Bilanga
Seen to fall in 1999 in Burkina Faso · 25 kg recovered · Diogenite
Bilanga is the heaviest of the six falls recorded in Burkina Faso. It is the most recent of the eight Diogenite falls.
- Recorded position
- 12.450° N, 0.083° W
The map is centred on Bilanga. Rings every 100 km; numbers match the table below.
Nearest recorded falls
The closest recorded fall to Bilanga is Ouadangou, 53 km to the north. Within 250 km lie six other recorded falls.
| # | Fall | Year | Class | Recovered | Distance |
|---|---|---|---|---|---|
| 1 | Ouadangou | 2003 | L5 | 4.4 kg | 53 km north |
| 2 | Bogou | 1962 | Iron, IAB-MG | 8.8 kg | 85 km east |
| 3 | Nadiabondi | 1956 | H5 | 8.2 kg | 128 km south-east |
| 4 | Guibga | 1972 | L5 | 288 g | 134 km north-west |
| 5 | Bawku | 1989 | LL5 | 1.6 kg | 152 km south |
| 6 | Pétèlkolé | 1995 | H5 | 189 g | 186 km north |
What Diogenite means
Diogenite is the label for a diogenite, a rock rich in the mineral orthopyroxene from deeper in the same crust as eucrites. By recovered mass Bilanga ranks second of the 8 Diogenite falls. The nearest other Diogenite fall is Tatahouine in Tunisia, 2,517 km away. In date order among Diogenite falls, the one before Bilanga is Tatahouine (1931, Tunisia).
Bilanga in Burkina Faso’s record
In date order Bilanga is number 5 of the 6 falls recorded in Burkina Faso, which run from 1924 to 2003. The fall recorded before Bilanga in Burkina Faso is Guibga (1972); the next is Ouadangou (2003).
The 1990s
Bilanga is one of 54 falls dated to the 1990s. Elsewhere, the record lists six other falls in 1999, among them Djoumine in Tunisia, Katagum in Nigeria, Sabrum in India.