Mineral: Mordenite and Quartz (variety chalcedony)
Locality: Chakan, Pune District (Poonah District), Maharashtra, India
Dimensions: 19,0 x 12,0 x 10,5 cm

Description: White balls in a basalt geode with calcite and chalcedony MIM number 836 Photographer: Augustin de Valence (Aïnu)

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