Willemite

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Attractive, bi-color Willemite coats the entirety of the original exposed matrix. The upper Willemite is a beautiful gray-blue, with excellent luster. Most of the blue Willemite is botryoidal, but there are a few exceptional, sharp, gemmy dodecahedrons that range up to several mm in size. The lower portion is coated with grayish-red Willemite, and the luster on this portion is equally good. Bi-colored Willemite is not unusual from Tsumeb, and this is a very good representation of that pattern. Under UV light, the Willemite glows different shades of blue.