Mineral And Metamorphic Rock

Gneiss

High-grade metamorphic rock (Gneiss)

Quartz Vein in Sedimentary Matrix

Silicon Dioxide (SiO2) with host rock

Milky Quartz with Country Rock contact

Silicon Dioxide (SiO2) in contact with Metamorphic/Igneous rock

Unakite

Epidotized Granite

Quartz Vein in Host Rock

Quartz (SiO2) in Mafic or Sedimentary Matrix

Milky Quartz

Silicon Dioxide (SiO2)

Almandine Garnet in Schist

Almandine, Fe3Al2(SiO4)3

Biotite Mica

Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)

Biotite (Black Mica)

Biotite (K(Mg,Fe++)3AlSi3O10(OH,F)2)

Gneiss (specifically Granitic Gneiss)

Gneissic Metamorphic Rock

Serpentinite

Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite: (Mg,Fe)3Si2O5(OH)4)

Epidote

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

Rhodonite

Rhodonite (MnSiO3)

Biotite Schist

Biotite Schist

Banded Rock (likely Quartz-rich)

Uncertain, likely a Metamorphic Rock (e.g., Gneiss or Schist) with prominent Quartz and other minerals

Gneiss

Gneissic Metamorphic Rock

Lapis Lazuli (Tumbled)

Lazurite-dominated contact metamorphic rock

Marble

Metamorphic rock composed of Recrystallized Carbonate Minerals (chiefly CaCO3)

Schist (Kyanite Schist)

Kyanite-Mica Schist (primarily Al2SiO5, KAl2(AlSi3O10)(OH)2, and SiO2)

Lapis Lazuli (Low Grade)

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

Gneiss

Foliated Metamorphic Rock (Gneiss)

Quartz Veined Rock (Likely Graywacke or Quartzite)

Silicon Dioxide (SiO2) veins in Metasedimentary matrix

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Gneiss (Metamorphic Rock)

Gneiss

Slickenside

Tectonic Fault Scarp Surface

Muscovite Mica

Muscovite: KAl2(AlSi3O10)(OH)2

Pebble

Clast (specifically a granule or small pebble)

Mica Schist

Schist (Crystalline metamorphic rock)

Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Garnet Schist

Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Kyanite

Kyanite (Al2SiO5)

Gneiss (High-grade Metamorphic Rock)

Gneiss (Metamorphic silicate rock)

Gneiss

High-grade Metamorphic Gneiss

Calcite (Yellow/Orange variety - sometimes called Honey Calcite)

Calcite

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Banded Gneiss with Quartz Vein

Foliated Metamorphic Rock (Gneiss)

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

Folded Schist / Gneiss (Metamorphic Rock)

Regional Metaphoric Folded Outcrop (predominantly Schist/Gneiss)

Quartz Vein in Schist

Quartz (SiO2) in Mica Schist

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Gneiss (with Quartzite and Biotite)

Gneiss containing SiO2 (Quartz), K(Mg,Fe)3AlSi3O10(OH)2 (Biotite), and (K,Na,Ca)AlSi3O8 (Feldspar)