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São Paulo island, São Pedro e São Paulo archipelago, Pernambuco, Brazili
Regional Level Types
São Paulo islandIsland
São Pedro e São Paulo archipelago- not defined -
PernambucoState
BrazilCountry

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Latitude & Longitude (WGS84):
0° 55' 1'' North , 29° 20' 43'' West
Latitude & Longitude (decimal):
0.91705,-29.34554
GRN:
N01W21
Type:
Island
Mindat Locality ID:
185537
Long-form identifier:
mindat:1:2:185537:4
GUID (UUID V4):
0
Other/historical names associated with this locality:
Challenger island; Southeast island
Name(s) in local language(s):
Arquipélago de São Pedro e São Paulo


Dunite and serpentinized mantle peridotite - a very rare example of an exposure of Earth's mantle above sea level. The island is only 0.3 hectares in size (a little less than one acre).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Biotite var. Titanium-bearing Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Forsterite
Formula: Mg2SiO4
ⓘ Hercynite
Formula: Fe2+Al2O4
ⓘ Hercynite var. Picotite
Formula: (Fe,Mg)(Al,Cr)2O4
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Hydroxylapatite
Formula: Ca5(PO4)3(OH)
ⓘ Hydroxylapatite var. Carbonate-rich Hydroxylapatite
Formula: Ca5(PO4,CO3)3(OH,O)
ⓘ Jadeite
Formula: Na(Al,Fe3+)Si2O6
Description: (listed as "pyroxene (chiefly the jadeite, enstatite, and diopside molecules)")
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Potassic-chloro-hastingsite
Formula: KCa2(Fe2+4Fe3+)(Si6Al2)O22Cl2
ⓘ 'Scapolite'
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘHercynite4.BB.05Fe2+Al2O4
ⓘvar. Picotite4.BB.05(Fe,Mg)(Al,Cr)2O4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘHydroxylapatite
var. Carbonate-rich Hydroxylapatite		8.BN.05Ca5(PO4,CO3)3(OH,O)
ⓘ8.BN.05Ca5(PO4)3(OH)
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2SiO4
ⓘZircon9.AD.30Zr(SiO4)
ⓘJadeite9.DA.25Na(Al,Fe3+)Si2O6
ⓘPotassic-chloro-hastingsite9.DE.15KCa2(Fe2+4Fe3+)(Si6Al2)O22Cl2
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Scapolite'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Biotite
var. Titanium-bearing Biotite'		-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
Hⓘ HydroxylapatiteCa5(PO4)3(OH)
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
CCarbon
Cⓘ Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
OOxygen
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
Oⓘ ForsteriteMg2SiO4
Oⓘ HercyniteFe2+Al2O4
Oⓘ HydroxylapatiteCa5(PO4)3(OH)
Oⓘ JadeiteNa(Al,Fe3+)Si2O6
Oⓘ ZirconZr(SiO4)
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Oⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ JadeiteNa(Al,Fe3+)Si2O6
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ ForsteriteMg2SiO4
Mgⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Mgⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ HercyniteFe2+Al2O4
Alⓘ JadeiteNa(Al,Fe3+)Si2O6
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Alⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Alⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
SiSilicon
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ ForsteriteMg2SiO4
Siⓘ JadeiteNa(Al,Fe3+)Si2O6
Siⓘ ZirconZr(SiO4)
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pⓘ Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
Pⓘ HydroxylapatiteCa5(PO4)3(OH)
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
CaCalcium
Caⓘ Hydroxylapatite var. Carbonate-rich HydroxylapatiteCa5(PO4,CO3)3(OH,O)
Caⓘ HydroxylapatiteCa5(PO4)3(OH)
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CrChromium
Crⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ HercyniteFe2+Al2O4
Feⓘ JadeiteNa(Al,Fe3+)Si2O6
Feⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Feⓘ Biotite var. Titanium-bearing BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Potassic-chloro-hastingsiteKCa2(Fe42+Fe3+)(Si6Al2)O22Cl2
ZrZirconium
Zrⓘ ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate
Atlantic OceanOcean

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

Washington, Henry S. (1929) Dahllite from St. Paul's Rocks (Atlantic) American Mineralogist, 14 (10) 369-372
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