Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Category
Sedimentary (Microcrystalline Quartz)
Browse sedimentary (microcrystalline quartz) specimens identified by the Rock Identifier community.
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Red Jasper with Quartz veins
Jasper (Silicon Dioxide, SiO2) with macrocrystalline Quartz veins
sedimentary
Red Jasper
Jasper (Silicon Dioxide with iron oxide inclusions), SiO2
mineral
Banded Agate (River Stone)
Agate (Silicon Dioxide - SiO2)
mineral
Red Jasper
Quartz (SiO2) with Iron Oxide impurities
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Quartzite (Banded)
Metamorphosed Sandstone (SiO2 with impurities)
metamorphic
Dalmatian Stone
Peralkaline rhyolite
igneous
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Sedimentary
River Rocks and Pebbles
Mixed Silica-rich Sediments (SiO2 based)
sedimentary
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
mineral
Yellow Jasper
Silicon dioxide (SiO2)
sedimentary
Carnelian
Cryptocrystalline Quartz (SiO2 with Hematite impurities)
mineralish (variety of chalcedony)
Chert (specifically Jasper/Flint)
Chert (SiO2)
sedimentary
Chert
Chert (Microcrystalline Silica, SiO2)
sedimentary
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Chert with Limestone
Silicon Dioxide (SiO2) in Calcium Carbonate (CaCO3) Matrix
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities (Goethite)
Mineral-based Sedimentary/Silica
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Jasper (Imperial Jasper style)
Silicon Dioxide (SiO2) with impurities
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Quartz Geode with Chalcedony
Silicon Dioxide (SiO2) in Geode Form
sedimentary
Kambaba Jasper (Crocodile Jasper)
Stromatolite (Fossilized Algae within Microcrystalline Quartz), SiO2
sedimentary
Petrified Wood
Silicified Wood (primarily SiO₂ / Silicon Dioxide)
mineral
Yellow Jade (Yellow Chalcedony/Quartz)
Silicon Dioxide (SiO2)
mineral
Chert (often called Flint)
Chert (Microcrystalline or cryptocrystalline Silica, SiO2)
sedimentary
Chalcedony (Quartz variety)
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate
Silicon Dioxide (SiO2) - Chalcedony / Quartz
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Chalcedony (River or Beach Pebbles)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Lake Superior Agate
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Chert (Nodule)
Silicon dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with Iron inclusion)
sedimentary
Dalmation Jasper
Dalmation Stone (perthitic feldspar with arfvedsonite)
igneous
White Jade / White Chalcedony
Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)
Mineral
Jasper-Quartz Conglomerate / Chert
Siliceous Sedimentary Rock (SiO2)
sedimentary
Banded Agate (Crazy Lace/Mexican Agate Variety)
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Orbicular Jasper, Chalcedony (SiO2)
mineral
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)
sedimentary
Chert (Flint)
Chert (SiO2)
sedimentary