Igneous And Metamorphic

Greenstone

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Nephrite Jade

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

Diorite Gneiss

Foliated Diorite Gneiss

Gneiss

Gneiss

Gneiss

Gneiss

Greenschist / Greenstone

Greenschist facies metabasite

Dragon Blood Jasper

Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Massive Quartz with Host Rock

Silicon Dioxide (SiO2)

Greenstone (Epidote/Chlorite Schist)

Metabasalt (composed primarily of Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH) and Chlorite (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)

Epidote

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

Glacial Cobble (likely Granitic or Gneissic)

Granite/Gneiss Glacial Erratic

Green Schist

Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)

Gneiss (River Cobble)

Gneiss (Foliated Metamorphic Rock)

Gneiss

Gneiss (Metamorphic high-grade)

Greenstone Pebble

Metabasalt (often containing chlorite, actinolite, or epidote)

Ruby Zoisite

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

Greenstone / Nephrite Jade

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

Greenschist

Greenschist (Chlorite-actinolite schist)

Gneiss (Banded Gneiss)

Gneiss

Healer's Gold (Pyrite and Magnetite in Schist)

Magnetite (Fe3O4) and Pyrite (FeS2) in Mica Schist

Nephrite Jade

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

Gneiss

Gneiss

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Greenschist

Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)

Greenstone (Metabaltic/Greenschist)

Chlorite schist / Meta-basalt

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Banded Gneiss

Gneiss (High-grade metamorphic rock)

Gneiss

High-grade foliated metamorphic rock

River Cobble (Gneiss/Migmatite)

Gneissic Metamorphic Rock (composed mainly of Quartz, Feldspar, and Biotite)

Greenschist (Chlorite Schist)

Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)

Green Aventurine and Clear Quartz

Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss

Gneiss

Corundum (Ruby variety)

Aluminium oxide (Al2O3)

Schist

Mica Schist (formula variable based on mineral content, typically containing [K,Al,Fe,Mg,Si,O,H])

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (SiO2)

Biotite (Black Mica)

Biotite [K(Mg,Fe)3(AlSi3O10)(F,OH)2]

Orthoclase Feldspar

Potassium Aluminum Silicate (KAlSi3O8)

Hematite

Iron(III) oxide (Fe2O3)

River Stone (Granitic Gneiss)

Foliated Granitic Gneiss