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

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Gneiss

Metamorphic rock of high-grade regional metamorphism

Greenstone (Prase / Metavolcanic)

Metamorphosed volcanic rock (Greenstone)

Red gemstone, likely ruby

Corundum (Al₂O₃), colored red by chromium; identity cannot be confirmed from the photo

Serpentinite (serpentine-rich rock)

Serpentinite; chiefly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnetite, chlorite, and talc

Greenstone

Greenschist (Metamorphosed Mafic Rock)

Polished green aventurine (probable)

Quartz, SiO₂, with green fuchsite or chlorite inclusions

Pink Feldspar

Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8

Polished serpentine or green jasper pebble

Likely serpentine-group silicate, chiefly antigorite/lizardite; possibly iron-rich jasper

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)

Mixed Tumbled Stones Collection

Mixed Silicates and Carbonates (Quartz, Amorphous Silica, Carbonates)

Rough Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Schist

Schist (various mineral compositions)

Green-and-black mottled metamorphic rock (likely serpentinite)

Serpentinite, composed mainly of serpentine-group minerals (e.g., antigorite or lizardite); identification from the photo is provisional.

Greenstone / Serpentinite

Serpentinite (composed primarily of serpentine minerals: Mg3Si2O5(OH)4)

Tumbled green aventurine (probable)

Quartz aggregate, predominantly SiO₂, with green fuchsite mica inclusions

Polished greenstone (likely serpentine or altered basalt)

Serpentinite, chiefly serpentine-group minerals; possible chlorite/actinolite-bearing greenstone

Polished serpentine-rich rock (probable serpentinite)

Serpentinite; primarily serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible calcite, magnetite, and altered host minerals

Gneiss

Gneiss (High-grade regional metamorphic rock)

Granitic Pegmatite Intrusion in Host Rock

Pegmatite dike in amphibolite or schist

Gneiss with Quartz/Feldspar Vein

Felsic to intermediate gneiss

Weathered sandstone fragment

Quartz-rich sandstone, possibly ferruginous sandstone

Tumbled serpentine with dark magnetite/chromite matrix

Serpentinite; chiefly antigorite/lizardite, Mg3Si2O5(OH)4, with magnetite and possibly chromite

Hypersthene (or Enstatite/Ferrosilite)

Orthopyroxene series (Mg,Fe)SiO3 - specifically, historically hypersthene (intermediate member) now referred to as Enstatite (Mg-rich) or Ferrosilite (Fe-rich)

Banded Gneiss

Gneiss (quartz-feldspar-biotite metamorphic rock)

Raw Garnet Fragment

Nesosilicate Group (e.g., Almandine, Fe3Al2(SiO4)3)

Likely green serpentine or chlorite-rich rock

Serpentine-group minerals, commonly lizardite/magnesite-bearing serpentinite; exact identification requires testing

Quartz

Quartz (SiO2 - Silicon Dioxide)

Greenstone / Graywacke

Metagraywacke or Chlorite Schist

Smoky Quartz

SiO2 (Silicon Dioxide)

Likely garnet-bearing schist or weathered garnet amphibolite

Garnet (almandine, Fe₃Al₂Si₃O₁₂) in a mica-rich metamorphic matrix

Gneiss

High-grade regional metamorphic rock (Foliated)

Serpentine-rich greenstone (probable serpentine/soapstone fragment)

Serpentine-group minerals, chiefly antigorite/lizardite; possibly minor talc, chlorite, and carbonate

Greenstone / Greenschist

Greenschist (containing Chlorite, Epidote, Actinolite)

Banded Gneiss

Gneiss (Metamorphic high-grade, predominantly SiO2, Al2O3, K2O, Na2O)

Gneiss (Metamorphosed Pebble)

Gneiss with Quartz/Feldspar banding

Polished serpentine

Serpentinite; chiefly serpentine-group minerals (lizardite, antigorite, chrysotile), Mg₃Si₂O₅(OH)₄

Greenstone / Nephrite Jade

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

Gneiss

Gneiss

Gneiss

Gneiss (High-grade Metamorphic Rock)

Gneiss

Gneiss (High-grade Metamorphic Rock)

Quartzite

Metamorphosed Quartz Sandstone (SiO2)