Metamorphic Or Igneous Alteration

Emerald in Matrix

Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6

Bull Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Mica (Biotite or Phlogopite variety)

Phyllosilicate (complex mineral formula involving K, Mg, Fe, Al, Si, and O)

Black Star Diopside

Diopside (CaMgSi2O6) with Magnetite inclusions

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

New Jade (Serpentine)

Antigorite / Serpentine Group (Mg3Si2O5(OH)4)

Chakra Stone Bracelet (mixed gemstones)

Multi-mineral/Gemstone assembly (primarily Quartz variety beads)

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)

Sapphire (Corundum variety)

Sapphire (Al₂O₃)

Nephrite Jade

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

Nephrite Jade

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

Nephrite Jade

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

Micaceous Rock (likely Muscovite Schist/Gneiss or a Muscovite-rich Specimen)

Predominantly Muscovite (KAl2(AlSi3O10)(F,OH)2), often found in rocks like Muscovite Schist or Muscovite Gneiss.

Serpentine

Serpentine (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Nephrite Jade

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

Pyrite on Quartz (Fool's Gold in Quartz)

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Soapstone (Talc-Schist)

Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)

Serpentine

Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4)

Fuchsite in Quartz (Aventurine Quartz)

K(Al,Cr)2(AlSi3O10)(OH)2 (Fuchsite) + SiO2 (Quartz)

Epidote (likely Pistacite in Epidosite rock)

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

Charoite

Charoite; (K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4·nH2O

Nephrite Jade

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

Unakite

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

Unakite

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

Green Apophyllite and Stilbite on Quartz Cluster

Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)

Serpentine

Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Stichtite in Serpentine (Atlantasite)

Mg6Cr2CO3(OH)16·4H2O in Mg3Si2O5(OH)4

Serpentine

Antigorite, Lizardite, and Chrysotile (Mg3Si2O5(OH)4)

Serpentine (Lizardite)

Serpentine subgroup, Mg3Si2O5(OH)4

Amazonite

KAlSi3O8 (Potassium Aluminum Silicate)

Pyrite in Quartz

Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Kaolinite (Chalky Clay)

Kaolinite (Al2Si2O5(OH)4)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Serpentine (Nephrite-like Serpentine)

Serpentinite (Hydrous magnesium iron phyllosilicate)

Unakite

Unakite (altered granite)

White Jade (Nephrite)

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

Unakite

Unakite (Epidotized Granite)

Serpentine Jade (New Jade/Olive Jade)

Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite