poids (1) oxygène (1) méthane (1) Groenland (1) Rich people (1) Minerals (1) Origin (1) Wealth (1) Veins (1) Rocks (1) Oxygen (1) Nephelite (1) Methane (1) Hydrocarbons (1) Gases (1) Fluids (1) Fluid inclusions (1) Drops (1) Crystallization (1) Weight (1) Origin (1) Inclusions (1)