Chert (Golden/Yellow Variety)
Microcrystalline Silica (SiO2)
Category
Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.
Chert (Golden/Yellow Variety)
Microcrystalline Silica (SiO2)
Chert (Jasper/Chalcedony)
Microcrystalline Silica (SiO2)
Chert (Basanite / Flint)
Microcrystalline silica (SiO2)
Chert (Nodule)
Microcrystalline Silica (SiO2)
Chert Pebble
Microcrystalline silica (SiO2)
Chert (vuggy variety)
Microcrystalline silica (SiO2)
Chert (Nodule)
Microcrystalline Silica (SiO2)
Chert (Black Chert)
Microcrystalline Silica (SiO2)
Chert Nodule (with Ironstone Cortex)
Microcrystalline Silica (SiO2)
Chert (River Pebble)
Microcrystalline silica (SiO2)
Chert Nodule
Microcrystalline Silica (SiO2)
Chert (and/or River Pebble)
Microcrystalline silica (SiO2)
Chert (Green Chert)
Microcrystalline silica (SiO2)
Chert / River Pebble
Microcrystalline Silica (SiO2)
Chert with Jasper and Quartz
Microcrystalline Quartz (SiO2)
Red jasper (likely)
Microcrystalline quartz, SiO₂, colored red by iron oxides
Limestone
Calcite (CaCO3)
Chert (specifically Silex or Flint)
Microcrystalline Quartz (SiO2)
Flint
Chert (SiO2)
Agate Geode
Silicon Dioxide (Chalcedony / Quartz), SiO2
Blue Chalcedony
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Likely raw garnet fragment
Garnet-group silicate, commonly almandine (Fe₃Al₂Si₃O₁₂)
Chert (Nodular)
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2) with impurities
Chert / Jasper
Silicon Dioxide (SiO2)
Chert (varieties include Flint and Mudstone)
Microcrystalline Silica (SiO2)
Chert (Jasper/Carnelian variety)
Microcrystalline Quartz (SiO2)
Chert (specifically Jaspery Chert)
Microcrystalline Quartz (SiO2)
Jasper Pebble
Microcrystalline Quartz (SiO2)
Chert (Pebble)
Microcrystalline silica (SiO2)
Orbicular jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), commonly with iron oxides and other silicates
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Quartzite / Iron-stained Chert
Silicon Dioxide (SiO2) with Iron Oxide impurities
Banded Chert Pebble
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Banded Agate
Silicon Dioxide (SiO2)
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
Chert (Flint)
Microcrystalline Silica (SiO2)
Chert (Jasper)
Microcrystalline Silica (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)