Quartzite Cobble
Quartzite (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartzite Cobble
Quartzite (SiO2)
Jasper with Epidote Vein
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))
Banded River Rock / Gneiss (highly weathered)
Gneiss
Milky Quartz
Silicon Dioxide (SiO2)
Green Quartzite (Tumbled)
Metamorphosed Quartz-rich Sandstone
Gneiss
Gneiss (High-grade metamorphic rock)
Quartz Pebble
Silicon Dioxide (SiO2)
Chert (Likely Jasper)
Microcrystalline Quartz (SiO2)
Serpentine
Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Pink Feldspar
Orthoclase Feldspar (KAlSi3O8)
Banded Iron Formation
Banded Iron Formation (BIF)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)
Aventurine
Aventurine Quartz (SiO2 with inclusions)
Chert (Chalcedony/Flint)
Microcrystalline Quartz (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Serpentine
Serpentine-group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartzite River Rock
Quartzite (SiO2 based metamorphic rock)
Quartzite Pebble
Metamorphic Rock (composed mainly of SiO2)
Tiger's Eye (Banded)
Pseudomorph of Quartz after Crocidolite (SiO2)
Gneiss
Gneiss
Quartzite with Chlorite staining
Metamorphic Quartzite (SiO2 with Chlorite inclusions)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Pyrite
Pyrite (FeS2)
Quartzite (River Cobble)
Quartzite (predominantly SiO2)
Jasper with Agate Inclusions
Silicon Dioxide (SiO2) - variety of Quartz/Chert
Amethyst and Ruby in Zoisite
Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Unakite
Epidotized Granite
Amethyst (Druze)
Silicon Dioxide (SiO2) with iron impurities
Quartzite Pebbles (Sugar Quartz)
Metamorphic Quartzite (SiO2)
Leopardskin Jasper
Jasper (a variety of microcrystalline Quartz)
Quartzite Pebble
Quartzite (primarily SiO2)
Quartzite Pebble (River Rock)
Quartzite (primarily SiO2)
Yellow Quartzite Pebble
Quartzite (primarily SiO2)
Iron-Stained Quartz/Quartzite
Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)
Quartzite with inclusions
Metamorphic Quartzite (SiO2 with accessory minerals)
Yellow Quartzite (River Pebble)
Quartzite (SiO2)
Pink Dyed Agate (Banded Chalcedony)
Silicon dioxide (SiO2) - variety Chalcedony