Metamorphic (Low Grade)

Aquamarine

Beryl (Be3Al2Si6O18 with iron traces)

Rough Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Mixed Tumbled Stones (Mostly Agate, Jasper, and Quartz)

Silicon Dioxide (SiO2)

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Rhodonite with Manganese Oxides

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2)

Lapis Lazuli

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

Lapis Lazuli

Complex rock primarily of Lazurite ((Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2), with Pyrite and Calcite

Lapis Lazuli

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

Quartzite

Quartzite (primarily SiO2)

Schist

Schist (various mineral compositions)

Coal (most likely Bituminous or Anthracite)

Coal (organic sedimentary rock)

Anthracite Coal

Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)

Citrine Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Lapis Lazuli

Lapis Lazuli (Rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, Pyrite, and Calcite)

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Lapis Lazuli

Complex metamorphic rock primarily composed of Lazurite ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2), Calcite, and Pyrite

Nephrite Jade

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

Nephrite Jade

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

Lapis Lazuli

Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)

Quartzite

Quartzite (SiO2)

Lapis Lazuli

Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)

Quartz crystal with Pyrite inclusions

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Emerald

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

Smoky Quartz and Clear Quartz Geode

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Blue Sapphire

Corundum (Al2O3)

Quartzite Pebble

Quartzite (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Rough Dark Green Sapphire

Corundum (Al2O3)

Garnet (Almandine)

Almandine, Fe3Al2(SiO4)3

Lapis Lazuli

Lapis Lazuli (Complex aggregate of Lazurite, Calcite, and Pyrite)

Nephrite Jade

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

Banded Gneiss

Gneiss (pronounced "nice")

Citrine (Quartz variant)

SiO2 (Silicon Dioxide)

Amethyst

Amethyst (Silicon Dioxide with iron impurities, SiO2)

Blue Quartzite

Quartzite (specifically a variety enriched with blue-coloring minerals)

Carnelian

Carnelian (a variety of Chalcedony, SiO ₂)