Mineral Or Sedimentary Rock (With Mineral Inclusions)

Milky Quartz with inclusions

Silicon Dioxide (SiO2)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Sandstone (River Pebble)

Arenite (SiO2 based)

Banded Gneiss

Gneiss (High-grade metamorphic rock)

Yellow Calcite

Calcium Carbonate (CaCO3)

Green Aventurine

Quartz with Fuchsine inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Dendrite (Manganese Oxide Dendrites)

Psilomelane or Pyrolusite on Matrix (typically MnO2)

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Moonstone with Black Tourmaline

Orthoclase (KAlSi3O8) with Schorl inclusions

Rutilated Quartz

SiO2 with TiO2 inclusions (Rutile)

Jasper Breccia

Brecciated Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Sandstone (likely Arkose or Quartz Sandstone)

Arenite (SiO2 principal component)

Ammonite Fossil

Ammonoidea (subclass)

Chert Nodule

Microcrystalline Silica (SiO2)

Turquoise

Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Sandstone

Arenite (primarily SiO2)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Conglomerate

Clastic sedimentary rock (Puddingstone)

Black Obsidian

Obsidian, volcanic glass (Amorphous SiO₂)

Chiastolite (Andalusite)

Al2SiO5

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Quartz (Clear / Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Geode (Smoky Quartz)

Silicon Dioxide (SiO2)

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Chert (Smooth River Pebble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Red Sandstone

Arenite (Fe2O3-rich)

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Sandstone with Tafoni Weathering

Arenite (SiO2 based)

Sandstone (Quartzite-rich Pebble)

Arenite (composed primarily of SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Blue Chalcedony (Tumbled)

Silicon Dioxide (SiO2)

Pink Dyed Agate

Silicon Dioxide (SiO2) - Variety Agate

Prase quartz with actinolite inclusions

Silicon dioxide (SiO2) with Calcium Magnesium Iron Silicate Hydroxide inclusions

Fossil Shell (Bivalve)

Class Bivalvia (Likely a member of the Ostreidae or Gryphaeidae family), CaCO3

Yellow Quartz (Chalcedony or Agate)

Silicon Dioxide (SiO2)

Sandstone Concretion

Septarian or Carbonate-cemented Sandstone Concretion

Garnet (Almandine)

Almandine, Fe3Al2(SiO4)3

Calligraphy Stone

Mariam Jasper (Fossiliferous Limestone with Hematite and Iron)