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Tranquillityite

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Science experiments at Tranquility Base

Tranquillity Base, Mare Tranquillitatis, The Moon
Formula:
(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
Colour:
Dark red-brown
Specific Gravity:
4.7 (Calculated)
Crystal System:
Hexagonal
Name:
Named in 1971 by J. F. Lovering, D. A. Wark, A. F. Reid, N. G. Bunch, A. El Goresy, Paul Ramdohr, G. M. Brown, A. Peckett, R. Phillips, Eugene N. Cameron, J. A. V. Douglas, and A. G. Plant after its discovery locality at the Sea of Tranquility, the Moon.
Lunar rock samples brought back from the Moon by the Apollo 11 mission in 1969 were found to contain three minerals that had never been seen on Earth. Terrestrial occurrences for pyroxferroite and armalcolite were discovered in the next few years, but until 2011, tranquillityite was only known from returned moon rock samples and from lunar and martian meteorites. However, the mineral has now been discovered as an uncommon accessory phase in terrestrial mafic rocks, at six localities in Western Australia. [http://geology.gsapubs.org/content/40/1/83.abstract]


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Classification of TranquillityiteHide

Approved
Approval Year:
1971
9.AG.90

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
78.7.16.1

78 : Unclassified Silicates
7 :
14.10.33

14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf

Physical Properties of TranquillityiteHide

Transparency:
Translucent
Colour:
Dark red-brown
Density:
4.7(1) g/cm3 (Calculated)

Optical Data of TranquillityiteHide

Type:
Biaxial
RI values:
nα = 2.120(1)
2V:
Measured: 40°
Max Birefringence:
δ = 2.120
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Type:
Isotropic
Anisotropism:
weakly anisotropic
Dispersion:
r < v
Colour in reflected light:
grey
Pleochroism:
Non-pleochroic

Chemical Properties of TranquillityiteHide

Formula:
(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12
IMA Formula:
Fe2+8Ti3Zr2Si3O24
Common Impurities:
Hf,Al,Cr,Nb,Nd,Mn,Ca

Crystallography of TranquillityiteHide

Crystal System:
Hexagonal
Cell Parameters:
a = 11.69(5) Å, c = 22.25(10) Å
Ratio:
a:c = 1 : 1.903
Unit Cell V:
2,633.24 ų (Calculated from Unit Cell)

Type Occurrence of TranquillityiteHide

General Appearance of Type Material:
thin laths and sheaves of laths
Place of Conservation of Type Material:
The Lunar Science Institute, Houston, Texas
Geological Setting of Type Material:
Lunar basalts
Reference:
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

Synonyms of TranquillityiteHide

Other Language Names for TranquillityiteHide

Related Minerals - Nickel-Strunz GroupingHide

9.AG.EdgrewiteCa9(SiO4)4F2 Mon. 2/m : P21/b
9.AG.05AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05BrauniteMn2+Mn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05Braunite-IICaMn3+14(SiO4)O20Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.10LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2Trig. 3m : P3m1
9.AG.15MalayaiteCaSn(SiO4)OMon.
9.AG.15TitaniteCaTi(SiO4)OMon. 2/m : P21/b
9.AG.15VanadomalayaiteCaV4+(SiO4)OMon.
9.AG.15Natrotitanite(Na0.5Y0.5)Ti(SiO4)OMon. 2/m : B2/b
9.AG.15ŻabińskiiteCa[Al0.5(Ta,Nb)0.5)](SiO4)OTric. 1
9.AG.20Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.20Cerite-(La)(La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.20Aluminocerite-(Ce)(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.25Trimounsite-(Y)Y2Ti2(SiO4)O5Mon.
9.AG.25Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
9.AG.25Mieite-(Y)Y4Ti(SiO4)2O[F,(OH)]6Orth. mmm (2/m 2/m 2/m) : Cmcm
9.AG.30SitinakiteKNa2Ti4(SiO4)2O5(OH) · 4H2OTet.
9.AG.35KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.
9.AG.40aNatisiteNa2Ti(SiO4)OTet.
9.AG.40bParanatisiteNa2Ti(SiO4)OOrth.
9.AG.45Törnebohmite-(Ce)(Ce,La)2Al(SiO4)2(OH)
9.AG.45Törnebohmite-(La)(La,Ce)2Al(SiO4)2(OH)
9.AG.50Kuliokite-(Y)Y4Al(SiO4)2(OH)2F5
9.AG.55ChantaliteCaAl2(SiO4)(OH)4Tet. 4/m : I41/a
9.AG.60MozartiteCaMn3+(SiO4)(OH)Orth. 2 2 2 : P21 21 21
9.AG.60VuagnatiteCaAl(SiO4)(OH)Orth.
9.AG.65HatruriteCa3(SiO4)OTrig.
9.AG.70JasmunditeCa11(SiO4)4O2STet. 4 2m : I4m2
9.AG.75AfwilliteCa3(HSiO4)2 · 2H2OMon. m : Bb
9.AG.80BultfonteiniteCa2(HSiO4)F · H2OTric.
9.AG.85ZoltaiiteBaV4+2V3+12(SiO4)2O19Trig. 3 : P3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.10.1ZirconZr(SiO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
14.10.2HafnonHfSiO4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
14.10.3ZektzeriteLiNaZrSi6O15Orth.
14.10.4ParakeldyshiteNa2ZrSi2O7Tric.
14.10.5VlasoviteNa2ZrSi4O11Mon. 2/m : B2/b
14.10.6Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
14.10.7GaidonnayiteNa2Zr(Si3O9) · 2H2OOrth. mmm (2/m 2/m 2/m) : Pmna
14.10.8TerskiteNa4ZrSi6O16 · 2H2OOrth.
14.10.9ElpiditeNa2ZrSi6O15 · 3H2OOrth.
14.10.10HilairiteNa2Zr[SiO3]3 · 3H2OTrig.
14.10.11PetarasiteNa5Zr2(Si6O18)(Cl,OH) · 2H2OMon. 2/m : P21/m
14.10.12KhibinskiteK2ZrSi2O7Mon.
14.10.13WadeiteK2Zr(Si3O9)Hex.
14.10.14DalyiteK2ZrSi6O15Tric.
14.10.15KostyleviteK2Zr(Si3O9) · H2OMon.
14.10.16UmbiteK2(Zr,Ti)Si3O9 · H2OOrth.
14.10.17ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth.
14.10.18GeorgechaoiteNaKZr[Si3O9] · 2H2OOrth. mm2
14.10.19GittinsiteCaZrSi2O7Mon.
14.10.20CalciocatapleiiteCaZr(Si3O9) · 2H2O
14.10.21CalciohilairiteCaZr[SiO3]3 · 3H2OTrig.
14.10.22ArmstrongiteCaZr[Si6O15] · 3H2OMon.
14.10.23Lemoynite(Na,K)2CaZr2Si10O26 · 5H2OMon. 2/m : B2/b
14.10.24CatapleiiteNa2Zr(Si3O9) · 2H2OMon.
14.10.25BaghdaditeCa3(Zr,Ti)(Si2O7)O2Mon.
14.10.26LovozeriteNa2Ca(Zr,Ti)(Si6O12)[(OH)4O2] · H2OMon.
14.10.27Låvenite(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2Mon. 2/m : P21/b
14.10.28PenkvilksiteNa4Ti2Si8O22 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
14.10.29DarapiositeK(Na,◻,K)2(Li,Zn,Fe)3(Mn,Zr,Y)2[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
14.10.30BaziriteBaZr(Si3O9)Hex.
14.10.31KomkoviteBaZr[Si3O9] · 3H2OTrig.
14.10.32ZirsinaliteNa6(Ca,Mn2+,Fe2+)Zr(Si6O18)Trig.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for TranquillityiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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
American Mineralogist (1973) 58: 140-141.
Proceedings of the 8th. Lunar Scientific Conference (1977) 2: 1831.
Rasmussen, B. et al (2012) Tranquillityite: the last lunar mineral comes down to Earth. Geology, 40(1), 83-86.

Internet Links for TranquillityiteHide

Localities for TranquillityiteHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Antarctica
 
  • Eastern Antarctica
    • Transantarctic Mts
Semenova, A. S., Nazarov, M. A., & Guseva, E. V. (1992, March). Lunar Meteorite MAC 88105: Petrology of Igneous Rock Clasts. In Lunar and Planetary Science Conference (Vol. 23).
Australia
 
  • Tasmania
    • Kingborough municipality
      • Snug
Melluso, L., Hergt, J. M., & Zanetti, A. (2014). The late crystallization stages of low-Ti, low-Fe tholeiitic magmas: insights from evolved Antarctic and Tasmanian rocks. Lithos, 188, 72-83.
  • Western Australia
    • Ashburton Shire
      • Barradale
Rasmussen et. al, 2011, Tranquillityite: The last lunar mineral comes down to Earth, in Geology, January 2012; v. 40; no. 1; p. 83–86.
    • Derby-West Kimberley Shire
Rasmussen et. al, 2011, Tranquillityite: The last lunar mineral comes down to Earth, in Geology, January 2012; v. 40; no. 1; p. 83–86
    • East Pilbara Shire
Rasmussen et. al, 2011, Tranquillityite: The last lunar mineral comes down to Earth, in Geology, January 2012; v. 40; no. 1; p. 83–86.
Rasmussen et. al, 2011, Tranquillityite: The last lunar mineral comes down to Earth, in Geology, January 2012; v. 40; no. 1; p. 83–86.; Hickman, A.H. (1978) Nullagine, Western Australia: Geological Survey of Australia 1:250,000 Geological Series Explanatory Notes, 22p. Rasmussen, B., and Fletcher, I.R. (2004) Zirconolite, a new U-Pb geochronometer. Geology, 32, 785-788. doi:10.1130/G20658.1. Rasmussen, B. et al (2012) Tranquillityite: the last lunar mineral comes down to Earth. Geology, 40(1) 83-86.
Rasmussen et. al, 2011, Tranquillityite: The last lunar mineral comes down to Earth, in Geology, January 2012; v. 40; no. 1; p. 83–86
      • Yarrie Station
http://geology.gsapubs.org/content/40/1/83.abstract
India
 
  • Bihar
    • Gaya District
U. Bläß, F. Langenhorst (2011): High-pressure phase transformation of SiO2 polymorphs to Seifertite. Joint Meeting of the DGK, DMG and ÖMG, Salzburg, Austria, September 20-24, 2011; Abstracts Volume, p. 46.
Morocco
 
Leroux, H., & Cordier, P. (2006). Magmatic cristobalite and quartz in the NWA 856 Martian meteorite. Meteoritics & Planetary Science, 41(6), 913-923.
Northwest Africa Meteorites
 
Srinivasan, P., Dunlap, D. R., Agee, C. B., Wadhwa, M., Coleff, D., Ziegler, K., ... & McCubbin, F. M. (2018). Silica-rich volcanism in the early solar system dated at 4.565 Ga. Nature communications, 9(1), 3036.
Oman
 
  • Dhofar Governorate (Al Janubiyah Province)
Taylor, L. A., Nazarov, M. A., Demidova, S. I., & Patchen, A. D. (2001). Dhofar 287: A new lunar mare basalt from Oman. Meteoritics and Planetary Science Supplement, 36, 204.
Meteoritical Bulletin No. 86
The Meteoritical Bulletin, No. 88, 2004 JULY, Meteoritics & Planetary Science 39, Axxx–Axxx (2004)
The Moon
 
  • Fra Mauro Highlands
El Goresy, A., Ramdohr, P., & Taylor, L. A. (1971). The geochemistry of the opaque minerals in Apollo 14 crystalline rocks. Earth and Planetary Science Letters, 13(1), 121-129.
  • Mare Tranquillitatis (Sea of Tranquility)
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
  • Oceanus Procellarum (Ocean of Storms)
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
  • Taurus-Littrow Valley
Meyer, H. O. A., & Boctor, N. Z. (1974). Opaque mineralogy-Apollo 17, rock 75035. In Lunar and Planetary Science Conference Proceedings (Vol. 5, pp. 707-716).
Mineral and/or Locality  
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