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Imini mine, Imini area, Ouarzazate Province, Drâa-Tafilalet Region, Moroccoi
Regional Level Types
Imini mineMine
Imini areaArea
Ouarzazate ProvinceProvince
Drâa-Tafilalet RegionRegion
MoroccoCountry

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 30° North , 6° West (est.)
Margin of Error:~96km
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate


Sedimentary manganese deposit of Cretaceous age.
Located in the Atlas mountains, about 160 km southeast of Marrakech.

NOTE: The "pyrolusites" from Imini are in fact manganites partially replaced by pyrolusite (analyzed), so the best description of them would be: Pyrolusite replacing manganite.

Regions containing this locality

African PlateTectonic Plate
Northwest Africa MeteoritesMeteorite Fall Location
Atlas Mountains, North AfricaMountain Range
Anti-Atlas Mountains, MoroccoMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: Dana Slaughter Minerals dealer stock
Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
Reference: Econ Geol (1988) 83:93-117
Hollandite
Formula: Ba(Mn4+6Mn3+2)O16
Reference: Econ Geol (1988) 83:93-117
Janggunite
Formula: Mn5-x(Mn,Fe)1+xO8(OH)6
Reference: Force, E.R., Back, William, Spiker, E.C., and Knauth, L.P. (1986): A ground-water mixing model for the diagenesis of the Imini manganese deposit (Cretaceous) of Morocco: Economic Geology, 81, 65-79.
Manganite
Formula: Mn3+O(OH)
Reference: Thein, J. (1990). Paleogeography and geochemistry of the “Cenomano-Turonian” formations in the manganese district of Imini (Morocco) and their relation to ore deposition. Ore Geology Reviews, 5(4), 257-291.
Pyrolusite
Formula: Mn4+O2
Reference: Econ Geol (1988) 83:93-117; Thein, J. (1990). Paleogeography and geochemistry of the “Cenomano-Turonian” formations in the manganese district of Imini (Morocco) and their relation to ore deposition. Ore Geology Reviews, 5(4), 257-291.
Quartz
Formula: SiO2
Reference: Dana Slaughter Minerals dealer stock

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Coronadite4.DK.05aPb(Mn4+6Mn3+2)O16
Hollandite4.DK.05aBa(Mn4+6Mn3+2)O16
Janggunite4.FG.05Mn5-x(Mn,Fe)1+xO8(OH)6
Manganite4.FD.15Mn3+O(OH)
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Manganite6.1.3.1Mn3+O(OH)
Miscellaneous
Janggunite6.4.7.1Mn5-x(Mn,Fe)1+xO8(OH)6
Group 7 - MULTIPLE OXIDES
AB8X16
Coronadite7.9.1.4Pb(Mn4+6Mn3+2)O16
Hollandite7.9.1.1Ba(Mn4+6Mn3+2)O16
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H ManganiteMn3+O(OH)
H JangguniteMn5-x(Mn,Fe)1+xO8(OH)6
CCarbon
C CalciteCaCO3
OOxygen
O ManganiteMn3+O(OH)
O PyrolusiteMn4+O2
O HollanditeBa(Mn64+Mn23+)O16
O CoronaditePb(Mn64+Mn23+)O16
O JangguniteMn5-x(Mn,Fe)1+xO8(OH)6
O CalciteCaCO3
O QuartzSiO2
SiSilicon
Si QuartzSiO2
CaCalcium
Ca CalciteCaCO3
MnManganese
Mn ManganiteMn3+O(OH)
Mn PyrolusiteMn4+O2
Mn HollanditeBa(Mn64+Mn23+)O16
Mn CoronaditePb(Mn64+Mn23+)O16
Mn JangguniteMn5-x(Mn,Fe)1+xO8(OH)6
FeIron
Fe JangguniteMn5-x(Mn,Fe)1+xO8(OH)6
BaBarium
Ba HollanditeBa(Mn64+Mn23+)O16
PbLead
Pb CoronaditePb(Mn64+Mn23+)O16

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Force, E.R., Back, William, Spiker, E.C., and Knauth, L.P. (1986): A ground-water mixing model for the diagenesis of the Imini manganese deposit (Cretaceous) of Morocco. Economic Geology, 81, 65-79.
Thein, J. (1990). Paleogeography and geochemistry of the “Cenomano-Turonian” formations in the manganese district of Imini (Morocco) and their relation to ore deposition. Ore Geology Reviews, 5(4), 257-291.
Gutzmer, J.; Beukes, N. J.; Rhalmi, M.; Mukhopadhyay, J. (2006): Cretaceous karstic cave-fill manganese-lead-barium deposits of Imini, Morocco. Economic Geology 101, 385-405.


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