Geocronite - Xanda Mine, Brazil - 9,0 x 4,0 x 7,5 cm

Mineral: Geocronite
Locality: Xanda Mine, Virgem da Lapa, Jequitinhonha, Minas Gerais, Brazil
Dimensions: 9,0 x 4,0 x 7,5 cm

Description: Main crystal size: 6,5 cm Twins in an elbow shape made of two sharp-edged gray crystals covered with a brown coating; this variety of geocronite is apparently rich in bismuth Mim number 841 Photographer: Augustin de Valence (Ainu)