by Gelogia Team | Jul 11, 2026 | Mineralogy
Diagenesis is the collection of physical, chemical, and biological processes that alter sediments after deposition but before they undergo metamorphism. During diagenesis, loose sediments are transformed into solid sedimentary rocks through compaction, cementation,...
by Gelogia Team | Jul 10, 2026 | Mineralogy
Sedimentary mineral formation is the process by which minerals are produced, transported, deposited, or chemically precipitated at or near Earth’s surface. Unlike igneous minerals that crystallize from magma or metamorphic minerals that form under high...
by Gelogia Team | Jul 10, 2026 | Mineralogy
Metasomatism is the process by which the chemical composition of a rock changes due to the addition or removal of elements by chemically active fluids. Unlike ordinary metamorphism, which mainly changes a rock’s mineralogy through heat and pressure, metasomatism...
by Gelogia Team | Jul 10, 2026 | Mineralogy
Mineral veins are sheet-like bodies of minerals that fill fractures, faults, joints, or cracks within rocks. Most veins form when hot, mineral-rich hydrothermal fluids circulate through the Earth’s crust and deposit dissolved minerals as temperature, pressure,...
by Gelogia Team | Jul 10, 2026 | Mineralogy
Pegmatite minerals are the exceptionally coarse-grained minerals that crystallize from the final, volatile-rich stages of magma solidification. Pegmatites are famous for producing some of the largest mineral crystals on Earth, spectacular gemstones, and many of the...
