Quartzite with Chalcedony
Metamorphosed Quartz-rich Sandstone (SiO2)
Category
Browse metamorphic or sedimentary (with staining) specimens identified by the Rock Identifier community.
Quartzite with Chalcedony
Metamorphosed Quartz-rich Sandstone (SiO2)
Quartzite with Iron Inclusions
Metamorphosed Quartz-rich Rock (SiO2)
Quartzite
Quartzite (chiefly SiO2)
Quartzite Pebble
Quartzite (SiO2)
Quartzite Cobble
Quartzite (SiO2)
Pink Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2 with Iron Oxide impurities)
River Quartzite Spheroid
Recrystallized Orthoquartzite (SiO2)
River Quartzite (River Rock)
Quartzite (SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartzite (River Cobble)
Metamorphic Quartz-rich Rock
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Small rounded quartz pebble
Quartz (SiO₂), likely milky or iron-stained quartz
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Biotite schist (probable mica schist)
Mica schist; chiefly quartz, biotite mica, and feldspar
Weathered quartz-rich rock, likely quartzite or altered sandstone
Quartzite (mostly microcrystalline quartz, SiO₂); exact identification is uncertain from the photograph
Quartzite (Gold-toned)
Crystalline Quartz Metamorphite (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Brown Chert or Ironstone
Cryptocrystalline Quartz (SiO2) with Iron Oxides
Jasper (Iron-stained Quartz)
Silicon dioxide (SiO2) with iron oxide inclusions
Banded Chert
Microcrystalline Quartz (SiO2)
Slate with Quartz
Low-grade Metamorphic Slate with SiO2 inclusions
Quartz Matrix with Iron Staining / Mica Schist
Silicon Dioxide (SiO2) with Iron Oxide staining
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Limonite/Goethite staining)
Weathered quartz-rich metamorphic rock, possibly quartzite
Quartzite; predominantly quartz (SiO₂), with minor feldspar, mica, and iron-oxide staining
Dark metamorphic rock, likely hornfels or fine-grained basalt
Probable hornfels; commonly quartz–feldspar–mica with variable amphibole/pyroxene
Yellow Quartzite Pebble
Quartzite (SiO2)
Milky quartz-rich vein rock
Quartz, SiO₂, likely massive or microcrystalline quartz
Yellow Quartzite
Quartzite (primarily SiO2)
Quartzite (Quartz Pebble)
Quartzite (SiO2 with iron oxide inclusions)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartz Cobble (River Rock)
Silicon Dioxide (SiO2)
Quartzite Cobble (Iron-stained)
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartz Pebble (Iron-Stained)
Silicon Dioxide (SiO2)
Red Sandstone
Ferruginous Sandstone (SiO2 dominated with Fe2O3)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Schist
Schist (Metamorphic Rock)