Mineral (Metamorphic Pseudomorph)

Mica Schist

Mica Schist (Intermediate-grade Metamorphic Rock)

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Hematite

Hematite (Fe2O3)

Petrified Wood

Silicified wood (primarily SiO2)

Quartz (Water-worn pebble)

Silicon Dioxide (SiO2)

Blue Sapphire

Corundum (Al2O3)

Beryl (Emerald Variety)

Beryllium aluminum silicate (Be3Al2(SiO3)6) with chromium/vanadium traces

Rose Quartz

Silicon Dioxide with trace inclusions of dumortierite or titanium (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Smoky Quartz and Clear Quartz Geode

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Emerald in Matrix

Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6

Calcite

Calcium Carbonate (CaCO3)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Sunstone

Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)

Black Tourmaline (Schorl)

Sodium Iron Aluminum Borate Silicate (NaFe3Al6(BO3)3Si6O18(OH)4)

Green Aventurine

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

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Specularite (Specular Hematite)

Iron Oxide (Fe2O3)

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz

SiO2 (Silicon Dioxide)

Yellow Calcite

Calcium Carbonate (CaCO3)

Milky Quartz

Silicon Dioxide (SiO2)

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz

Smoky Quartz (SiO2 - Silicon Dioxide with aluminum impurities)

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)

Agate (translucent slice)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Gneiss

Foliated Metamorphic Rock (Gneiss)

Staurolite (Fairy Stone)

Staurolite (Fe2+2Al9Si4O23(OH))

Quartz Pebble (Iron-Stained)

Quartz (Silicon Dioxide - SiO2)

Rose Quartz

Rose Quartz (SiO2)

Charoite

Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)

Gneiss (Metamorphic Rock)

Gneiss (high-grade regional metamorphic rock)

Orthoclase Feldspar (Salmon variety)

Orthoclase, KAlSi3O8

Garnet-Bearing Schist

Almandine Garnet Micaceous Schist

Greenstone / Greenschist

Chlorite schist / Meta-basalt

Coarse Sand Grain / Lithic Fragment

Clastic Sediment (Lithic fragment or Quartz/Feldspar grain)

Jadeite

Jadeite (NaAlSi2O6)