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Thulite (pink zoisite variety) is a Norwegian national stone and popular lapidary material. One of the well known thulite localities is Lia near Lom, Norway. Here is the trip report from the visit in summer 2017:
Munich show is probably the most important European mineral show. Munich 2017 was well worth it, many new mineral finds, many interesting mineral deals and offers.
Celestine (aka celestite) owes its name to its delicate blue (celestial) color. Although not a well-known mineral name, celestine has a certain cachet because the strontium it contains is famous for the brilliant red flashes it produces when used in fireworks.
Cerussite is a popular mineral specimen because of its nice crystals, bizzare complex twins and bright yellow fluorescence. It is a characteristic oxidation product of the most common lead sulfide, galena.
Chrysocolla is a bright colored hydrated copper sheet silicate and a minor ore of copper, usually appearing as secondary encrustations on primary copper ores. It is among the brightest of blue and blue-green minerals, accounting for its desirability.