Quartzite Pebble
Quartzite (SiO2)
Category
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Pink Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
Quartzite
SiO2 (Silicon Dioxide)
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
Quartz
Silicon Dioxide (SiO₂)
Basalt
Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)
Labradorite
Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)
Quartz Pebble (Iron-stained)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Unakite
Unakite Epidosite (Granite with epidote and orthoclase)
Epidote
Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))
Vesicular Basalt with Secondary Mineral Inclusions
Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Pink Granite
Phaneritic Felsic Igneous Rock
Blue Calcite
Calcium Carbonate (CaCO3)
Chert (varietal: Flint/Jasper mix)
Hydrous Silica (SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with impurities
Amethyst
SiO2 (Silicon Dioxide)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Quartz
Quartz (Silicon Dioxide - SiO2)
Granitic Pegmatite
Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)
Quartzite River Pebble
Quartzite (SiO2)
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Basalt
Mafic volcanic rock (Primary minerals: Plagioclase feldspar, Pyroxene)
Diorite
Intrusive Igneous Rock (Intermediate Composition)
Pink Granite
Felsic intrusive igneous rock (composition: SiO2 and Al2O3)
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
Granite (Weathered)
Course-grained Intrusive Igneous Rock
Dalmatian Jasper (Dalmatian Stone)
Perthitic feldspar with Arfvedsonite inclusions
Granodiorite / Granite
Granodiorite (containing Quartz SiO2, Plagioclase Feldspar, and Biotite)
Quartzite
Quartzite (primarily SiO2)
Quartz (specifically Milky or Clear Quartz fragment)
Silicon Dioxide (SiO2)
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock