Sedimentary And Metamorphic Minerals

Graphite-rich metamorphic rock (probable graphite schist)

Graphite schist; predominantly graphite (C) with quartz and mica

Magnetite

Magnetite (Iron(II,III) oxide, Fe3O4)

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Yellow Calcite

Calcium Carbonate (CaCO3)

Orange Calcite

Calcium Carbonate (CaCO3)

Banded gneiss

Gneiss, commonly quartz–feldspar–mica gneiss

Blue-gray calcite (likely cleavage specimen)

Calcite, CaCO₃

Pyrite

Iron Sulfide (FeS2)

Gneiss

Gneiss

Gneiss

Gneiss

Likely hematite (iron ore)

Hematite, α‑Fe₂O₃

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz Point

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Zircon

Zircon (Zirconium Silicate - ZrSiO4)

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Quartz

Crystalline Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Blue Quartz

Silicon Dioxide (SiO2)

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Jasper

Silicon dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Magnetite

Magnetite (Fe3O4)

Magnetite (Lodestone)

Magnetite (Fe3O4)

Garnet in Schist (Garnetiferous Micaceous Schist)

Almandine Garnet, Fe3Al2(SiO4)3

Granitic Gneiss

Gneiss (quartz-feldspar-mica complex)

Green Calcite

Calcium Carbonate (CaCO3)

Bornite

Bornite (Cu5FeS4)

Quartz

Silicon Dioxide (SiO2)

Green Mica Schist

Mica Schist (Fuchsite or Chlorite variety)

Quartz Pebble

Silicon Dioxide (SiO2)

Gneiss

Gneiss (Metamorphic Rock)

Quartz (Clear/Milky)

Silicon Dioxide (SiO2)

Green Calcite

Calcium Carbonate (CaCO3)

Likely mica-rich schist

Mica schist, composed mainly of quartz and mica (muscovite and/or biotite)

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Banded gneiss

Gneiss, typically quartz–feldspar–mica assemblage

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-Grade Metamorphic Rock)

Quartz Pebble

Silicon Dioxide (SiO2)

Green Fuchsite and Quartz

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)