Metamorphic And Sedimentary

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4

Milky Quartz

Silicon Dioxide (SiO2)

Garnet (likely Almandine)

Almandine - Fe3Al2(SiO4)3

Quartzite

Quartzite (primarily SiO2)

Quartzite pebble

Metamorphic rock dominated by SiO2 (Quartz)

Unakite (Epidotized Granite)

Unakite; primarily composed of Epidote (Ca2(Al,Fe)3(SiO4)3(OH)), Orthoclase (KAlSi3O8), and Quartz (SiO2)

Anthracite Coal

Anthracite (Carbon-rich metamorphic coal)

Schist

Mica Schist (predominantly Muscovite or Biotite)

Biotite Schist

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

Migmatite

Migmatite (Mixed metamorphic-igneous rock)

Amphibolite with Hornblende

Amphibole-rich Metamorphic Rock (Ca2(Mg,Fe)5Si8O22(OH)2)

Greenschist (Greenstone)

Greenschist

Epidote

Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Biotite Schist

Biotite Schist (containing K(Mg,Fe)3AlSi3O10(OH)2)

Brecciated Quartzite

Brecciated Quartzite

Green Aventurine

Aventurine Quartz (SiO2 containing Fuchsite)

Yellow Aventurine

Quartzite (formula: SiO2 with inclusions)

Fuchsite in Quartz

Muscovite (KAl2(AlSi3O10)(OH)2) containing Chromium + Quartz (SiO2)

Rhodonite

(Mn,Fe,Mg,Ca)SiO3

Unakite

Unakite (Altered Granite)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Ruby (Raw Corundum)

Corundum (Al2O3) with Chromium traces

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)

Diorite (Gneissic)

Diorite

Marble

Recrystallized Calcite (CaCO3)

Quartz

Quartz (SiO₂)

Garnet (likely Almandine, Pyrope, or a blend)

Garnet group minerals: X3Y2(SiO4)3, where X and Y represent various metal ions (e.g., Almandine: Fe3Al2(SiO4)3, Pyrope: Mg3Al2(SiO4)3)

Quartz (likely)

Quartz (SiO2 - Silicon Dioxide)

Schist

Mica Schist (primarily consisting of muscovite, biotite, and quartz)

Epidosite (Epidote-rich rock)

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

Mica Schist

Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)

Greenschist with Quartz Veining

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

White Marble

Recrystallized Carbonate Rock (CaCO3)

Aventurine

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

Zoisite with Ruby

Anyolite (Ca2Al3(SiO4)3(OH) with Al2O3:Cr)

Corundum (Sapphire/Ruby in Matrix)

Corundum (Al2O3)

Unakite

Epidotized Granite

Unakite

Epidotized Granite

Muscovite

Muscovite (KAl2(AlSi3O10)(OH)2)

Mica in Quartz Host

Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)

Fuchsite

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)