Mineral Like Industrial Smelting Waste

White Quartz (Carved or Tumbled)

Silicon Dioxide (SiO2)

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Rose Quartz (or Quartzite)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Diamond (in jewelry mount)

Carbon (C)

Quartz pebble

Silicon Dioxide (SiO2)

Granitic Pegmatite Intrusion in Host Rock

Pegmatite dike in amphibolite or schist

Serpentinite

Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)

Green Calcite

Calcium Carbonate (CaCO3)

Pumice

Pumice (Volcanic glass with vesicular texture)

Diamond

Diamond (C)

Sandstone (Weathered Pebble)

Arenite (SiO2 primarily)

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions (Fe2O3)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Epidote

Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

Ferruginous Quartz

Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)

Pink Tourmaline (Rubellite)

Elbaite - Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3OH

Emerald (Tumbled Beryl)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

Sodalite

Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)

Corundum (Sapphire in Host Rock)

Corundum (Aluminum Oxide, Al2O3)

Quartz (Milky/Rose variety)

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Green Kyanite

Kyanite (Al2SiO5)

Smoky Quartz

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2 with iron impurities)

Dolomite on Prehnite (Saddle-shaped Dolomite)

Dolomite [CaMg(CO3)2] on Prehnite [Ca2Al(AlSi3O10)(OH)2]

Ferruginous Sandstone

Arenite with Iron-Oxide Cement (SiO2 with Fe2O3/FeO(OH))

Basalt (River Pebble)

Basalt (Mafic Extrusive Igneous Rock)

Quartzite (River Pebble)

Recrystallized Quartz (SiO2)

Anthracite Coal

Anthracite (Carbon based)

Quartzite

Quartzite (primarily SiO2)

Ironstone (Limonite/Hematite)

Ferruginous sedimentary rock (Fe2O3·nH2O / Fe2O3)

Mica Schist with Garnet inclusions

Mica Schist (primarily Muscovite and Biotite - KAl2(AlSi3O10)(OH)2)

Quartzite

Quartzite (primarily SiO2)

White Quartz Sphere

Silicon Dioxide (SiO2)

Granitoid (Granitic Rock)

Granitoid (Quartzo-feldspathic plutonic rock)

Quartz (Rock Crystal) with minor impurities

Quartz (SiO2)

Tourmaline (likely Schorl)

Tourmaline Group Mineral (e.g., Schorl for black varieties); (Na,Ca)(Li,Mg,Fe,Mn,Al)3Al6(BO3)3Si6O18(OH)4

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Anthracite Coal

Anthracite (Carbon-rich metamorphic coal)