Name for prismatic crystals of Danburite, often covered with or enclosing Chlorite scales and also enclosing needles of Tourmaline.
Originally described from Piz Vallatscha, Medel Valley, Grischun (Grisons; Graubünden), Switzerland.
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(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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