Glossaire de Minéralogie

Termes et définitions essentiels pour la minéralogie et la collection de minéraux.

Mineral Formation

Formed at or near the Earth's surface through precipitation from water, biological activity, or weathering …

A soil and rock type rich in iron and aluminum oxides (goethite, gibbsite), formed by …

The process of chemical alteration of a rock by hydrothermal fluids, involving the introduction or …

Formed from the cooling and crystallization of molten magma or lava. Minerals crystallize in a …

Mineral formation or alteration by hot gases and vapors emanating from a cooling magma. Responsible …

Formed from hot, mineral-rich fluids circulating through fractures in rock. A major source of metallic …

Large-scale metamorphism resulting from elevated temperature and pressure over wide areas, typically associated with mountain-building …

Minerals deposited from the evaporation of saline water bodies. Common evaporite minerals include halite, gypsum, …

Formed or transformed by heat, pressure, or chemically active fluids within the Earth's crust, without …

The process by which downward-percolating groundwater dissolves metals from oxidized surface zones and re-deposits them …

Extremely coarse-grained igneous rocks that form from the last residual fluids of a crystallizing magma. …

Metamorphism caused by heat from an igneous intrusion affecting the surrounding country rock. Produces calc-silicate …

The iron-rich, oxidized cap of a sulfide ore deposit formed by weathering. Often contains secondary …