Sedimentary Or Metamorphic (Low Grade)

Greenstone with Epidote or Quartz Vein

Epidiorite or Metabasalt (composed largely of Chlorite, Epidote, and Amphibole)

Greenstone (metamorphosed basalt)

Greenschist / Meta-basalt

Pyrite

Iron Sulfide (FeS2)

Muscovite Schist

Muscovite Mica Schist (KAl2(AlSi3O10)(OH)2)

Slate

Foliated Metamorphic Rock (composed mainly of clay minerals or micas)

Pyrite

Iron Sulfide (FeS2)

Greenstone

Greenschist / Greenstone (Chlorite-Epidote facies)

Slate with Quartz Vein

Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)

Phyllite

Phyllite (Foliated metamorphic rock)

Anthracite Coal

Anthracite (Carbon-based sedimentary-derived metamorphic rock)

Slate

Foliated Metamorphic Rock (composed mainly of Quartz, Illite, and Chlorite)

Epidote (likely Pistacite in Epidosite rock)

Epidote: Ca2(Al,Fe)3(SiO4)3(OH)

River Quartzite Siltstone

Quartz-rich Meta-siltstone (SiO2 dominated)

Pyrite

Iron Sulfide (FeS2)

Greenstone

Protolith of basalt, diabase, or gabbro; often contains minerals like chlorite, actinolite, and epidote

Greenschist (containing Epidote and Quartz)

Greenschist (Epidote-Chlorite-Actinolite Schist)

Chlorite (Small Flakes/Sand)

Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)

Greenstone / Chert

Cryptocrystalline Quartz (SiO2) or Altered Basalt

Greenschist

Greenschist (Chlorite Schist)

Prehnite

Calcium aluminum silicate hydroxide - Ca2Al(AlSi3O10)(OH)2

Epidote

Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Quartzite with Chlorite/Epidote

Metamorphosed Quartzite (SiO2)

Slate

Slate (foliated metamorphic rock, primarily composed of quartz, illite, chlorite, and micas)

Greenschist

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

Serpentine

Serpentinite (composed mainly of Group Minerals Antigorite, Chrysotile, and Lizardite; Mg3Si2O5(OH)4)

Pyrite

Iron Sulfide (FeS2)

Mica Schist (with Golden/Biotite inclusions)

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

Epidote

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

Greenstone

Greenschist (containing chlorite, epidote, and actinolite)

Slate

Foliated Metamorphic Rock (composed primarily of silica and alumina with iron and magnesium)

Epidote

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

Basalt with Epidote (Greenstone)

Epidote-bearing Metabasalt

Prehnite

Prehnite (Ca2Al2Si3O10(OH)2)

Quartz on Chlorite Schist

Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)

Anthracite Coal

Anthracite (Highly Metamorphosed Coal)

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Anthracite Coal

Low-grade metamorphic carbonaceous rock

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Epidote

Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

Epidote in Matrix (Dragon Stone variant)

Epidote with Quartz/Feldspar (Ca2(Al,Fe)3(SiO4)3(OH))

Greenstone

Greenschist (primarily composed of chlorite, actinolite, and epidote)

Greenschist

Greenschist (comprising Actinolite, Chlorite, and Epidote)