Mineral Within A Sedimentary Rock

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Travertine (Ceramic Tile)

Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)

Banded Agate

Cryptocrystalline Quartz (SiO2)

Chert (or Flint)

SiO2 (predominantly microcrystalline quartz)

Quartz (Pebble)

Quartz (SiO₂)

Sandstone

Arenite (primarily SiO2 - Silicon Dioxide)

Carnelian

Chalcedony (Silicon Dioxide, SiO2 with Iron Oxide impurities)

Carnelian

Carnelian (variety of Chalcedony, SiO2)

Gneiss (specifically Granitic Gneiss)

Gneissic Metamorphic Rock

Sandstone

Arenite (primarily SiO2)

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Gneiss

Gneiss

Lava Stone and Chakra Beads

Basalt (with various mineral/synthetic beads)

Red Jasper (Amygdaloidal Basalt with Agate)

Silicon dioxide (SiO2) in Basalt host

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz crystals on a Matrix base (Geode fragment)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade Metamorphic Rock)

Amethyst (Quartz)

SiO2 (Silicon Dioxide)

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Banded Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide impurities), formula: SiO2

Geode (Quartz)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Porphyritic Rhyolite (Red)

Rhyolite (Porphyry)

Sandstone (Quartzose Sandstone)

Arenite (SiO2)

Oolite (Ooids)

Oolitic Limestone (Principal mineral: Calcite, CaCO3)

Sandstone

Arenite (SiO2 based)

Chert (varietal Flint)

Silicon Dioxide (SiO2)

Moqui Marble

Iron Oxide Concretion

Chert / Flint

Microcrystalline or cryptocrystalline quartz (SiO2)

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (Hematite/Goethite-encased Sandstone)

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Quartzite with Quartz Vein

Metamorphosed sandstone (SiO2)

Wishing Stone (Quartz-veined Siltstone or Graywacke)

Hydrothermal Quartz vein in matrix of SiO2 (Quartz) and Al2O3 (Clay minerals)

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Granite Cobble

Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)

Sandstone (specifically Red Sandstone)

Arenite (SiO2 with Iron Oxide)

Sandstone (Red)

Arenite (primarily SiO2 with Iron Oxide staining)

Red Jasper

Silicon Dioxide with Iron Oxide (SiO2)