Mineral With Metamorphic Or Igneous Host

Green Aventurine (Carved)

Silicon Dioxide (Quartz variant) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O(OH)2)

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(F,OH)2

Magnetite (Lodestone)

Iron(II,III) oxide (Fe3O4)

Emerald in Matrix

Beryl (Be3Al2Si6O18)

Dearest Jewelry (Multigemstone)

Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)

Chrysocolla (on host rock)

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) within metamorphic/igneous matrix

Emerald in Matrix (Quartz/Schist)

Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities

Emerald

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Yellow Sapphire

Corundum (Al2O3) with iron impurities

Milky Quartz

Silicon Dioxide (SiO2)

Quartz on Host Rock

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) with host rock (often Schist or Basalt)

Chrome Diopside

Magnesium Calcium Silicate (MgCaSi2O6) containing Chromium impurities

Quartz with impurities or Host Rock

SiO2 (Silicon Dioxide) with mixed silicates

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Garnet/Hematite and Basalt

Silicon Dioxide (SiO2) with Almandine (Fe3Al2Si3O12) and Basalt

Biotite on Quartz Matrix

Biotite - K(Mg,Fe)3(AlSi3O10)(OH,F)2 with Quartz (SiO2)

Quartz Vein

Silicon Dioxide (SiO2)

Quartz Vein in Host Rock

Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)

Greenstone

Greenschist (composed of chlorite, actinolite, and epidote)

Quartz (Small Pebble)

Silicon Dioxide (SiO2)

Epidote and Quartz in Basalt

Epidote [Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)] in Metabasalt

White Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Sapphire

Corundum (Al2O3)

Feldspar (Orthoclase)

Potassium Alveolar Silicate (KAlSi3O8)

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with Chromium-rich Fuchsite mica

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Chlorite Schist Inclusions

Quartz (SiO2) with Chlorite Group silicates (typically (Mg,Fe)3(Si,Al)4O10(OH)2)

Chalcopyrite in Quartz (Gold Ore Matrix)

CuFeS2 (Chalcopyrite) with SiO2 (Quartz)

Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz in Matrix

Silicon Dioxide (SiO2)

Gold-Bearing Quartz Ore

Crystalline Silicon Dioxide (SiO2) with Trace Aurum (Au)

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)