Mineral With Metamorphic Or Sedimentary Host

White Quartz

Silicon Dioxide (SiO2)

Lapis Lazuli (in Matrix)

Lazurite-bearing Metamorphic Rock (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2

Ruby and Diamond in Gold Setting

Corundum (Al2O3) and Diamond (C)

Quartz Vein in Siltstone

SiO2 (Quartz) on clastic sedimentary matrix

Rough Star Sapphire (Corundum)

Al2O3 (Aluminum Oxide)

Lapis Lazuli

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

Geode or Concretion

Silica-based Concretion / Quartz Geode

Agate

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3) with Chromium traces

Tiger's Eye

Silicon Dioxide (SiO2) with Limonite/Goethite pseudomorphs after Crocidolite

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Manganese Oxide Crust on Limestone

Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Fuchsite in Quartz

Muscovite (KAl2(AlSi3O10)(OH)2) containing Chromium + Quartz (SiO2)

Quartz (Milky/Crystalline)

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Emerald (Tumbled Beryl)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

Quartz (Druzy or Geode fragment)

Silicon Dioxide (SiO2)

Sandstone (with Lichen)

Arenite (composed primarily of SiO2)

Sapphire (Corundum)

Corundum (Al2O3)

Green Tourmaline

Verdelite (Silicate mineral); Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Amethyst (Quartz variety)

Amethyst [Silicon Dioxide (SiO2)]

Rhodonite

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

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium and/or Vanadium impurities

Blue Sapphire

Corundum (Al2O3 - Aluminum Oxide)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Quartz Vein in Matrix

Silicon Dioxide (SiO2)

Druzy Quartz on Sandstone

Silicon Dioxide (SiO2) on Sedimentary Host Rock

Lapis Lazuli (Raw Ore)

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)

Turquoise

CuAl6(PO4)4(OH)8·4H2O (Hydrous Phosphate of Copper and Aluminum)

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Pink Chalcedony

Silicon Dioxide (SiO2)

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Fuchsite on Quartz

Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities

Quartz crystal with Pyrite inclusions

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Chalcedony variety)

Silicon Dioxide (SiO2)

Turquoise

Hydrated phosphate of copper and aluminum; CuAl6(PO4)4(OH)8·4H2O

Gold-bearing Quartz

Auriferous Quartz (SiO2 with Native Gold inclusion)