SOLD – Gold & Emerald mine concession (Madagascar) Mananjary
General Info – Gold & gemstone mining in Mananjary Madagascar
MADAGASCAR MINING CONCESSIONS
+/- 5000 = Total of all mining concessions in Madagascar
+/- 1800 = Total of gold mining concessions in Madagascar
+/- 45 = Total of gold mining concessions in the immediate vicinity of our concession.
All 45 concessions are in the topographic square “Q52” (see the map of Madagascar) where our concession is located.
The fact that so many other active gold mining operations are in the immediate vicinity of our concession proves that this is an area of extremely high potential.
About gold in Mananjary region
Gold and gemstones are one of several natural resources that have increased mining activity in Madagascar.
The history of gold and gemstone mining in Madagascar can be traced back to the early 20th century when extractions from the alluvial deposits were widely spread across the island.
The Ampoasary River, a tributary of Mananjary River, is known to have hosted the major alluvial gold deposits on the island.
The island of Madagascar is known to host primary gold and gemstone deposits regarded as hard rock mesothermal lodes. This is a quartz-hosted type of gold deposit which are often very high-grade and hold very good potential for mining. These type of deposits contribute about 20 percent of gold deposits at world level, but they have only begun to be worked in Madagascar on any real scale.
Some of the gold and gemstone deposits in Madagascar also occur in stone belts, quartz reefs and quartz veins. It is also on record that the gold deposits can be found as diffused mineral. Some of these deposits are being worked by artisan miners, but many of them require advanced technology to mine and exploit on a commercial level.
One of the difficulties that Madagascar needs to deal with is the prevalence of illegal mining going on within the country.
Of course, the word “illegal” generally holds negative connotations. In reality, this mining activity is primarily taking place by people who have limited resources and are simply trying to live a better life. In the process their mining is unregulated, and as a result it commonly causes damage to natural resources.
The island of Madagascar still holds huge potential for gold and gemstone mining and prospecting for both large and small-scale miners. It has a wide spread of deposits with high grade value, which when tapped into can bring about great life changing opportunities to both the local community as well as the miners themselves.
The largest economically viable lode deposits are yet to be mined on large scale.
SEE MORE ABOUT GOLD FROM THIS REGION ON EXTERNAL LINK by Dr. Camillo Premoli, attention to chapter 7.2.7 (GOLD IN VOHILAVA-AMPASARY REGION):
About emeralds in Mananjary region
An emerald mining district located 30 km SW of the town of Mananjary at the eastern coast of Madagascar. Mining started in this area around the middle of 1970s, first at Ambodibakoly. Several open pit mines were worked in the period 1983 to around 1995, and produced several thousand kgs of emerald of different sizes and quality.
The emeralds were formed cause to metasomatic processes related to the Pan-African tectonometamorphic event. Emerald crystals up to many centimeters long, formed inside the pegmatites at the contact with the hosting basic rocks. They also formed outside the pegmatite in a phlogopitic unit that was derived by the reaction of the basic gneiss with the fluids liberated by the pegmatitic magma during the cooling down phase.
The emerald crystals produced in the area are of superior quality for gem industry. An abundance of emeralds, with crystals weighing up to 1 kg and a total of some 1000 kg, have been mined. The most famous mine is Morafeno. One of the world’s largest emerald specimens, a 536-kilogram specimen named “Heaven’s Gift Emerald” was mined by the Société Orgaco of France mined the 536-kilogram in 2007.
The mines and emerald deposits can be found in two main areas, roughly divided by the main road RN25. Along RN25 there are two important market villages, Kianjovato and Irondo. In the beginning of the mining period specimens of emerald were brought to the markets and sold to gem dealers at these easily accessible villages. Thus emerald specimens from this area has been labelled as coming from Kianjovato or Irondro.
The emerald mines in the northern area (called “North zone” by Cheilletz, A. et al. 2001) is are mainly located in the Ambalahosy Nord Commune, north of Ikanjovato village (and the Ikanjovato Commune) and the RN25 road, between the Mananjary river and Vohipaky mountain.
The emerald mines in the southern area (called “South zone” by Cheilletz, A. et al. 2001) is are mainly located in the Andonabe Commune, south of Irondo and the RN25 road, south and east of the Analatsitevena mountain.
SEE MORE ABOUT EMERALDS FROM THIS REGION ON EXTERNAL LINK by Dietmar Schwarz (Gübelin Gem Lab):
© S. MA. R. A. G. D. Madagascar Company for Research, Analysis, Geology and Diagnosis of Mining Concessions Société Malgache pour la Recherche, l'Analyse, la Géologie, Diagnose et les ventes des Concessions Minières (en cours d'établissement)