Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)

Red Garnet (likely Almandine or Pyrope)

Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)

Rhodonite

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Sandstone (Greywacke)

Arenite / Wacke (Mainly SiO2 with various lithic fragments)

Sandstone or Mudstone

Sedimentary Rock (Sandstone/Mudstone)

Smoky Quartz (with complementary stones in jewelry setting)

Smoky Quartz (Silicon Dioxide - SiO2)

Amber

Succinite (specifically for Baltic amber); Chemical formula approximately C10H16O

Quartz (Clear Quartz and Rose Quartz variants)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz in Matrix

Silicon Dioxide (SiO2)

Green Aventurine (Propably a tumbled variety)

Aventurine Quartz (SiO2 with inclusions of Fuchsite)

Citrine

Citrine (Silicon Dioxide - SiO2)

Agate (Chalcedony)

Silicon Dioxide (SiO2)

Mystic Topaz

Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)

Emerald (Beryl)

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Black Sapphire

Corundum (Al2O3 with iron and titanium impurities)

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Yellow Quartz (Citrine or Iron-Stained Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky or Cloudy variety)

Silicon Dioxide (SiO2)

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite inclusions

White Sapphire

Corundum (Al2O3)

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Black Tourmaline

Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)

Biotite / Black Mica

Biotite K(Mg,Fe)3AlSi3O10(F,OH)2

Clear Quartz

Crystalline Silicon Dioxide (SiO2)

Milky Quartz (or Vein Quartz)

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3 with Chromium traces)

Pyrite (on Quartz/Sulfide matrix)

Iron Sulfide (FeS2)

Garnet (specifically Almandine or Pyrope)

Almandine: Fe3Al2(SiO4)3 or Pyrope: Mg3Al2(SiO4)3

Rhodonite

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

Moonstone

Orthoclase Feldspar (containing Albite lamellae), (KAlSi3O8)

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate) - (Mn,Fe,Mg,Ca)SiO3

Graphite

Graphite (Native Carbon), Formula: C

Plagioclase Feldspar

NaAlSi3O8 – CaAlSi2O8 (Sodium-Calcium Aluminum Silicates)

Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions)

Silicon Dioxide (SiO2)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Clear Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz (Water-worn Pebble)

Silicon Dioxide (SiO2)

Green Quartz (Aventurine)

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

Aquamarine

Beryl (Be3Al2Si6O18 with Fe2+ trace elements)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)