Metamorphic (Low Grade)

Red Garnet

Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)

Tanzanite

Blue Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with Iron Oxide inclusions)

Lapis Lazuli

Lazurite (primary mineral component), (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Quartzite

Quartzite (SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Charoite

Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Lapis Lazuli

Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Smoky Quartz

SiO2 (Silicon Dioxide with aluminum impurities)

Pyrite

Iron Sulfide (FeS2)

Quartzite

Metamorphosed sandstone (primarily SiO2)

Pyrite

Pyrite (FeS2)

Anthracite Coal

Coal (predominantly carbon)

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Serpentine (Serpentinite)

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

Mica Schist

Crystalline Schist (often primarily Muscovite or Biotite sheet silicates)

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2)

Milky Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Lapis Lazuli

Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, Pyrite, and Calcite)

Lapis Lazuli

Complex metamorphic rock primarily composed of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Quartzite

Quartzite (SiO2)

Lapis Lazuli

Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)

Green Quartz (Prasiolite)

Crystalline Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartzite (River Cobble)

Quartzite (SiO2)

Green Aventurine

Aventurine (Silicon dioxide, SiO₂)

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Turquoise (Dyed Howlite/Magnesite imitation)

CuAl6(PO4)4(OH)8·4H2O (Target mineral) / MgCO3 (Magnesite substrate)

Quartz crystal with Pyrite inclusions

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Anthracite Coal

Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)

Lapis Lazuli

Lazurite-rich metamorphic rock; (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Lapis Lazuli

Complex rock primarily of Lazurite ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2), with Pyrite and Calcite

Lapis Lazuli

Lazurite-rich metamorphic rock (approx. (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)