Graywacke
Lithic Sandstone (Graywacke)
sedimentary
Category
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Boxwork Quartz / Septarian Jasper
Boxwork (SiO2 with iron oxide inclusions)
metamorphic
Sandstone (Arkose/Quartzose)
Arenite (SiO2 based clastic rock)
sedimentary
Sandstone (likely Siltstone or Mudstone)
Clastic sedimentary rock (primarily SiO2 with various oxides)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (mostly SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (typically SiO2 + others)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 variety)
sedimentary
Sandstone (Pebble)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Coarse Sandstone Pebble
Clastic Sedimentary Rock (Sandstone)
sedimentary
Sandstone (with man-made markings)
Arenite (composed primarily of Quartz, SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Shale
Argillaceous Sedimentary Rock
sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Ocean Jasper
Orbicular Jasper / Silicate
Mineral
Quartz Geode (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Faceted Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone (likely Graywacke or Lithic Sandstone)
Clastic Sedimentary Rock
sedimentary
Stream-Rounded Shale or Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone (Tafoni Weathered)
Arenite (part of the Sandstone family)
sedimentary
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral with metamorphic or sedimentary host
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Granite)
igneous