Red Quartzite
Quartzite (SiO2)
Category
Browse sedimentary rock (technically a microcrystalline quartz mineral aggregate) specimens identified by the Rock Identifier community.
Red Quartzite
Quartzite (SiO2)
Jasper
Jasper (Silica-rich Microcrystalline Quartz, SiO2)
Banded Iron Formation
Banded Iron Formation (BIF)
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Chert Arrowhead
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartzite River Rock
Quartzite (primarily SiO2)
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite Pebble
Quartzite (primarily SiO2)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Quartzite River Rock
Quartzite (Silicon Dioxide, SiO2)
Chert / Red Jasper
Microcrystalline Quartz (SiO2)
Amber Chert (Jasper)
Microcrystalline Quartz (SiO2)
Granite
Phaneritic intrusive igneous rock (composition: Quartz, Alkali Feldspar, Plagioclase Feldspar)
Granite Cobble
Granite (Phaneritic Quartz-Feldspar-Mica intrusive rock)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chert / Flint
Chert (Silicon Dioxide, SiO2)
Banded Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Que Sera Stone (Llanite)
Rhyolite containing blue quartz and feldspar
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite (River Cobble)
Metamorphic Quartz-rich Rock
Red Jasper
Jasper (a variety of Chalcedony, SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Rhyolite
Rhyolite (felsic extrusive igneous rock)
Chert (Flint)
Silicon Dioxide (SiO2)
Quartzite (Tumbled Pebble)
Metamorphosed Quartz Sandstone (SiO2)
Conglomerate
Conglomerate (clastic sedimentary rock)
Quartzite River Stone
Quartzite (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
Basalt
Basalt (Aphanitic Mafic Volcanic)
Chert (Flint)
Microcrystalline silica (SiO2)
Red Jasper
Silicon dioxide (SiO2) with iron oxide (Fe2O3) inclusions
Conglomerate
Conglomerate (Clastic sedimentary rock)
Gneiss
High-grade regional metamorphic rock (Foliated)
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2) with miscellaneous inclusions