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Home > African Minerals – April 25 > MS1189 Senarmontite (Sénarmontite)

Senarmontite (Sénarmontite) - Sold

• Djebel Haminate
• Constantine Province
• Algeria

• 1.1 by 0.8 by 0.8 cm – Thumbnail specimen (fits into a 2.5 cm cube)

Dana (1851) named sénarmontite in honor of Henri Hureau de Sénarmont (1808-1862), a French mineralogist who first noted the species (Sénarmont, 1851). Senarmontite is a cubic oxide of antimony. Crystals are typically octahedral; this example is a complete single crystal 8 mm on edge. The crystal is more than 90% complete but with a few indentations and a missing corner. Likely dug in the 1970s, and found in loose clay, this crystal has darkened a bit to a dull light gray color. When fresh, the species is lustrous and colorless.