Metamorphic Mineral

Quartzite

Quartzite (SiO2)

Rough Nephrite Jade

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

Yellow Quartzite (or Quartz River Pebble)

Silicon Dioxide (SiO2)

Yellow Quartzite (Orange Quartzite)

Silicon Dioxide (SiO2) with iron oxide staining

Epidote with Unakite characteristics

{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Quartzite

Quartzite (SiO2 silicon dioxide)

Green Quartzite (Aventurine-like)

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

Quartzite Pebble (Beach Stone)

Quartzite (primarily SiO2)

Quartzite (River Cobble)

Quartzite (Metamorphosed Quartz Sandstone, SiO2)

Quartzite (Ferruginous)

Recrystallized Quartz (SiO2) with Iron Oxide inclusions

Quartzite (or Milky Quartz pebble)

Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Quartzite

Quartzite (primarily SiO2)

Green Quartzite (River Stone)

Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)

Green Quartzite

Metamorphic Quartz (SiO2) with Chromium-rich inclusions (Fuchsite)

River Pebble (Gneiss or Quartzite variant)

Course-grained Metamorphic Rock (likely SiO2 dominant)

Anthracite Coal

Anthracite (Carbon-based sedimentary-derived metamorphic rock)

Slate with Pyrite Inclusions

Foliated Metamorphic Rock (with Iron Sulfide FE-S2)

White Marble (Industrial/Architectural)

Recrystallized Calcite (CaCO3)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Green Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Quartzite Pebble

Quartzite (primarily SiO2)

Garnet Schist

Garnetiferous Micaceous Schist

Quartzite

Quartzite (SiO2)

Beach Quartzite Pebble

Quartzite (primarily SiO2)

Tiger's Eye

Silicon dioxide (SiO2) with fibrous inclusions of crocidolite (riebeckite) that have been altered to limonite and then replaced by quartz

Serpentine

Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Quartz

Silicon Dioxide (SiO₂)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions (Quartzite)

Yellow Quartzite

Quartzite (primarily Silicon Dioxide - SiO2)

Aquamarine

Beryl (Be3Al2Si6O18), specifically the blue-green variety

Red Quartzite River Stone

Quartzite (SiO2)

Schist

Mica Schist

Quartzite with Chert inclusions

Metamorphosed Quartz-rich Rock (SiO2)

Quartz (Druzy) in host rock

SiO₂ (Silicon Dioxide) as Quartz, with unspecified host rock components (likely silicates and iron oxides)

Almandine Garnet

Iron aluminum silicate - Fe3Al2(SiO4)3

Pink Jade (Dyed Quartzite)

Silicon Dioxide (SiO2) - primarily Quartzite or Quartz

Quartzite

Quartzite (primarily SiO2)

Unakite

Epidotized Granite

Quartzite

Quartzite (primarily SiO2)