Quartz
Silicon Dioxide (SiO2)
Category
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Quartz (SiO₂)
Quartz Crystal
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Heart-shaped pebble)
Sedimentary Quartz Sandstone
Sandstone Geode (Unbroken)
Siliciclastic sedimentary rock (primarily Quartz)
Quartz Geode
Quartz (Silicon Dioxide, SiO2) in a Geode
Sandstone
Clastic Sedimentary Rock
Sandstone
Clastic sedimentary rock
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon dioxide (SiO2)
Quartz (Yellow Quartz / Citrine / Calcite)
Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Painted Sandstone
Sandstone (clastic sedimentary rock) with acrylic/artistic coating
Agate / Chalcedony Geode Nodule
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz Druzy Geode
Silicon Dioxide (SiO2) - Crystalline Variety
Jasper
Silicon Dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock
Quartz in Matrix (Lepidolite or Quartzite)
Silicon Dioxide (SiO2) with host rock
Brown Jasper / Chert
Microcrystalline Quartz (SiO2)
Sandstone
Clastic Sedimentary Rock
Sandstone Pebbles
Arenite
Quartz Pebble (Feldspathic / Chert Pebble)
Silicon Dioxide (SiO2) / Potassium Feldspar (KAlSi3O8)
Red Jasper (Beach Pebble)
SiO2 (Microcrystalline Quartz with Hematite inclusions)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Quartz (Silicon Dioxide, SiO2)
Basalt with Quartz Veining
Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
Sandstone (Quartzose Pebble)
Clastic Sedimentary Rock (Litharenite/Quartz arenite)
Weathered sandstone or arkose fragment
Quartz-rich clastic sedimentary rock; likely sandstone/arkose (dominantly SiO₂ quartz with feldspar and lithic grains)