Quartzite River Rock
Metamorphic Quartzite (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartzite River Rock
Metamorphic Quartzite (SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Quartzite
Quartzite (SiO2)
Quartzite Pebble
Quartzite (SiO2) with mineral inclusions
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2) with iron impurities
Sandstone (Graywacke)
Clastic Sedimentary Rock (Lithic Sandstone)
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Gneiss
Metamorphic rock of high-grade regional metamorphism
Red Quartzite
Quartzite (primarily SiO2)
Chakra Stone Bracelet (mixed gemstones)
Multi-mineral/Gemstone assembly (primarily Quartz variety beads)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartz (Microcrystalline/Gravel)
Silicon Dioxide (SiO2)
Yellow Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Rutilated Quartz
SiO2 with TiO2 inclusions
Milky Quartz (or Iron-Stained Quartz)
Quartz (Silicon Dioxide, SiO2)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Schist
Mica Schist
Quartz (with probable host rock)
Silicon Dioxide (SiO2)
Snakeskin Jasper
Silicon Dioxide (SiO2) with iron oxide and calcium carbonate inclusions
Unakite (Epidote with Quartz and Feldspar)
Unakite (Metasomatized Granitic Rock)
Chert (Jasper/Agate variety)
Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Milky Quartz with Country Rock contact
Silicon Dioxide (SiO2) in contact with Metamorphic/Igneous rock
Serpentinite
Serpentinite (Mg3Si2O5(OH)4)
Blue Quartzite (Dyed)
Metamorphosed Quartz-rich Sandstone (SiO2 with organic dye)
Gneiss
Gneiss (High-grade Regional Metamorphism)
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
Gneiss
High-grade Metamorphic Gneiss
Zebra Jasper
Tectonized Jasper (Silicon Dioxide, SiO2)
Beryl (Emerald Variety)
Beryllium Aluminum Silicate (Be3Al2(SiO3)6)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Blue Lace Agate (Polished Point)
Silicon Dioxide (SiO2) - Variety of Chalcedony
Granite
Granite (Felsic Plutonic Rock)
Blue Quartzite
Quartzite (mostly SiO2 with mineral inclusions)
Red Jasper
Jasper (variety of Chert/Chalcedony, formula SiO2)
Quartzite
Quartzite (primarily SiO2)
Mixed Gemstone and Mineral Collection
Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)