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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

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

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



 
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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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