Metamorphic (Low Grade)

Blue Quartz (Dumortierite Quartz)

Quartz (SiO2) with inclusions of Dumortierite (Al7(BO3)(SiO4)3O3)

Clear Quartz

Silicon Dioxide (SiO2)

Rough Garnet (likely Almandine or Pyrope)

Garnet group; Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3

Smoky Quartz

Smoky Quartz (SiO2 - Silicon Dioxide with aluminum impurities)

Rainbow Moonstone

White Labradorite (formula: (Na,Ca)(Al,Si)4O8)

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (specifically Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Quartzite

Quartzite (chiefly SiO2)

Porcelain (White Ceramic)

Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)

Green Quartzite

Quartzite (SiO2)

Shungite

Non-crystalline carbon (Fullerenes / Carbon-60)

Nephrite Jade

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

Lapis Lazuli

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite and other associated minerals)

Lapis Lazuli

Lapis Lazuli (Aggregate primarily of Lazurite: (Na,Ca)8(AlSiO4)6(S,SO4,Cl,1-2) with Calcite and Pyrite)

Quartzite (Yellow/Orange variety)

Quartzite (composed primarily of Silica, SiO2)

Nephrite Jade

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

Petrified Wood

Silicified Wood (SiO2)

Lapis Lazuli (polished cabochon/sphere)

Na8[Al6Si6O24]Sn with accessory minerals (Pyrite, Calcite)

Schist

Schist (various mineralogical compositions including mica, chlorite, talc, etc.)

Orthoclase Feldspar

Potassium aluminum silicate (KAlSi3O8)

Quartz with Pyrite

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Yellow Quartz (Citrine/Gold Quartz)

Silicon Dioxide (SiO2)

Blue Sapphire

Corundum (Al2O3 with trace Titanium and Iron)

Blue Sapphire

Corundum (Al2O3)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Nuummite

Nuummite (Ortho-amphibole rock, primarily Anthophyllite and Gedrite)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Moonstone (Green Moonstone / Garnierite)

Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Garnierite

Smoky Quartz

Quartz (Silicon Dioxide) - SiO2

Citrine

Silicon Dioxide (SiO2)

Moonstone

Orthoclase (Potassium aluminum silicate - KAlSi3O8)

Yellow Jade (Nephrite)

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

Charoite

Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)

Serpentinite

Serpentinite (composed primarily of mineral group (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Nephrite Jade

Calcium Magnesium Iron Silicate Hydroxide - Ca2(Mg,Fe)5Si8O22(OH)2

Carrara Marble

Metamorphosed Limestone (principally Calcium Carbonate, CaCO3)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)

Eclogite

Eclogite (composed primarily of Omphacite and Pyrope Garnet)

Marble

Recrystallized Limestone (CaCO3)

Quartzite

Quartzite (primarily SiO2)