Jasper River Stone
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
sedimentary
Category
Sedimentary (Secondary Classification For A Weathered Mineral Specimen)
Browse sedimentary (secondary classification for a weathered mineral specimen) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Secondary Classification For A Weathered Mineral Specimen) in the encyclopedia
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Chert Pebble (Flint)
Microcrystalline/Cryptocrystalline Quartz (SiO2)
sedimentary
Granite Pebble
Granite
igneous
Quartz Geode
Silicon Dioxide (SiO2) in a Secondary Formation
sedimentary
Granite
Granite (Felsic Intrusive Igneous Rock)
igneous
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Granite Pebble
Granite (Phaneritic Igneous Rock)
igneous
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz / Common Gravel
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Agate variant)
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Moss Agate
Silicon Dioxide (SiO2) with Chlorite/Oxide inclusions
mineral
Limestone (Brecciated/Recrystallized)
Calcium Carbonate (CaCO3)
sedimentary
Chert (River Pebble)
Microcrystalline silicon dioxide (SiO2)
sedimentary
Chert (Field Stone)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
sedimentary
Black Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Granitic Quartz with Feldspar
Granite (composed primarily of SiO2 and KAlSi3O8)
igneous
Gold
Native Gold (Au)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz / Quartzite
Silicon Dioxide (SiO2)
minerals
Chert (Yellow or Ochre Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Ferruginous Quartzite (Iron-stained Quartz)
Quartzite (SiO2 with Fe-oxide staining)
metamorphic
Quartz / Quartzite
Silicon Dioxide (SiO2)
mineral
Dark Igneous Rock (Likely Basalt or Diabase)
Basalt (extrusive igneous rock) or Diabase (intrusive igneous rock - also known as Dolerite), largely composed of plagioclase feldspar, pyroxene (augite), and sometimes olivine and amphibole. Exact mineralogy would require thin section analysis.
Igneous
Chert (Iron-stained)
Microcrystalline silica (SiO2) with trace Iron oxide (Fe2O3)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities (Goethite)
Mineral-based Sedimentary/Silica
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Igneous
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Chert (specifically Iron-stained or Jasperoid Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (with Manganese Oxide coating)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Shark Tooth (Fragment) in Matrix
Elasmobranchii (subclass)
fossil
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Painted Pet Rock (Quartzite/Sandstone base)
Silicon Dioxide (SiO2) with anthropomorphic acrylic embellishments
sedimentary
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Chrysocolla
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Hydrated Copper Phyllosilicate)
mineral
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
sedimentary