Stones/Gems with C

• Crystal

  A real mineral; often means rock crystal (quartz)

• Coal

  A real rock; counts as a stone, though not a gem

• Citrine

  A quartz variety used as a gemstone

• calcite

  Real mineral/stone; widely known and natural

• Carnelian

  A real gemstone, a type of chalcedony

• cubic zirconia

  Man‑made diamond simulant, common gem substitute

• Celestine

  Real mineral (celestite); sometimes gemmy

• Clear quartz

  Variety of quartz, clear and colorless. Common crystal.

• cut diamond

  Diamond gemstone described by its cut, valid gem term

• corundum

  Hard mineral family incl. ruby & sapphire, key gemstone

• Celestite

  Mineral strontium sulfate, pale blue gem and collector stone.

• Cats eye

  Trade name for stones showing chatoyancy eye effect.

• chalk

  Soft white rock (limestone type), used as chalk sticks.

• carbuncle
• Callaïs

  Ancient turquoise‑like gem, prized by Greeks and Romans.

• Reklama
• Cordierite

  Mineral iolite; blue‑violet gem variety of cordierite.

• Chalcedony

  Cryptocrystalline quartz family, many colored gem types.

• Canary diamond

  Bright yellow diamond trade name, used in jewelry.

• Cerussite

  Lead carbonate mineral, sometimes cut as a soft gem.

• Cyanite

  Old name for kyanite, blue aluminosilicate gem

• cinnabar

  Mercury sulfide mineral, bright red pigment stone

• Clear diamond

  Diamond variety; “clear” is a common trade description 💎

Slová v zozname Stones/Gems with C pochádzajú od hráčov slovnej hry Meno, Mesto, Zviera, Vec.