Mineral With Metamorphic Or Igneous Host

Gold in Quartz Matrix

Native Gold (Au) with Quartz (SiO2) and Slate/Shale

Gemstone Sand (Mineral Assortment)

Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)

Blue Apatite

Apatite - Ca5(PO4)3(F,Cl,OH)

Garnet

Almandine (Fe3Al2(SiO4)3)

Mica (Biotite or Phlogopite variety)

Phyllosilicate (complex mineral formula involving K, Mg, Fe, Al, Si, and O)

Milky Quartz

Silicon Dioxide (SiO2)

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Raw Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Ptygmatic Migmatite

Migmatite (consisting of Neosome and Paleosome fractions)

Dearest Ring (Gemstones)

Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)

Sapphire Rough (Corundum)

Corundum (Aluminum Oxide, Al2O3)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon dioxide (SiO2)

Citrine (Heat-treated Amethyst)

Silicon Dioxide (SiO2) with iron impurities

Labradorite (a variety of Feldspar)

Labradorite; (Na,Ca)(Al,Si)4O8 (a plagioclase feldspar)

Milky Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Yellow Quartz Pebble

SiO2 (Silicon Dioxide) with Iron Impurities

Milky Quartz

Silicon Dioxide (SiO2)

Biotite in Host Matrix

Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Milky Quartz on Matrix

Quartz (Silicon Dioxide, SiO2)

Quartz / Calcite Vein Rock

Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)

Quartz (with Iron staining)

Silicon Dioxide (SiO2)

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Blue Sapphire

Corundum (Al2O3 with iron and titanium trace elements)

Pink Feldspar

Orthoclase Feldspar (KAlSi3O8)

Quartz (Milky or Cloudy variety)

Silicon Dioxide (SiO2)

Quartz with Pyrite

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Rough Blue Sapphire

Corundum (Al2O3)

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Quartz Vein in Host Rock

Quartz (SiO2) in Mafic or Sedimentary Matrix

Milky Quartz with Hematite/Limonite staining

Silicon Dioxide (SiO2)

Smoky Quartz with Hematite inclusions

Silicon Dioxide (SiO2) with Fe2O3 inclusions

Milk Quartz (White) and Yellow Aventurine (Yellow)

Silicon Dioxide (SiO2)

Banded Chalcedony (Agate)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))