Sedimentary And Metamorphic Minerals

Banded Slate or Siltstone with Quartz/Calcite Veins

Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)

Quartz

Quartz (SiO₂)

Blue Quartzite (Aventurine variety)

Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite

Garnet (likely Almandine)

Almandine Garnet, Fe3Al2(SiO4)3

Milky Quartz

Silicon Dioxide (SiO2)

Jadeite Jade

NaAlSi2O6 (Sodium Aluminum Silicate)

Botryoidal Goethite

Goethite (α-Fe3+O(OH))

Quartzite with Chlorite

Metamosphosed Quartz Sandstone (SiO2 with (Mg,Fe)3(Si,Al)4O10(OH)2 inclusions)

Yellow Quartzite Pebble

Quartzite (primarily Silicon Dioxide - SiO2)

Granitic Gneiss

Gneiss (Polymetamorphic Granitic Gneiss)

Gneiss (Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)

Black Marble

Recrystallized Calcite (CaCO3)

Muscovite Schist

Mica Schist (primarily KAl2(AlSi3O10)(OH)2)

Zoisite with Ruby

Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Jadeite Jade

Sodium Aluminum Silicate (NaAlSi2O6)

Ferruginous Sandstone (Ironstone Nodules)

Ferruginous Sandstone with Limonite/Goethite coating (Fe2O3·H2O)

Milky Quartz

Silicon Dioxide (SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Aquamarine (Pendant) and Jasper (Beads)

Beryllium aluminum silicate (Be3Al2Si6O18) with Chalcedony (SiO2)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Magnetite (Lodestone)

Magnetite (Fe3O4)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Yellow Ocher (Limonite)

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

Schist

Crystalline Schist (often containing Muscovite, Biotte, or Quartz)

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Blue Quartzite

Blue Quartzite (Primary mineral: Quartz, SiO2 with magnesio-riebeckite or crocidolite inclusions)

Marble

Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Marble

Metamorphic rock composed of Recrystallized Carbonate Minerals (chiefly CaCO3)

Pyrite

Iron Disulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Hematite

Iron(III) oxide (Fe2O3)

Pyrite

Iron Disulfide (FeS2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Yellow Aventurine

Quartzite with inclusions (SiO2)

Garnet (Almandine)

Almandine, Fe3Al2(SiO4)3

Clear Quartz

Silicon Dioxide (SiO2)