Limestone (Weathered)
Sedimentary carbonate rock, primarily calcium carbonate (CaCO3)
sedimentary
Category
Sedimentary (Microcrystalline Silicate)
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Microcrystalline Silicate) in the encyclopedia
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Raw Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Gravel or Pebble
Clastic Sedimentary Grain (typically composed of Quartz or Silicate minerals)
sedimentary
Jasper Marble
Silicon Dioxide (SiO2) with Impurities
sedimentary
Shale
Shale (clay-sized silicate minerals)
sedimentary
Riverstone Jasper (Chert variant)
Silicon Dioxide (SiO2)
sedimentary
Green Jasper
Silicon dioxide (SiO2)
sedimentary
Red Ochre (Hematite-rich Clay)
Limonitic/Hematitic Claystone (Fe2O3 with clay minerals)
Sedimentary
Picture Jasper
Silicon dioxide (SiO2)
sedimentary
Bumblebee Jasper
Anhydrous Calcium Carbonate with Sulfur and Arsenic (Orpiment/Realgar)
sedimentary
Green Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay inclusions
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Chert Nodules (Limonitic Chert)
Cryptocrystalline Quartz (SiO2) with Hydrated Iron Oxides
sedimentary
Green Chert (Jasper / Flint)
Silicon Dioxide (SiO2)
sedimentary
Chalcedony in Matrix (likely Agatized Coral or Chert)
Silicon Dioxide (SiO2)
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Chert (specifically Green Chert/Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Sandstone Chert/Quartzite
Silicon Dioxide (SiO2) - Sedimentary Sandstone / Orthoquartzite
sedimentary
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Green Jasper with Agate Banding
Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite
sedimentary (chemical/biological origin)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Red Jasper (Silicate Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with impurities of iron(II) silicate
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Chert (Jasper-like Silicate)
Silicon Dioxide (SiO2)
sedimentary
Picture Jasper
Silicon Dioxide (SiO2)
sedimentary
Grey River Pebble (Greywacke / Basalt)
Stream-rounded silicate rock pebble
sedimentary
Polished brecciated jasper
Jasper, microcrystalline quartz (SiO₂), with iron-oxide and dark mineral inclusions
gemstone
Chert Pebble (Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)
Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates
igneous, sedimentary, and metamorphic
Turritella Agate (Fossiliferous Chert)
Silicified Elimia tenera (Fossiliferous Chalcedony)
sedimentary
Green Jasper (Chert)
Silicon Dioxide (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Veined Limestone (Micrite) with Quartz/Calcite Veins
Calcium Carbonate (CaCO3) with Silicate or Carbonate inclusions
sedimentary
Chert / Green Jasper
Silicon Dioxide (SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary