Fluorescence occurs when a mineral absorbs ultraviolet radiation and immediately re-emits visible light. This phenomenon transforms ordinary-looking specimens into vivid displays of color under UV lamps. There is a decent amount of mineral collectors, who specialize on UV active minerals.

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The Munich Show finally returned in the 2024 in its full shape and size as before Covid. There was plenty of new minerals, plenty of interesting people and friends, and vast amount of deals available.

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Natrolite is a common sodium zeolite, forming highly aesthetic and fragile crystals. It has also important industrial use in mineral filters and absorbers.

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Matthew (Matthäus) Parshchikov is a young mineral collector, geosciences student, and photographer from Cologne, Germany.

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Zeolite locality Pustý vrch near Folknáře (Czech Republic) is a highly productive locality of thomsonite-(Ca), phillipsite-(Ca) and gismondine-(Ca).

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