Mineral In Metamorphic Rock

Quartz (Milky/Crystalline)

Silicon Dioxide (SiO2)

Quartz Vein in Pelite (Metamorphic Rock)

Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)

Muscovite Mica

Muscovite / KAl2(AlSi3O10)(OH)2

Banded Gneiss

Gneiss (Metamorphic Rock)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Gneiss (Metamorphic Rock)

Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)

Slate with Quartz Vein

Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)

Eclogite

Eclogite (Omphacite + Pyrope)

Mica Schist

Foliated Metamorphic Rock (rich in Muscovite or Biotite)

Garnetiferous Pegmatite

Pegmatite with Almandine Garnet and Muscovite

Agate

Agate (Silicon Dioxide, SiO2)

Moonstone

Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8

Drill Core Samples (Varied Lithology)

Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)

Gneiss

Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)

Pyrite

Iron Sulfide (FeS2)

Grey Agate (Tumbled)

Silicon Dioxide (SiO2)

Greenschist

Greenschist (chlorite-epidote schist)

Schist

Mica Schist (Medium-grade Metamorphic Rock)

Banded Slate or Siltstone with Quartz/Calcite Veins

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

Gneiss

Gneiss (a metamorphic rock)

Gneiss

Gneissic Metamorphic Rock

Garnet Schist

Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)

Quartz Crystal

Silicon Dioxide (SiO2)

Biotite Schist (likely)

Biotite Schist (rock), Biotite (mineral)

Gneiss

Gneiss (Metamorphic rock of variable composition, typically SiO2 rich)

Quartz on Schist

Silicon Dioxide (SiO2) on Foliated Metamorphic Rock

Quartz Vein in Host Rock

Hydrothermal Quartz (SiO2) in Slates/Schists

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Tiger's Eye

Silicon dioxide (SiO2) with fibrous inclusions of crocidolite

River Stone (Granitic Gneiss)

Foliated Granitic Gneiss

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Gneiss

Foliated Metamorphic Rock (Gneiss)

Gneiss (High-Grade Metamorphic Rock)

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

Emerald in Matrix (Quartz/Schist)

Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities

Gneiss (Pebble)

Gneiss

Quartzite with inclusions

Metamorphic Rock (Mainly SiO2)

Serpentinite (often called Jade or Nephrite substitute)

Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)

Epidote

Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Quartz Vein in Sedimentary Matrix

Silicon Dioxide (SiO2) with host rock