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Bemainty, Didy, Ambatondrazaka District, Alaotra-Mangoro, Madagascari
| Regional Level Types | |
|---|---|
| Bemainty | Mining Area |
| Didy | Commune |
| Ambatondrazaka District | District |
| Alaotra-Mangoro | Region |
| Madagascar | Country |
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Latitude & Longitude (WGS84):
18° South , 48° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~33km
Type:
Köppen climate type:
Other Languages:
Malagasy:
Bemainty, Kaominin'i Didy, Distrikan' Ambatondrazaka, Faritr' Alaotra-Mangoro, Madagasikara
An alluvial occurrence near the Bemainty village, 35 km east of Ambatondrazaka town. Up to 50,000 people working a 2.5 km long stretch of river.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities3 valid minerals.
Detailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Graphite | 1.CB.05a | C |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Corundum | 4.CB.05 | Al2O3 |
| ⓘ | var. Sapphire | 4.CB.05 | Al2O3 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Graphite | C |
| O | Oxygen | |
| O | ⓘ Corundum | Al2O3 |
| O | ⓘ Corundum var. Sapphire | Al2O3 |
| O | ⓘ Zircon | Zr(SiO4) |
| Al | Aluminium | |
| Al | ⓘ Corundum | Al2O3 |
| Al | ⓘ Corundum var. Sapphire | Al2O3 |
| Si | Silicon | |
| Si | ⓘ Zircon | Zr(SiO4) |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
Localities in this Region
- Alaotra-Mangoro
- Ambatondrazaka District
Other Regions, Features and Areas containing this locality
AfricaContinent
African Plate
- Antenanarivo BlockOrogenic Belt
Madagascar
- ⭔Toamasina ProvinceProvince
Somali PlateTectonic Plate
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
References
Perkins, Rosey (2016) Sapphire rush in the jungle east of Ambatondrazaka, Madagascar: an expedition report October 21 st – 26 th 2016. http://www.roseyperkins.com/.
Michael S. Krzemnicki (2017) Kashmir-like’ sapphires from Madagascar entering the gem trade in large sizes and quantities. SFF Trade Alert, 1-6
Krzemnicki, Michael S. (2017) New Sapphires from Ambatondrazaka, Madagascar. Facette 23, Swiss Gemmological Institute SSEF. 15
Krzemnicki, Michael. S. , Cartier, Laurent E. , Hao, A.O., Wang, Zhou, Wei, Lefèvre, Pierre (2017) Sapphires from a New Deposit at Bemainty near Ambatondrazaka in Madagascar. InColor 35, International Colored Gemstones Association. 42-47
Pardieu, Vincent, Vertriest, Wim, Weeramonkhonlert, Vararut, Raynaud, Victoria, Atikarnsakul, Ungkhana, Perkins, Rosey (2017) Sapphires from the Gem Rush Bemainty area, Ambatondrazaka (Madagascar) Research News, Gemological Institute of America.
