Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary rock (possibly conglomerate or breccia with a quartz vein) specimens identified by the Rock Identifier community.
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Sandstone
Clastic Sedimentary Rock
Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
River Pebble (Quartzite / Sandstone)
SiO2 (Quartz-rich sedimentary/metamorphic rock)
Sandstone
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Chert/Chunky Chalcedony)
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
Iron-stained quartz or quartz-rich rock
Quartz (SiO₂), likely milky quartz with hematite/goethite staining
Pink Granite
Phaneritic Quartz-Feldspar Plutonic Rock
Ferruginous Quartz
Ferruginous Quartz (Silicon Dioxide + Iron Oxide, SiO2 + Fe2O3)
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Limonite/Goethite staining)
Sandstone
Clastic sedimentary rock (quartz arenite)
Sandstone (Quartz Arenite)
Clastic Sedimentary Rock - Quartz Arenite
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Basalt with Quartz Veins
Basalt (composition: SiO2, MgO, FeO, Al2O3, CaO)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Quartz
Quartz (SiO2) with inclusions
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Sandstone (Pebble / Cobble)
Arenite / Sedimentary Rock (composed of quartz and feldspar)
Flint in Limestone (Chert Nodule)
Sedimentary rock containing microcrystalline quartz (SiO2) within a carbonate matrix
Sandstone
Clastic Sedimentary Rock
Quartz Geode
Silicon Dioxide (SiO2)
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)