Mineral: Cumengeite
Locality: Amelia Mine, Santa Rosalía (El Boleo), Boleo District, Municipio Mulegé, Baja California Sur, Mexico
Dimensions: 2.5 x 2.5 x 2 cm / main crystal: 2.3 cm

Description: Mass: 10,5 g MIM number: 2240 6 smooth and well-formed cumengeite points, some with naturally truncated ends, others pointed, developed in epitaxy on the faces of a boleite crystal, the whole forming a set, considered large for the species, that is quite symmetrical with a beautiful deep blue color. This sample has been collected in the 1920s by the director of the Boléo mine, Albert Bellanger. Photographer: AINU / Augustin de Valence

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