary
Puddingstone (Gowganda Tillite/Lorrain Quartzite)
Jasper Conglomerate
sedimentary
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Jasper River Stone
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
sedimentary