Agate (Water-Worn)
Cryptocrystalline quartz (SiO2)
sedimentary
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
View all →
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
SiO2 (Silicon Dioxide)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (or Chalcedony) Specimen
Silicon Dioxide (SiO2)
mineral
Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
metamorphic
Red Sandstone Pebble
Sedimentary quartz sandstone
sedimentary
Quartz (Druzy or Chalcedony variant)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (Geode Nodules / Stream-Rounded Quartz)
Silicon Dioxide (SiO2)
mineral
Weathered iron-rich sandstone or ironstone
Ferruginous sandstone, commonly quartz-rich with iron oxides (Fe₂O₃/FeOOH)
sedimentary
Sandstone
Clastic sedimentary rock
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Sandstone
Sedimentary Rock (Quartz arenite or arkose)
sedimentary
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
White Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone Pebble
Arenite (SiO2 dominated)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz and Iron Oxide
Quartz (Silicon Dioxide, SiO2) with possible Limonite/Hematite inclusions
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Boulder
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 predominantly)
sedimentary
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Cluster / Quartzite
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Limestone with Calcite Veining
Sedimentary Carbonate Rock (CaCO3)
sedimentary
Geode (Quartz / Chalcedony Geode)
Silicon Dioxide (SiO2) - Quartz / Chalcedony
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Common Opal in Host Rock
Hydrated Silica (SiO2·nH2O)
mineraloid
Yellow Chert or Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
sedimentary
Milky Quartz Pebble with Chert
Silicon Dioxide (SiO2)
mineral
Quartz Pebble with Drusy/Crystalline Pocket
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral