Bertrandit التعريفات والمعاني == German == === Noun === Bertrandit m (strong, genitive Bertrandits, plural Bertrandite) (mineralogy) bertrandite ==== Declension ==== شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة bertrandite bertranditas bertrandites bertrandita Bertrandits Bertrandite Bertranditen Bertrand Bertrand's postulate