Metamorphic Mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Jade (Jadeite or Nephrite)

Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Jadeite (Jade)

Jadeite (NaAlSi2O6)

Dragon Blood Jasper

Epidote with Red Piedmontite (Chalcedony/Quartz variant)

Marble (polished)

Recrystallized Calcite (CaCO3)

Quartzite

Quartzite (SiO2)

Pegmatite (likely Granitic Pegmatite)

Pegmatite (a coarse-grained igneous rock, often with granitic composition)

Mica Schist

Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

Ferruginous Quartzite (Red Chert/Jasper-like)

Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)

Quartzite

Quartzite (primarily SiO2)

Green Aventurine

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

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

Soapstone

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

Quartzite (River Cobble)

Quartzite (predominantly SiO2)

Quartzite River Rock

Quartzite (primarily SiO2)

Greywacke (Briarcliff Schist/Gneiss)

Manhattan Schist / Fordham Gneiss complex

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)3Si3O10(OH)2)

Porcelain (White Ceramic)

Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)

White Jade (Mutton Fat Jade / Nephrite)

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

Nephrite Jade

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

Quartzite

Quartzite (primarily SiO2)

Red Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Quartzite

Quartzite (SiO2)

Nuummite

Orthoamphibole (mixture of Anthophyllite and Gedrite)

Garnet (Almandine)

Almandine (Fe3Al2(SiO4)3)

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock

Pink Quartzite

Quartzite (SiO2 with iron oxide impurities)

Quartzite

Quartzite (primarily SiO2)

Green Aventurine

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

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (mostly SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartzite

SiO2 (Silicon Dioxide)

Mica-rich Pegmatite

Pegmatite (rich in Muscovite and Biotite)

Anthracite Coal

Anthracite (Carbon-based organic sedimentary/metamorphic rock)

Shungite

Non-crystalline carbon (high-carbon metamorphic rock)

Coal (Anthracite)

Anthracite (Carbon-based organic sedimentary/metamorphic rock)

Quartzite with Iron Inclusions

Metamorphic Silicon Dioxide (SiO2) with impure Limonite/Hematite

Slate

Metamorphosed Shale (Fine-grained Foliated Metamorphic Rock)

Green Aventurine

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