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English:Cassiterite bipyramids, chemical formula SnO2. locality Southeast slope Xuebaoding, Pingwu country, province Sichuan in China. Edge length ca. 30mm. Collection M.R. Français:Cassiterite bipyramids, formule brute SnO2. Échantillon extrait à Xuebaoding, Xian de Pingwu, province du Sichuan (Chine). Taille des arêtes : 30 mm. Collection M.R. Español:Casiteritas bipirámides, cuya fórmula química es SnO2, proveniente de la vertiente sureste del monte Xuebaoding, Songpan, provincia de Sichuan, China. Longitud del borde: ± 30 mm. Colección M.R.
