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I recently purchased two specimens of low quality Fluorite from Yaoganxian mine that contain the usual inclusions of "fibrous sulfosalts", just to run a few analyses (see: http://www.mindat.org/photo-289752.html). This material is generally sold as ...
On a business trip to Florence, I incidentally found that, despite the well-known Mineralogical gallery of the Natural History Museum is [sadly enough] currently closed for renovation, a special exhibition entitled “Cristalli – The world’s ...
In a previous thread, the nature of the orange crystals often found at La Ricamarie, Saint-Etienne, Loire, Rhône-Alpes, France was questionned. Such crystals are most often assigned to as Realgar and some Mindat contributors suggested these could ...
Some years ago, I obtained a small specimen from the former collection of Dr. Hans-Jürgen Wilke, labelled as “Benjaminite” and coming from the Outlaw Mine, Round Mountain District, Nye Co., Nevada, USA (Type locality for Benjaminite). This ...
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