Metamorphic Mineral

Gold Nugget

Native Gold (Au)

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Quartz (Milky/Crystalline)

Quartz (Silicon Dioxide, SiO2)

Costume Jewelry Gemstones (Emerald-imitation and semi-precious beads)

BeCuAl6Si6O18 (Beryl structure), frequently simulated by glass or synthetic spinel

Yellow Quartz (Citrine Quartzite)

Silicon Dioxide (SiO2)

Lemon Quartz (Orizaba/Citrinated Quartz)

Silicon Dioxide (SiO2) with iron impurities/treatment

Clear Quartz

Silicon dioxide (SiO2)

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2)

White Quartz

Silicon Dioxide (SiO2)

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Aventurine

Silicon Dioxide (SiO2) with inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Blue Sapphire

Corundum (Al2O3)

Magnetite

Magnetite (Fe3O4)

Agate and Chalcedony Assortment

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Aventurine (Green Quartz)

Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)

Smoky Quartz (Tumbled)

Smoky Quartz (Silicon Dioxide - SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of fuchsite)

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Thulite in Matrix

Pink Zoisite - Ca2Al3(SiO4)3(OH)

Quartzite (with Iron Staining)

Metamorphosed Quartz Sandstone (SiO2)

Schist

Mica Schist

Clear Quartz

Silicon Dioxide (SiO2)

Clear/White Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Banded Agate (with possible Chalcedony layers)

Silicon dioxide (SiO2)

Graphite

Graphite (Native Carbon), Formula: C

Banded Rock (likely Quartz-rich)

Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals

Banded Gneiss

Gneiss (Metamorphic silicate rock)

Jade (likely Nephrite or Jadeite)

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)

Mica Schist

Mica Schist (Composition typically contains Muscovite: KAl2(AlSi3O10)(OH)2 or Biotite: K(Mg,Fe)3AlSi3O10(OH)2 along with Quartz and Feldspar)

Granite cobble

Granite (composed primarily of Quartz, Feldspar, and Mica)

Sand and Gravel (Quartz-rich)

Unconsolidated fluvial/beach sediment (primarily Silica/SiO2)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Milky Quartz with inclusions

Silicon Dioxide (SiO2)

Schist

Mica Schist (contains muscovite/biotite and quartz)