Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein)
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Possibly Conglomerate Or Breccia With A Quartz Vein) in the encyclopedia
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Geode
Quartz nodule / Chalcedony-lined cavity
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Limestone with Calcite Veins
Calcium Carbonate (CaCO3)
sedimentary
Quartz (Milky or Smoky variety)
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂)
Mineral
White Quartz
Quartz (SiO2)
Mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Basalt inclusion
Silicon Dioxide (SiO2) with mafic silicate rock
igneous and sedimentary/metamorphic mix
Sandstone or Quartzite
Arenite (if sedimentary) / Quartzite (if metamorphic)
Sedimentary or Metamorphic
Fossil Coral
Rugose Coral or Tabulate Coral (Phylum Cnidaria)
fossil
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pink-and-gray quartz-rich pegmatite, possibly rose quartz with feldspar
Quartz (SiO₂) with K-feldspar/plagioclase; likely pegmatitic granite
igneous
Sandstone
Sedimentary Rock (Quartz arenite/Arkose)
sedimentary
Yellow Quartz (Citrine Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Tumbled reddish-brown pebble, likely sandstone or iron-rich quartzite
Probable ferruginous sandstone (quartz-rich; SiO₂ with iron oxides), possibly quartzite
sedimentary or metamorphic
Tumbled gray feldspar-rich stone, possibly granite or quartzite
Indeterminate; likely quartz–feldspar aggregate, potentially fine-grained granite or quartzite
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Dyed Agate (Tumbled)
Silicon Dioxide (SiO2) - stained microcrystalline quartz
sedimentary
Milky quartz-rich rock
Quartz (SiO₂), likely massive milky quartz with minor iron-stained gangue
mineral
White Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Gold-bearing Quartz
Auriferous Quartz (SiO2 with Native Gold inclusion)
mineral
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
sedimentary
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Greenschist (containing Epidote and Quartz)
Greenschist (Epidote-Chlorite-Actinolite Schist)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
mineral
Sandstone
Sedimentary rock composed mainly of quartz sand grains
sedimentary
Pink Quartz
Silicon Dioxide (Quartz), SiO2
mineral
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Mixed rock and mineral collection
Multiple specimens; visible examples may include quartz (SiO₂), amethyst (quartz), calcite (CaCO₃), and dark mafic rocks
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Sandstone
Sedimentary Clastic Rock (Quartz-rich)
sedimentary
Yellow Quartzite Pebble
Quartzite (SiO2)
metamorphic