An artificial calcium fluoride monocrystal that weighs 63 kilograms that is on permanent loan from SCHOTT is also one of the natural treasures on exhibition.
Photo: terra mineralia/E. Mildner
Global Journey to Stone Treasures
5,000 rare minerals make ”terra mineralia” one of the largest and most significant exhibitions of its kind.
Basically all known rocks are based on minerals. Many of the crystalline ingredients tell scientists exciting stories of how the world originated billions of years ago. Presolar minerals that enter into our solar system as galactic dust can even be much older. Nevertheless, it is not only their cosmic age that is so fascinating, but also their unique variety and colorfulness. Natural minerals can crystallize out of aqueous solutions, hot magma melts or from the gas phase to take on various shapes and sizes of up to several meters. Mineralogy knows around 4,000 types of different compositions.
By taking place at the renovated Freudenstein Castle in Freiberg,
the exhibition ”terra mineralia” is being
held in a rather special environment. Photo: terra mineralia/D. Müller
Natural minerals come in a wide variety of shapes and can be several meters in length. Mineralogy knows approximately 4,000 different types of compositions. Photo: terra mineralia/D. Müller
Professor Gerhard Heide, Director of the TU Bergakademie Freiberg’s earth science collections, is particularly pleased about the item on loan: ”Not only because it is worth as much as a single family home, but also because it allows us to visualize how crystals are grown industrially today for use in high-tech applications.” This, in turn, reflects yet another important objective of the exhibition: to show how significantly minerals actually shape our own lives.
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