Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Mineral (Specifically A Mineraloid)
Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.
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Chert (specifically Flint or Dark Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Red Chert or Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Jasper/Brown Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Green Chert/Jasper)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Chert (specifically Jasper/Flint)
Chert (SiO2)
sedimentary
Chert (specifically var. Flint or Jasper-rich Breccia)
Microcrystalline Quartz (SiO2)
sedimentary
Ferruginous Slag (Iron Smelting Byproduct)
Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)
Mineraloid/Anthropogenic (Technofossil)
Chert (specifically Flint or Common Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint or Common Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Green Jade (specifically Nephrite)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Chert (specifically Flint or Common Chert)
Silicon dioxide (SiO2) - Microcrystalline quartz
sedimentary
Chert (specifically Flint or Common Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Coal (specifically Bituminous or Anthracite)
Organic sedimentary rock; primarily Carbon (C) with varying H, S, O, N
sedimentary
Chert (specifically Flint or Common Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Common Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint or Dark Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint or Common Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Gray Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Yellow/Brown Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Limestone (specifically Crushed Limestone/Calcictic)
Calcium Carbonate (CaCO3)
sedimentary
Chert (specifically Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Mookaite Jasper
Siliceous sedimentary rock (variety of Jasper/Chert)
Sedimentary Rock
Basalt
Mafic volcanic rock (Basalt)
igneous
Limestone (specifically Dolomitic Limestone)
Calcium Magnesium Carbonate (CaMg(CO3)2)
sedimentary
Chert (specifically Jasper or Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Yellow or River Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartzite (specifically Pink or Red Quartzite)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Chert (specifically Gray/Tan Bedded Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Common Opal)
Silicon Dioxide (SiO2)
sedimentary
Jade (specifically Nephrite or Jadeite beads)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
metamorphic
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (specifically Flint or Common Opal/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Iron-stained or Jasperoid Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint Arrowhead)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Precious Coral
Corallium rubrum (Calcium carbonate with trace carotene)
Organic gemstone / Sedimentary mineraloid
Chert
Siliceous sedimentary rock (predominantly microcrystalline quartz, SiO2)
Sedimentary
Chert (or Flint)
Chert (microcrystalline or cryptocrystalline quartz, SiO2)
Sedimentary
Chert (specifically Flint or Nodular Chert)
Silicon dioxide (SiO2)
sedimentary
Red Jasper (specifically Brecciated Jasper)
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary