Chert (with Iron Staining)
Chert (SiO2)
Category
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
Chert (with Iron Staining)
Chert (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Apache Tear (Obsidian)
Obsidian / Amorphous Volcanic Glass (primarily SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Red Jasper
Jasper (Silicon Dioxide with Hematite inclusions), SiO2
Red Jasper with Quartz Vein
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Green Quartzite
Metamorphic rock primarily composed of Silicon Dioxide (SiO2) with mineral inclusions like fuchsite or chlorite
Jasper
Silicon dioxide (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Jasper (specifically Oolitic or Brecciated Jasper)
Silicon Dioxide (SiO₂)
Fossilized Coral (Petoskey-like or Favosites)
Anthozoa (Fossilized Coral)
Chert (Jasper/Flint variety)
Silicon dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Iron-stained)
Chert (SiO2)
Chert (specifically Red Chert/Jasper nodule)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Quartz
SiO₂ (Silicon Dioxide)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert (Flint)
Chert (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2) with iron oxide impurities
Jasper with Iron Staining
Silicon Dioxide (SiO2) with Hematite impurities
Chert (Jasper/River Rock)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Epidote in Matrix (Unakite-related)
Epidosite (Ca2(Al,Fe)3(SiO4)3(OH))
Chert (Green variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
Chert (varieties include Flint and Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Serpentinite
Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
Chert (often called Flint)
Chert (Microcrystalline Quartz, SiO2)
Red Jasper
Quartz (Silicon Dioxide) with Iron Oxide impurities (Fe2O3)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
Slag (Industrial Glass)
Anthropogenic Vitreous Slag (Post-industrial byproduct)