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RM1912   Glaucophane with rutile and muscovite

Oremo river, Chiavolino, Pollone, Biella, Piemonte, Italy

Glaucophane is an unusual species member of the amphibol group. This Italian locality is known worldwide for the good specimens of this species. It is usually covered with calcite, which once removed shows sculptural aggregates of striated tabular to prismatic translucent crystals, with an intense bluish-gray color, almost violet. In the cavities appear small orange crystals of rutile and groups of chromian muscovite (var. fuchsite). Pyrite crystals also can be found. A good sized and very aesthetic combination from this classic locality.

Size: 7.3 x 6.5 x 4.2 cm.
Main crystal: 23 mm.