Mineral: Gypsum
Locality: Gibraltar Mine, Cueva de las Espadas, Naica, Municipio Saucillo, Chihuahua, Mexico
Dimensions: 14,0 x 11,0 x 8,0 cm
Description: Main crystal size : 14,1 cm
Thick, colorless, double terminated trapezoid driven through the middle onto a brown limonite gangue
MIM number 740
Photographer : Augustin de Valence (Ainu)
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