Schist
Mica Schist (Composition typically involves Muscovite, Biotite, Quartz, and Feldspar)
metamorphic
Category
Metamorphic Or Sedimentary
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Biotite Mica in Host Rock
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2 mixed with SiO2)
metamorphic
Greenshist / Chlorite Schist
Chlorite schist (contains (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
metamorphic
Mica Schist
Foliated Metamorphic Rock (Schist)
metamorphic
Serpentine
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
metamorphic
Banded Gneiss
Gneiss (pronounced "nice")
Metamorphic Rock
Diopside (likely Chromian Diopside)
Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.
mineral
Yellow Quartzite
Metamorphic Rock (Mainly SiO2)
metamorphic
Lapis Lazuli
Lazurite-rich metamorphic rock
metamorphic
Glaucophane Schist (Blueschist)
Blueschist facies metamorphic rock
metamorphic
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite with inclusions
Metamorphic Rock (Mainly SiO2)
metamorphic
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Slate
Slate (Foliated Metamorphic Rock)
metamorphic
Lapis Lazuli
Lazurite-rich metamorphic rock
metamorphic
Slate
Slate (foliated metamorphic rock)
metamorphic
Quartzite
Metamorphic Quartzite (primarily SiO2)
metamorphic
Diorite (Gneissic)
Diorite with possible metamorphic foliation
igneous
Quartzite Pebble
Metamorphic Quartzite (predominantly SiO2)
metamorphic
Schist
Schist (Crystalline metamorphic rock)
metamorphic
Quartzite
Metamorphic Quartz Sandstone (SiO2)
metamorphic
Quartzite (River Pebble)
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Green Slate (Greenstone)
Metamorphic shale (varied composition)
metamorphic
Slate
Low-grade Metamorphic Rock
metamorphic
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite with Quartz Veining
Metamorphic Quartz Rock (SiO2)
metamorphic
Lapis Lazuli (Fragment)
Lazurite-rich metamorphic rock
metamorphic
Blue Quartzite
Quartzite (primarily SiO2 with inclusions like Dumortierite or Magnesio-riebeckite)
metamorphic
Orthoclase Feldspar (or K-Feldspar)
Orthoclase (KAlSi3O8)
Mineral
Garnet
Garnet Group (Silicate Minerals)
mineral
Epidote (likely Unakite component or Epidosite)
Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))
metamorphic
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheets with Quartz)
metamorphic
Pink Marble
Recrystallized Limestone (Calcium Carbonate, CaCO3)
metamorphic
Schist
Mica Schist (Medium-grade Metamorphic Rock)
Metamorphic
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Mineral
Red Garnet (Pyrope or Almandine)
Garnet Group (A3B2(SiO4)3)
mineral
Orthoclase Feldspar
Potassium Feldspar (KAlSi3O8)
mineral
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Rainbow Moonstone
White Labradorite (Plagioclase Feldspar), (Na,Ca)(Al,Si)4O8
gemstone