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⇱ Mikoboka phlogopite deposit, Belindo Mahasoa, Bekily District, Androy, Madagascar

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Mikoboka phlogopite deposit, Belindo Mahasoa, Bekily District, Androy, Madagascari
Regional Level Types
Mikoboka phlogopite depositDeposit
Belindo MahasoaCommune
Bekily DistrictDistrict
AndroyRegion
MadagascarCountry

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Latitude & Longitude (WGS84):
24° South , 45° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~16km
Type:
Köppen climate type:
Mindat Locality ID:
300074
Long-form identifier:
mindat:1:2:300074:1
GUID (UUID V4):
0
Other/historical names associated with this locality:
Concession 361 UM
Other Languages:
Malagasy:
Karieran'i Mikoboka, Kaominin'i Belindo-Mahasoa, Distrikan'i Bekily, Faritr' Androy, Madagasikara


A phlogopite-bearing pyroxenite worked for phlogopite. Mining started in 1926.
Worked by Mr. Alexandre Bougroff in the 1950s. (Concession 361 UM).
The pyroxenite body can be followed for about 10 km, and several mines are found along the body, Mikoboka being the largest and most famous.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


6 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Entries shown in red are rocks recorded for this region.

Detailed Mineral List:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Calcite
Formula: CaCO3
ⓘ Molybdenite
Formula: MoS2
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ 'Scapolite'
ⓘ Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
ⓘ Spinel
Formula: MgAl2O4
ⓘ 'Zeolite Group'
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘMolybdenite2.EA.30MoS2
Group 4 - Oxides and Hydroxides
ⓘSpinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘSepiolite9.EE.25Mg4(Si6O15)(OH)2 · 6H2O
ⓘ'Zeolite Group'9.G0.
Unclassified
ⓘ'Scapolite'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ SepioliteMg4(Si6O15)(OH)2 · 6H2O
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ SepioliteMg4(Si6O15)(OH)2 · 6H2O
Oⓘ SpinelMgAl2O4
Oⓘ ZirconZr(SiO4)
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ SepioliteMg4(Si6O15)(OH)2 · 6H2O
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ SpinelMgAl2O4
SiSilicon
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ SepioliteMg4(Si6O15)(OH)2 · 6H2O
Siⓘ ZirconZr(SiO4)
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ MolybdeniteMoS2
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ZrZirconium
Zrⓘ ZirconZr(SiO4)
MoMolybdenum
Moⓘ MolybdeniteMoS2

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Madagascar
Somali PlateTectonic Plate

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References

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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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