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Tranquillity Base (Apollo 11 landing site), Mare Tranquillitatis (Sea of Tranquility), The Mooni
Regional Level Types
Tranquillity Base (Apollo 11 landing site)Landing Site
Mare Tranquillitatis (Sea of Tranquility)- not defined -
The MoonMoon

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PhotosMapsSearch
07852470014946248277172.jpg
Apollo 11 landing site

Tranquillity Base, Mare Tranquillitatis, The Moon
07917330014946307793604.jpg
Science experiments at Tranquility Base

Tranquillity Base, Mare Tranquillitatis, The Moon
09604940014946309444706.jpg
Buzz Aldrin's bootprint in the lunar soil

Tranquillity Base, Mare Tranquillitatis, The Moon
07852470014946248277172.jpg
Apollo 11 landing site

Tranquillity Base, Mare Tranquillitatis, The Moon
07917330014946307793604.jpg
Science experiments at Tranquility Base

Tranquillity Base, Mare Tranquillitatis, The Moon
09604940014946309444706.jpg
Buzz Aldrin's bootprint in the lunar soil

Tranquillity Base, Mare Tranquillitatis, The Moon
07852470014946248277172.jpg
Apollo 11 landing site

Tranquillity Base, Mare Tranquillitatis, The Moon
07917330014946307793604.jpg
Science experiments at Tranquility Base

Tranquillity Base, Mare Tranquillitatis, The Moon
Latitude & Longitude:
0° 38' 33'' North , 23° 30' 18'' East
Latitude & Longitude (decimal):
0.64269,23.50525
GeoHash:
G#: s80ewuupb
GRN:
N01E17
Type:
Landing Site
Mindat Locality ID:
3256
Long-form identifier:
mindat:1:2:3256:1
GUID (UUID V4):
b3423984-17bf-4bfb-bf18-3471472947a9
Other/historical names associated with this locality:
Statio Tranquillitatis


Tranquility Base (Latin: Statio Tranquillitatis) is the site on the Moon where, in July 1969, humans first landed and walked on another celestial body for the first time. On July 20, 1969, Apollo 11 crew members Neil Armstrong and Buzz Aldrin landed their Apollo Lunar Module Eagle at approximately 20:17:40 UTC. Armstrong exited the spacecraft six hours 39 minutes after touchdown, followed 19 minutes later by Aldrin. The astronauts spent two hours 31 minutes examining and photographing the lunar surface, setting up several scientific experiment packages, and collecting 47.5 pounds (21.55 kg) of dirt and rock samples for return to Earth. They lifted off the surface on July 21 at 17:54 UTC.

Tranquility Base was named by Aldrin and Armstrong, and first announced by Armstrong when the Lunar Module Eagle landed. Its lunar coordinates are 00Β°41β€²15β€³N, 23Β°26β€²00β€³E, in the south-western corner of the lunar lava-plain called Mare Tranquillitatis ("Sea of Tranquility").

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals. 2 (TL) - type locality of 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:

β“˜ 'Alkali Feldspar'
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Armalcolite (TL)
Formula: (Mg,Fe2+)Ti2O5
Type Locality:
Description: first described in 100 to 300 millimicron sized grains
β“˜ Chevkinite-(Ce)
Formula: Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
β“˜ Chromite
Formula: Fe2+Cr3+2O4
β“˜ Chromite var. Aluminian Chromite
Formula: Fe(Cr,Al)2O4
β“˜ 'Clinopyroxene Subgroup'
β“˜ Cristobalite
Formula: SiO2
β“˜ Fayalite
Formula: Fe2+2SiO4
β“˜ 'Fayalite-Forsterite Series'
β“˜ 'Glass'
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ Perrierite-(Ce)
Formula: Ce4MgFe3+2Ti2(Si2O7)2O8
β“˜ Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
β“˜ 'Pyroxene Group'
Formula: ADSi2O6
β“˜ Pyroxferroite
Formula: (Fe,Mn,Ca)SiO3
β“˜ Spinel
Formula: MgAl2O4
β“˜ Tranquillityite (TL)
Formula: (Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Type Locality:
β“˜ Tridymite
Formula: SiO2
β“˜ Troilite
Formula: FeS
β“˜ UlvΓΆspinel
Formula: TiFe2+2O4
References:
Vol.2: Chemical Isotope Analyses
Vol.3: Physical Properties). Geochimica et Cosmochimica Acta, Journal of The Geochemical Society and The Meteoritical Society, Pergamon Press Inc. New York, NY, USA.
Agrell, S. O., Boyd, F. R., Bunch, T. E., Cameron, E. N., Dence, M. R., Douglas, J. A. V., (1970) Titanian chromite, aluminian chromite and chromian ulvΓΆspinel from Apollo 11 rocks. Geochimica et Cosmochimica Acta Supplement, Volume 1. Proceedings of the Apollo 11 Lunar Science Conference held 5-8 January, 1970 in Houston, TX. Volume 1: Mineraolgy and Petrology. Edited by A. A. Levinson. New York: Pergammon Press, 1970., p.81
Schmitt, H.H., Lofgren, G., Swann, G.A., Simmons, G. (1970) The Apollo 11 samples: Introduction, Vol.1, 1-59. In: Levinson, A.A. (ed.) (1970) Proceedings of the Apollo 11 Lunar Science Conference, Houston Texas, January 5-8, 1970. (3 volumes: Vol.1: Mineralogy and Petrology

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
β“˜Chromite
var. Aluminian Chromite		4.BB.05Fe(Cr,Al)2O4
β“˜Spinel4.BB.05MgAl2O4
β“˜Chromite4.BB.05Fe2+Cr3+2O4
β“˜UlvΓΆspinel4.BB.05TiFe2+2O4
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Armalcolite (TL)4.CB.15(Mg,Fe2+)Ti2O5
β“˜Tridymite4.DA.10SiO2
β“˜Cristobalite4.DA.15SiO2
Group 9 - Silicates
β“˜Fayalite9.AC.05Fe2+2SiO4
β“˜Tranquillityite (TL)9.AG.90(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
β“˜Perrierite-(Ce)9.BE.70Ce4MgFe3+2Ti2(Si2O7)2O8
β“˜Chevkinite-(Ce)9.BE.70Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
β“˜Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Pyroxferroite9.DO.05(Fe,Mn,Ca)SiO3
Unclassified
β“˜'Pyroxene Group'-ADSi2O6
β“˜'Glass'-
β“˜'Alkali Feldspar'-
β“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
β“˜'Fayalite-Forsterite Series'-
β“˜'Clinopyroxene Subgroup'-
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
Oβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Oβ“˜ ChromiteFe2+Cr23+O4
Oβ“˜ CristobaliteSiO2
Oβ“˜ FayaliteFe22+SiO4
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
Oβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ Pyroxferroite(Fe,Mn,Ca)SiO3
Oβ“˜ SpinelMgAl2O4
Oβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Oβ“˜ TridymiteSiO2
Oβ“˜ UlvΓΆspinelTiFe22+O4
Oβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Oβ“˜ Chromite var. Aluminian ChromiteFe(Cr,Al)2O4
Oβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oβ“˜ Pyroxene GroupADSi2O6
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Mgβ“˜ Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
Mgβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ SpinelMgAl2O4
AlAluminium
Alβ“˜ SpinelMgAl2O4
Alβ“˜ Chromite var. Aluminian ChromiteFe(Cr,Al)2O4
Alβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siβ“˜ CristobaliteSiO2
Siβ“˜ FayaliteFe22+SiO4
Siβ“˜ Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
Siβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ Pyroxferroite(Fe,Mn,Ca)SiO3
Siβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Siβ“˜ TridymiteSiO2
Siβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Siβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siβ“˜ Pyroxene GroupADSi2O6
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ TroiliteFeS
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Caβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ Pyroxferroite(Fe,Mn,Ca)SiO3
Caβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Caβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
Tiβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Tiβ“˜ UlvΓΆspinelTiFe22+O4
Tiβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
CrChromium
Crβ“˜ ChromiteFe2+Cr23+O4
Crβ“˜ Chromite var. Aluminian ChromiteFe(Cr,Al)2O4
MnManganese
Mnβ“˜ Pyroxferroite(Fe,Mn,Ca)SiO3
FeIron
Feβ“˜ Armalcolite(Mg,Fe2+)Ti2O5
Feβ“˜ ChromiteFe2+Cr23+O4
Feβ“˜ FayaliteFe22+SiO4
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
Feβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ Pyroxferroite(Fe,Mn,Ca)SiO3
Feβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Feβ“˜ TroiliteFeS
Feβ“˜ UlvΓΆspinelTiFe22+O4
Feβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Feβ“˜ Chromite var. Aluminian ChromiteFe(Cr,Al)2O4
YYttrium
Yβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
ZrZirconium
Zrβ“˜ Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
CeCerium
Ceβ“˜ Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
Ceβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Tranquility_Base
Wikidata ID:Q732758


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

Burke, E.A.J. (2024) Van een terril via een vulkaan naar de maan. Geonieuws: 49(5): 117-128.
Agrell, S.O., Boyd, F.R., Bunch, T.E., Cameron, E.N., Dence, M.R., Douglas, J.A.V. (1970) Titanian chromite, aluminian chromite and chromian ulvΓΆspinel from Apollo 11 rocks. Geochimica et Cosmochimica Acta Supplement, Volume 1. Proceedings of the Apollo 11 Lunar Science Conference held 5-8 January 1970 in Houston, TX. Volume 1: Mineralogy and Petrology. Edited by A.A. Levinson. New York: Pergamon Press, 1970: 81.
Schmitt, H.H., Lofgren, G., Swann, G.A., Simmons, G. (1970) The Apollo 11 samples: Introduction, Vol.1, 1-59. In: Levinson, A.A. (ed.) (1970) Proceedings of the Apollo 11 Lunar Science Conference, Houston Texas, January 5-8, 1970. (3 volumes: Vol.1: Mineralogy and Petrology; Vol.2: Chemical Isotope Analyses; Vol.3: Physical Properties). Geochimica et Cosmochimica Acta, Journal of The Geochemical Society and The Meteoritical Society, Pergamon Press Inc. New York, NY, USA.
Anderson, A.T., Bunch, T.E, Cameron, E.N, Haggerty, S.E., Boyd, F.R., Finger, L.W., James, O.B., Keil, K., Prinz, M., Ramdohr, P., El Goresy, A. (1970) Armalcolite, a new mineral from the Apollo 11 samples. Geochimica et Cosmochimica Acta: 34: Supplement 1: 55-63.
Lovering, J.F., Wark, D.A., Reid, A.F., Ware, N.G., Keil, K., Prinz, M., Bunch, T.E., El Goresy, A., Ramdohr, P., Brown, G.M., Peckett, A., Phillips, R., Cameron, E.N., Douglas, J.A.V., Plant, A.G. (1971) Tranquillityite: a new silicate mineral from Apollo 11 and Apollo 12 basaltic rocks. Proceedings of the Second Lunar Science Conference: 1: 39-45.
Clark, J.R., Ross, M., Appleman, D.E. (1971) Crystal chemistry of a lunar pigeonite. American Mineralogist, 56, 888-908.
Muhling, J.R., Suvorova, A.A., Rasmussen, B. (2014) The occurrence and composition of chevkinite-(Ce) and perrierite-(Ce) in tholeiitic intrusive rocks and lunar mare basalt. American Mineralogist: 99(10): 1911–1921.
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