Minéralogie. Arabie Pétrée (Râs Mahammed et côtes du Golfe Élanitique)...
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Minéralogie. Syène et les Cataractes. 1-4.7. Variétés du granit orient...
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Minéralogie. Arabie Pétrée (Mont Sinaï, Mont Horeb). 1.2. Sinaïtes; 3....
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1. Pourpre des roches, Purpura rupestris; 2. Pourpre tronquée, Purpura...
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Minéralogie. Éléphantine et environs de Syène. Roches primitives avec ...
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Minéralogie. Arabie Petrée (Vallée de Pharan, Mont Horeb). 1-9. Roches...
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Minéralogie. Montagne de Baram. Roches qui avoisinent d'anciennes mine...
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