The story of the settlement of Australia is the story of a remote penal colony unexpectedly turning into a cauldron of repeated mass migrations driven by the discovery of rich gold deposits. The gold discoveries were simply unbelievable, including the biggest nugget ever found!
Scheelite is an important ore of tungsten and exotic faceting material. Great scheelite specimens are also highly appreciated among mineral collectors.
Thulite (pink zoisite variety) is a Norwegian national stone and popular lapidary material. One of the well known thulite localities is Søre Lia Quarry near Lom, Norway. Here is the trip report from the visit in summer 2017:
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.
Prehnite is a common calcium silicate, which can form outstanding crystalline aggregates. Its nice crystal forms and pleasing colors make it a very popular among collectors. Prehnite is also used by jewelers and it is an important metamorphic index mineral.