Mineral In Metamorphic Rock

Quartzite

Quartzite (primarily SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Quartzite with Iron Inclusions

Quartzite (primarily SiO2)

Ruby

Corundum (mineral species), variety: Ruby (Al2O3 with Cr3+ as the chromophore)

Garnet (likely Almandine or Pyrope)

Garnet Group (e.g., Almandine: Fe3Al2(SiO4)3; Pyrope: Mg3Al2(SiO4)3)

Yellow Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

River Pebble (Likely Quartzite or Chert)

Quartzite (primarily SiO2)

Yellow Quartzite (River Pebble)

Quartzite (primarily SiO2 with iron oxide inclusions)

Quartzite Pebbler

Quartzite (SiO2)

River Cobble (Quartzite)

Meta-orthoquartzite

Tiger's Eye

Tiger's Eye (a variety of Chalcedony, which is cryptocrystalline quartz). Chemical Formula: SiO2 with inclusions of crocidolite fibers.

Red Quartzite Slipper Stone

Quartzite (SiO2)

Arsenopyrite in Quartz Matrix

Arsenopyrite (FeAsS) with Quartz (SiO2)

Orthoclase Feldspar (or K-Feldspar)

Orthoclase (KAlSi3O8)

Mica Schist

Mica Schist

Serpentinite

Serpentinite (composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite)

Demantoid Garnet on Matrix

Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3

Mica Schist (with Golden/Biotite inclusions)

K(Mg,Fe)3AlSi3O10(F,OH)2 (Biotite), KAl2(AlSi3O10)(F,OH)2 (Muscovite)

Unakite

Unakite (Altered Granite consisting of Orthoclase KAlSi3O8, Epidote Ca2(Al,Fe)3(SiO4)3(OH), and Quartz SiO2)

Jasper with Epidote Vein

Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))

Quartzite

Quartzite (SiO2)

Unakite

Unakite (Epidotized Granite)

Serpentine (Nephrite-like Serpentine)

Serpentinite (Hydrous magnesium iron phyllosilicate)

Serpentine

Antigorite / Lizardite / Chrysotile mix; (Mg, Fe)3Si2O5(OH)4

Unakite

Epidotized Granite

River Rock (Quartzite)

Quartzite (SiO2)

Unakite

Epidotized Granite (SiO2, KAlSi3O8, Ca2(Al, Fe)3(SiO4)3(OH))

Quartzite Pebble

Quartzite (composed primarily of Silica, SiO2)

Quartzite (River Stone)

Quartzite (SiO2)

Yellow Quartzite

Quartzite (primarily SiO2)

Iron-stained Quartzite

Metamorphic Quartz (SiO2) with limonite/hematite staining

River Pebble (Quartzite/Chert)

Quartzite with inclusions (SiO2)

Quartzite

Quartzite (primarily SiO2)

Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)

Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)

Quartzite Pebble (River Rock)

Quartzite (mainly SiO2)

Quartzite River Rock

Quartzite (SiO2)

Quartzite Pebble

Metamorphic Quartzite (SiO2)

White Sapphire

Corundum (Al2O3)

Red Quartzite

Quartzite (SiO2 with iron oxide impurities)

Laterite

Laterite (no specific mineral formula as it's a rock type)

River Pebble (Quartzite/Siltstone mixture)

Silicon Dioxide (SiO2) mixture with varied clastic minerals

Osumilite in Granite Matrix

(K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30