Mineral Or Sedimentary Rock (With Mineral Inclusions)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Dendritic jasper (brecciated or orbicular jasper)

Microcrystalline quartz (SiO₂) with iron-oxide inclusions

Granite Pebbles

Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)

Ferruginous Sandstone (Gozzan/Ironstone)

Arenite with Limonite/Goethite cement (FeO(OH)·nH2O)

Jasper pebble with vein quartz cross-cutting fractures

Microcrystalline Quartz (SiO2) with iron oxide inclusions

Sandstone

Arenite (SiO2 based)

Hag Stone

Perforated Quartz Pebble / Sedimentary Rock

Red Sandstone

Arenite (primarily Quartz with Iron Oxide)

Iron-stained quartz (likely quartzite or quartz-rich rock)

Quartz, silicon dioxide (SiO₂), with iron-oxide staining

Basalt with Quartz/Plagioclase Inclusions

Mafic volcanic rock (Basaltic)

Witch Stone (Hag Stone)

Perforated Sedimentary Rock (Typically Sandstone or Limestone)

Sandstone (Quartz-rich)

Sandstone (SiO2 dominated)

Petrified Wood

Silicified wood (Quartz/Chalcedony - SiO2)

Dalmatian Stone (often misnamed Dalmatian Jasper)

Aplite (with hornblende/arfvedsonite inclusions)

Chert on Volcanic Host Rock

Sedimentary Chert (SiO2) within Basalt or Andesite

Red Sandstone

Arenite with iron oxide (Hematite) cement

Jasper with Quartz inclusions

Silicon Dioxide (SiO2)

Sandstone (Ferruginous)

Arenite with Iron-oxide inclusions (SiO2 primarily)

Quartz (in a rock matrix)

Quartz (SiO2)

Ferruginous Sandstone

Ferruginous Quartz-Arenite

Tumbled jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), commonly colored by iron oxides and hydroxides

Sandstone (likely Graywacke or Arkose)

Clastic Sedimentary Rock (primarily SiO2 with various lithic fragments)

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Sandstone with Hematite staining

Arenite with Fe2O3 inclusions

Fancy Jasper (Agate/Chert mix)

Silicon Dioxide (SiO2) with various inclusions

Red Sandstone

Arenite (Ferruginous Sandstone)

Sandstone (likely Graywacke or Arkose variant)

Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)

Garnet-Mica Schist

Garnetiferous Porphyroblastic Schist

Sandstone (Greywacke)

Arenite / Wacke (SiO2 + varied clasts)

Red Jasper (Brecciated Jasper)

SiO2 (Silicon Dioxide) with Ferric Iron inclusions

Jasper

Silicon dioxide / Chalcedony (SiO2)

Sandstone

Arenite (Siliclastic sedimentary rock, primarily SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Quartz geode

Microcrystalline quartz (SiO₂), commonly with chalcedony and possible calcite inclusions

Sandstone with Iron Staining

Arenite with Limonite/Hematite inclusions (SiO2 + Fe2O3/FeO(OH))

Milky quartz pebble

Quartz, silicon dioxide (SiO₂)

Jasper Pebble

Microcrystalline Quartz (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Limonite inclusions

Granite

Intrusive Igneous Rock (Felsic)

Sandstone

Arenite (primarily SiO2)

Hag Stone

Perforated Sedimentary Rock / Flint / Limestone