Metamorphic Or Sedimentary

Green Quartzite (River Stone)

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

Green Quartzite

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

Slate

Foliated Metamorphic Rock (primarily clay minerals and micas)

River Pebble (Gneiss or Quartzite variant)

Course-grained Metamorphic Rock (likely SiO2 dominant)

Lapis Lazuli

Na8[Al6Si6O24]Sn (Lazurite-rich metamorphic rock)

Lapis Lazuli (Raw)

Lazurite-rich metamorphic rock; Na3Ca(Al3Si3O12)S

Slate with Pyrite Inclusions

Foliated Metamorphic Rock (with Iron Sulfide FE-S2)

Slate with Quartz Vein

Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)

Garnet

Almandine (Fe3Al2(SiO4)3)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Schist

Mica Schist (primarily Muscovite and Quartz)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions (Quartzite)

Ruby in Fuchsite (often sold as Ruby in Zoisite)

Corundum (Al2O3) in Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Dragon Blood Jasper (Epidote with Piedmontite or Quartz)

Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))

Serpentine

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

Shale

Lutaceous sedimentary rock

Jasper (with orbicular/unakitoid tendencies)

Silicon Dioxide (SiO2) with iron and epidote inclusions

Pink Jade (Dyed Quartzite)

Silicon Dioxide (SiO2) - primarily Quartzite or Quartz

Quartzite

Quartzite (primarily SiO2)

Fuchsite on Quartz

Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities

Iolite (Cordierite)

Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18

Unakite

Epidotized Granite

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Nuummite

Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)

Yellow Quartzite

Quartzite (primarily Silicon Dioxide - SiO2)

Red Quartzite River Stone

Quartzite (SiO2)

Schist

Mica Schist

Soapstone

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

Garnet Rhyolite

Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet

Almandine Garnet & Tumbled Citrine Quartz

Fe3Al2(SiO4)3 (Garnet) and SiO2 (Quartz)

White Marble (Tumbled)

Recrystallized Calcite (CaCO3)

Blue Quartzite (Aventurine)

Quartzite (primarily SiO2) with inclusions of Dumortierite or Magnesio-riebeckite

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Schist (Garnet-Mica Schist)

Garnetiferous Mica Schist (primarily Muscovite/Biotite and Almandine Garnet)

Quartzite

Quartzite (primarily SiO2)

Unakite (Tumbled)

Unakite (altered granite)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Green Aventurine

Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)3Si3O10(OH)2)

Schist

Mica Schist

Ruby in Zoisite (Anyolite)

Anyolite (Combination of Corundum and Zoisite)