Metamorphic Rock (For Both Nephrite And Jadeite)

Nephrite Jade

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

Quartz pebble

Silicon dioxide (SiO2)

Polished serpentine (likely bowenite)

Serpentinite; predominantly antigorite/lizardite Mg₃Si₂O₅(OH)₄, possibly with magnetite and carbonate

Polished black stone, likely hematite or black tourmaline

Hematite (Fe₂O₃) or schorl tourmaline (NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Granular)

Silicon Dioxide (SiO2)

Tumbled green feldspar or serpentine

Likely microcline feldspar (KAlSi₃O₈) or green serpentine-group mineral; exact identification requires testing

Quartz (Milky/Clear Variety)

Silicon Dioxide (SiO2)

Quartz (Milky to Clear)

Silicon Dioxide (SiO2)

Polished dark stone, likely nephrite jade or serpentine

Tentatively nephrite (fibrous amphibole aggregate, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); possibly serpentine

Likely tumbled green mineral (possibly serpentine or aventurine)

Indeterminate; possibilities include serpentine-group minerals, nephrite, or green aventurine quartz

Sandstone (Quartzose)

Arenite (primarily SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz pebble

Silicon dioxide (SiO2)

Tumbled greenstone (likely serpentine or nephrite jade)

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

Quartz pebble with a conchoidal chip

Silicon dioxide (SiO2)

Polished dark-green stone, likely serpentinite

Serpentinite; predominantly serpentine-group minerals, commonly antigorite, lizardite, or chrysotile, with possible magnetite and minor pyroxene

Black Tourmaline (Schorl)

Sodium Iron Aluminum Borosilicate (NaFe2+3Al6(BO3)3Si6O18(OH)4)

Sandstone (Quartzose)

Arenite (SiO2 based)

Green serpentine or nephrite-like stone

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

Red gemstone ring, likely garnet or synthetic ruby

Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish

Quartz Pebble

Silicon Dioxide (SiO2)

Yellow Jade (Nephrite)

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

Quartzite

Quartzite (SiO2)

Quartz pebble

Silicon dioxide (SiO2)

Rainbow Moonstone

White Labradorite (formula: (Na,Ca)(Al,Si)4O8)

Milky Quartz with Fuchsite inclusion

Silicon Dioxide (SiO2) with Chromium-rich Muscovite

Polished Nephrite Jade

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

Quartz

Silicon Dioxide (SiO2)

Quartz (Clear/Crystalline)

Silicon Dioxide (SiO2)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Polished green cabochon, likely aventurine or serpentine

Quartz aventurine (SiO₂) or serpentine-group mineral; visual identification is uncertain

Quartz

Quartz (Silicon Dioxide, SiO2)

Sandstone (Greywacke/Lithic Sandstone)

Arenite / Lithic Sandstone

Sandstone (with potential Arkose/Lithic characteristics)

Arenite (Sedimentary rock composed of sand-sized grains)

Mixed mineral and rock specimen collection

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

Greenstone / Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Actinolitic Schist

Riverstone Quartz (Quartzite)

Silicon Dioxide (SiO2)

Tumbled brown banded agate beads

Agate, a banded variety of microcrystalline quartz (SiO₂)