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Kankan diamond District, Kankan Region, Guineai
Regional Level Types
Kankan diamond DistrictDistrict
Kankan RegionRegion
GuineaCountry

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Key
Latitude & Longitude (WGS84):
10° 22' 58'' North , 9° 18' 42'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:


Alluvial diamond mining. Primary diamond sources are Cretaceous diamondiferous kimberlite intrusions nearby.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Breyite
Formula: Ca3Si3O9
Reference: Joswig, W., Stachel, T., Harris, J.W., Baur, W.H., Brey, G.P. (1999): New Ca-silicate inclusions in diamonds—tracers from the lower mantle. Earth Planet. Sci. Lett: 173: 1–6; in: Jambor, J.L., Kovalenker, V.A., Roberts, A.C.(2000): New mineral names. Am. Min. 85: 876.
Diamond
Formula: C
Reference: Weiss, Y., Kessel, R., Griffin, W. L., Kiflawi, I., Klein-BenDavid, O., Bell, D. R., ... & Navon, O. (2009). A new model for the evolution of diamond-forming fluids: Evidence from microinclusion-bearing diamonds from Kankan, Guinea. Lithos, 112, 660-674.; Stachel, T., Harris, J., Aulbach, S., & Deines, P. (2002). Kankan diamonds (Guinea) III: δ13C and nitrogen characteristics of deep diamonds. Contributions to Mineralogy and Petrology, 142(4), 465-475.
Jeffbenite
Formula: Mg3Al2Si3O12
Reference: Nestola, F., Burnham, A. D., Peruzzo, L., Tauro, L., Alvaro, M., Walter, M. J., ... & Kohn, S. C. (2016). PREPUBLICATION: Tetragonal Almandine-Pyrope Phase, TAPP: finally a name for it, the new mineral jeffbenite. Mineralogical Magazine.
Majorite
Formula: Mg3(Fe2+,Si,Al)2(SiO4)3
Reference: Stachel, T., Harris, J., Aulbach, S., & Deines, P. (2002). Kankan diamonds (Guinea) III: δ13C and nitrogen characteristics of deep diamonds. Contributions to Mineralogy and Petrology, 142(4), 465-475.
Periclase
Formula: MgO
Reference: McCammon, C. A., Stachel, T., & Harris, J. W. (2004). Iron oxidation state in lower mantle mineral assemblages: II. Inclusions in diamonds from Kankan, Guinea. Earth and Planetary Science Letters, 222(2), 423-434.
Periclase var: Ferropericlase
Formula: (Mg,Fe)O
Reference: McCammon, C. A., Stachel, T., & Harris, J. W. (2004). Iron oxidation state in lower mantle mineral assemblages: II. Inclusions in diamonds from Kankan, Guinea. Earth and Planetary Science Letters, 222(2), 423-434.
Perovskite
Formula: CaTiO3
Reference: McCammon, C. A., Stachel, T., & Harris, J. W. (2004). Iron oxidation state in lower mantle mineral assemblages: II. Inclusions in diamonds from Kankan, Guinea. Earth and Planetary Science Letters, 222(2), 423-434.
'UM1999-35-SiO:Ca'
Formula: CaSi2O5
Reference: Joswig, W., Stachel, T., Harris, J.W., Baur, W.H., Brey, G.P. (1999): New Ca-silicate inclusions in diamonds—tracers from the lower mantle. Earth Planet. Sci. Lett: 173: 1–6; in: Jambor, J.L., Kovalenker, V.A., Roberts, A.C.(2000): New mineral names. Am. Min. 85: 876.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Group 4 - Oxides and Hydroxides
Periclase4.AB.25MgO
var: Ferropericlase4.AB.25(Mg,Fe)O
Perovskite4.CC.30CaTiO3
Group 9 - Silicates
Majorite9.AD.25Mg3(Fe2+,Si,Al)2(SiO4)3
Unclassified Minerals, Rocks, etc.
Breyite-Ca3Si3O9
Jeffbenite-Mg3Al2Si3O12
'UM1999-35-SiO:Ca'-CaSi2O5

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Group 4 - SIMPLE OXIDES
AX
Periclase4.2.1.1MgO
A2X3
Perovskite4.3.3.1CaTiO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Majorite51.4.3a.5Mg3(Fe2+,Si,Al)2(SiO4)3
Unclassified Minerals, Mixtures, etc.
Breyite-Ca3Si3O9
Jeffbenite-Mg3Al2Si3O12
Periclase
var: Ferropericlase
-(Mg,Fe)O
'UM1999-35-SiO:Ca'-CaSi2O5

List of minerals for each chemical element

CCarbon
C DiamondC
OOxygen
O MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
O Periclase (var: Ferropericlase)(Mg,Fe)O
O PerovskiteCaTiO3
O JeffbeniteMg3Al2Si3O12
O PericlaseMgO
O BreyiteCa3Si3O9
O UM1999-35-SiO:CaCaSi2O5
MgMagnesium
Mg MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Mg Periclase (var: Ferropericlase)(Mg,Fe)O
Mg JeffbeniteMg3Al2Si3O12
Mg PericlaseMgO
AlAluminium
Al JeffbeniteMg3Al2Si3O12
SiSilicon
Si MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Si JeffbeniteMg3Al2Si3O12
Si BreyiteCa3Si3O9
Si UM1999-35-SiO:CaCaSi2O5
CaCalcium
Ca PerovskiteCaTiO3
Ca BreyiteCa3Si3O9
Ca UM1999-35-SiO:CaCaSi2O5
TiTitanium
Ti PerovskiteCaTiO3
FeIron
Fe Periclase (var: Ferropericlase)(Mg,Fe)O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Weiss, Y., Kessel, R., Griffin, W.L., Kiflawi, I., Klein-BenDavid, O., Bell, D. R., ... and Navon, O. (2009) A new model for the evolution of diamond-forming fluids: Evidence from microinclusion-bearing diamonds from Kankan, Guinea. Lithos, 112, 660-674.
Contributions to Mineralogy & Petrology (xxxx) 140, 16-27.
Contributions to Mineralogy & Petrology (xxxx), 142, 465-475.

External Links


Other Regions, Features and Areas containing this locality

African PlateTectonic Plate
West AfricaUN Subregion

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