Mineral In Metamorphic Rock

Greenstone / Diabase Porphyry

Porphyritic Diabase (Micro-gabbro)

Blue Sapphire

Corundum (Al2O3)

Amethyst

SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)

Quartz (Milky or Common Quartz)

Silicon Dioxide (SiO2)

Gneiss

Gneiss

Mica Schist

Mica Schist (Quartz-Biotit-Muscovite Schist)

Agate (Moss or Dendritic Agate)

Chalcedony (Silicon Dioxide, SiO2)

Quartz (likely a form of massive or vein quartz)

Quartz (SiO₂)

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Quartz (specifically Milky/Gray Quartz)

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Emerald In Matrix

Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium

Serpentine

Antigorite, Lizardite, or Chrysotile (Mg, Fe)3Si2O5(OH)4

Sandstone (with potentially metamorphic or basaltic bands)

Arenite / Lithic Wacke

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)

Mica Schist

Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)

Quartzite

Quartzite (Primary mineral: SiO2)

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky and Bull Quartz)

Silicon Dioxide (SiO2)

Chakra Stone (Composite / Man-made Bonded Gemstones)

Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)

Garnet

Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3

Moonstone

Orthoclase Feldspar (composed of alternate layers of orthoclase and albite), (K,Na)AlSi3O8

Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Quartzite

Quartzite (primarily SiO2)

Epidosite (Epidote-rich rock)

Epidotalite (primarily Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH))

Quartzite with Iron Inclusions

Metamorphic Quartzite (SiO2 with Fe2O3 trace impurities)

Red Quartzite (Strawberry Quartz)

Quartzite (SiO2 with iron oxide inclusions)

Green Schist

Greenschist (composed of Chlorite, Actinolite, and Epidote)

Rough Corundum (Sapphire/Ruby mixture)

Corundum (Aluminum Oxide, Al2O3)

Quartzite

Quartzite (Primary mineral: Quartz, SiO2)

Ferruginous Quartz (Iron-stained Quartzite)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Greenschist

Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz Mica Schist

Mica-Quartz Schist (Chemical: SiO2 + KAl2(AlSi3O10)(OH)2)

Gneiss (specifically a Granitic Gneiss)

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

River Cobble (Salt and Pepper Gneiss)

Gneiss (High-grade regional metamorphic rock)

Quartz / Vein Quartz

Quartz (Silicon Dioxide, SiO2)

Almandine Garnet in Matrix

Almandine (Fe3Al2(SiO4)3)

Magnetite (potentially as a Lodestone or within Ironstone)

Magnetite (Fe3O4)

Slate

Foliated Metamorphic Rock (primarily clay minerals and micas)

Rough Green QuartzITE / Green Aventurine

Aventurine Quartz (SiO2 + Cr-muscovite inclusions)