Note: The mineral species Viséite is not listed in our database for this locality. This specimen may be misidentified or the mindat list of minerals at this locality may be incomplete.
For a long time this appearance was believed to be the only Belgian zeolite mineral. It was discovered in 1888 on a place between Richelle and Visé by G. Césaro and described as a zeolite in 1942 by J. Mélon. Viséite has never been accepted as a true mineral name but it is often locally referred as a very small light blue to yellowish fragile and loose shell-shaped material.
Image width: 4 mm.
Image width: 4 mm.
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Photo added: 31st Jan 2008