Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)

Banded Gneiss

Gneiss (High-grade Metamorphic Rock)

Gneiss

Gneiss (High-grade metamorphic rock)

Tumbled green aventurine (probable)

Quartz variety: aventurine quartz, SiO₂, colored commonly by fuchsite mica

Nephrite Jade

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

Gneiss

Granitic Gneiss

Serpentinite

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

Polished pink feldspar-rich rock, possibly unakite

Likely unakite (epidote, pink potassium feldspar, and quartz); identification is uncertain from the photo

Tumbled greenstone (likely serpentine or nephrite jade)

Serpentine-group minerals, commonly antigorite; possibly nephrite, a fibrous aggregate of amphibole (actinolite–tremolite)

Gneiss Pebble

Gneiss

Black Tourmaline (Schorl)

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Serpentinite (Polished Serpentine)

Serpentinite (predominantly Antigorite/Lizardite/Chrysotile, (Mg,Fe)3Si2O5(OH)4)

Gneiss

Gneiss (High-grade metamorphic rock)

Green Aventurine

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

Gneiss

Metamorphic Gneiss

Gneiss

Metamorphic Gneiss

Greenstone

Metabasalt (Greenstone Facies)

Greenstone

Metamorphic mafic rock (greenschist facies)

Granitic Gneiss

Gneiss (Metamorphic rock of granitic composition)

Gneiss

Foliated Metamorphic Gneiss

Granite Gneiss

Gneiss (High-grade Metamorphic Rock)

Greenstone / Greenschist

Greenschist (composed of Chlorite, Epidote, Actinolite)

Quartz (in a rock matrix)

Quartz (SiO2)

Gneiss

Gneiss

Serpentinite

Serpentinite (complex silicate minerals including Lizardite, Antigorite, and Chrysotile)

Gneiss

Gneiss (High-grade metamorphic rock)

Gneiss

Gneissic Metamorphic Rock

Banded Gneiss Pebble

Banded Gneiss

Gneiss with Orthoclase Feldspar

Gneissic Metamorphic Rock with K-Feldspar inclusions

Granite Gneiss

Gneiss (quartz-feldspar dominated)

Gneiss

Gneiss (High-grade Metamorphic Rock)

Greenstone

Greenschist (metamorphosed mafic igneous rock)

Gneiss (Cobble)

Gneiss

Tumbled greenstone (likely serpentine or nephrite jade)

Serpentine-group minerals, chiefly antigorite/lizardite; possibly nephrite, a fibrous tremolite–actinolite aggregate

Serpentinite

Serpentinite (composed largely of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile: Mg3Si2O5(OH)4)

Mixed mineral and rock specimen collection

Assorted silicates, carbonates, oxides, and sulfides; individual species cannot be reliably identified from this image

Gneiss

Foliated Metamorphic Gneiss

Tumbled greenstone (likely serpentine or nephrite-like material)

Serpentine-group minerals, commonly antigorite/lizardite; possibly nephrite jade (actinolite-tremolite)

Tumbled greenstone (likely serpentine or nephrite jade)

Serpentine-group mineral, commonly antigorite [(Mg,Fe)₃Si₂O₅(OH)₄], or nephrite jade (interlocking tremolite–actinolite amphibole)

Gneiss

High-grade metamorphic rock (Gneiss)

Granite Gneiss

Gneiss (High-grade regional metamorphic rock)

Schist

Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)

Banded Gneiss

Gneiss (high-grade metamorphic silicate rock)