Tumbled Agate
Cryptocrystalline Silicon Dioxide (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.
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Quartz-rich metamorphic rock, likely milky quartz or quartzite
Quartz (SiO₂); possibly quartzite composed predominantly of recrystallized quartz
metamorphic
Conglomerate
Conglomerate (SiO2 matrix with varying clasts)
sedimentary
Siltstone with Quartz Vein
Siltstone (composed of Quartz and Clay minerals) with a hydrothermal Quartz vein (SiO2)
sedimentary
Basalt with Quartz Vein
Basalt (extrusive igneous rock with SiO2 vein inclusion)
igneous
Basalt with Quartz/Calcite Vein
Aphanitic Mafic Volcanic Rock with Quartz (SiO2) or Calcite (CaCO3) Vein
igneous
Weathered quartz-rich rock, possibly quartzite or quartz vein material
Quartz (SiO₂), likely with feldspar, mica, and iron-oxide staining
metamorphic
Quartz Vein in Siltstone
Siltstone with Quartz (SiO2) inclusion
sedimentary
Puddingstone (Polished Pebble)
Conglomerate (Quartz-rich)
sedimentary
Quartz-bearing rock fragment
Likely quartz (SiO₂) with iron-oxide staining and possible host-rock grains
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Quartz Pebble with Host Rock / Schist Matrix
Silicon Dioxide (SiO2) with Metamorphic Host Rock
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Iron-rich breccia or weathered ironstone
Goethite–hematite-bearing limonite, possibly brecciated host rock
mineral
Quartz Pebble
Silicon dioxide (SiO2)
sedimentary
Polished white chalcedony or milky quartz pebble
Chalcedony, microcrystalline quartz (SiO₂), possibly with iron-oxide staining or a minor mineral inclusion
mineral
Weathered quartz-rich cobble (likely quartzite or vein quartz)
Quartzite, predominantly SiO₂; possibly weathered vein quartz
metamorphic
Iron-stained quartz vein rock
Milky quartz (SiO₂) with limonite/goethite iron oxides, possibly in altered host rock
metamorphic
Sandstone with Quartz Vein
Arenite with SiO2 intrusion
sedimentary
Conglomerate
Conglomerate (lithified rudite)
sedimentary
Conglomerate
Conglomeratic Sandstone / Polymictic Conglomerate
sedimentary
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (sedimentary clastic rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Clastic sedimentary rock (Conglomerate)
sedimentary
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary