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Lake Alaotra, Alaotra-Mangoro, Madagascari
Regional Level Types
Lake AlaotraLake
Alaotra-MangoroRegion
MadagascarCountry

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Type:
Mindat Locality ID:
2268
Long-form identifier:
mindat:1:2:2268:5
GUID (UUID V4):
0
Other Languages:
French:
Lac Alaotra, Alaotra-Mangoro, Madagascar
German:
Lac Alaotra, Alaotra-Mangoro, Madagaskar
Italian:
lago Alaotra, regione di Alaotra Mangoro, Madagascar
Malagasy:
Farihy Aloatra, Faritr' Alaotra-Mangoro, Madagasikara
Russian:
Алаутра, Алаутра-Мангуру, Мадагаскар
Simplified Chinese:
阿劳特拉湖, 阿拉奧特拉-曼古羅區, 马达加斯加
Spanish:
Lago Alaotra, Región de Alaotra-Mangoro, Madagascar
Belarusian:
Алаўтра, Мадагаскар
Breton:
Lenn Alaotra, Alaotra-Mangoro, Madagaskar
Catalan:
Alaotra, Madagascar
Cebuano:
Farihy Alaotra, Alaotra Mangoro Region, Madagascar
Chuvash:
Алаутра, Мадагаскар Республики
Dutch:
Alaotrameer, Alaotra-Mangoro, Madagaskar
Esperanto:
Lago Alaotra, Alaotra-Mangoro, Madagaskaro
Estonian:
Alaotra järv, Madagaskar
Finnish:
Alaotrajärvi, Alaotra-Mangoro, Madagaskar
Georgian:
ალაოტრა, მადაგასკარი
Greek:
Λίμνη Αλαότρα, Αλαότρα-Μανγκόρο, Μαδαγασκάρη
Hungarian:
Alaotra-tó, Madagaszkár
Indonesian:
Danau Alaotra, Alaotra-Mangoro, Madagaskar
Japanese:
アラウチャ湖, アロチャ=マングル地域圏, マダガスカル
Lithuanian:
Alaotra, Alotra-Mangoras, Madagaskaras
Polish:
Alaotra, Alaotra-Mangoro, Madagaskar
Portuguese:
Lago Alaotra, Alaotra Mangoro, Madagáscar
Romanian:
Lacul Alaotra, Regiunea Alaotra-Mangoro, Madagascar
Serbian:
Алаотра, Мадагаскар
Serbo-Croatian:
Alaotra, Regija Alaotra-Mangoro, Madagaskar
Swedish:
Alaotra, Alaotra Mangororegionen, Madagaskar
Turkish:
Alaotra Gölü, Alaotra-Mangoro, Madagaskar


Lac Alaotra is situated about 180 km NE of the capital Antananarivo and is the biggest lake in Madagascar. Several mineral localities are found around the lake. In general, the localities west and northwest of the lake belong to the Amparafaravola District and the localities east and south of the lake belong to the Ambatondrazaka District . Numerous LCT pegmatites of the Beryl-Columbite subtype are located east of the lake, and LCT pegmatites of the Chrysoberyl subtype are southeast of the lake.

Minerals from these localities have often been brought to the market in the town of Ambatondrazaka. Thus, minerals from this region are frequently labelled "Ambatondrazaka" or "Lake Alaotra". For chrysoberyl specimens see especially the localities Andreba, Ambatosoratra, Masiadrivotra and Ampanorana Est .

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
ⓘQuartz
var. Amethyst
4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘvar. Sceptre Quartz4.DA.05SiO2
Group 9 - Silicates
ⓘBeryl
var. Aquamarine
9.CJ.05Be3Al2Si6O18
ⓘ9.CJ.05Be3Al2(Si6O18)
ⓘElbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

List of minerals for each chemical element

HHydrogen
Hⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Liⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Beⓘ Beryl var. AquamarineBe3Al2Si6O18
Beⓘ BerylBe3Al2(Si6O18)
BBoron
Bⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
Oⓘ Quartz var. AmethystSiO2
Oⓘ Beryl var. AquamarineBe3Al2Si6O18
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ Quartz var. Sceptre QuartzSiO2
NaSodium
Naⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alⓘ Beryl var. AquamarineBe3Al2Si6O18
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Siⓘ Quartz var. AmethystSiO2
Siⓘ Beryl var. AquamarineBe3Al2Si6O18
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ Quartz var. Sceptre QuartzSiO2
FeIron
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AuGold
Auⓘ Native GoldAu

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Lake_Alaotra
Wikidata ID:Q575679
GeoNames ID:1084742


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