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Africain Islands (African Banks), Seychellesi
Regional Level Types
Africain Islands (African Banks)Group of Islands
SeychellesCountry

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PhotosMapsSearch
Type:
Group of Islands
Mindat Locality ID:
208327
Long-form identifier:
mindat:1:2:208327:1
GUID (UUID V4):
c83bbf29-6b1b-4859-a942-798e4b46f7a7
Other Languages:
French:
Banc African, Seychelles
German:
African Banks, Seychellen
Dutch:
African Banks, Seychellen
Norwegian:
Africaøyene, Seychellene
Polish:
African Banks, Seszele


The African Banks are the uninhabited northernmost islands of the Amirante Islands, of the Outer Islands of the Republic of Seychelles, in the western Indian Ocean.

The islands were discovered in 1797 and named Îlots Africains by Admiral Willaumez commanding the frigate La Régénérée. N

The African Banks lie about 230 km west of the city of Victoria on the main Seychelles island of Mahé, close to the edge of the Amirantes Bank. The nearest island is Remire Island, lying 27 km south. The group is a pseudo-atoll, has two small islands, which are gradually undergoing coastal erosion, and appear as just small sandstone ridges exposed only at low tide. The underwater banks extend over 4 kilometres (2.5 miles) north-south and 3 kilometres (1.9 miles) east-west and occupy a total area of about 10 square kilometres (3.9 square miles). With a shallow coral ring, it appears as an incomplete atoll. To the west of the coral ring, however, it is 19 to 36 metres (62–118 feet) deep.

The island group includes: D'Arros, Descroches, Poivre, Remire (Eagle), Marie Louise.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Calcite
Formula: CaCO3
'Hydrotroilite'
Formula: FeS · H2O ?
Hydroxylapatite
Formula: Ca5(PO4)3(OH)
Ilmenite
Formula: Fe2+TiO3
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Sylvite
Formula: KCl
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Sylvite3.AA.20KCl
Group 4 - Oxides and Hydroxides
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
Hydroxylapatite8.BN.05Ca5(PO4)3(OH)
Group 9 - Silicates
Zircon9.AD.30Zr(SiO4)
Unclassified
'Hydrotroilite'-FeS · H2O ?
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
H HydroxylapatiteCa5(PO4)3(OH)
H HydrotroiliteFeS · H2O ?
CCarbon
C CalciteCaCO3
OOxygen
O BaryteBaSO4
O CalciteCaCO3
O HydroxylapatiteCa5(PO4)3(OH)
O IlmeniteFe2+TiO3
O QuartzSiO2
O ZirconZr(SiO4)
O HydrotroiliteFeS · H2O ?
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
NaSodium
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
AlAluminium
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si QuartzSiO2
Si ZirconZr(SiO4)
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
P HydroxylapatiteCa5(PO4)3(OH)
SSulfur
S BaryteBaSO4
S PyriteFeS2
S HydrotroiliteFeS · H2O ?
ClChlorine
Cl SylviteKCl
KPotassium
K SylviteKCl
CaCalcium
Ca CalciteCaCO3
Ca HydroxylapatiteCa5(PO4)3(OH)
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Ti IlmeniteFe2+TiO3
FeIron
Fe IlmeniteFe2+TiO3
Fe PyriteFeS2
Fe HydrotroiliteFeS · H2O ?
ZrZirconium
Zr ZirconZr(SiO4)
BaBarium
Ba BaryteBaSO4

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/African_Banks
Wikidata ID:Q14701401


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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