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Santafeite

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About SantafeiteHide

06508510014947512188549.jpg
Santa Fe locomotive
Formula:
(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2O
Colour:
Black
Lustre:
Adamantine
Specific Gravity:
3.379
Crystal System:
Orthorhombic
Name:
Named by R. S. Sun and R. H. Weber in 1958 after the Atchison, Topeka and Santa Fe Railroad Company for its pioneering exploration and development activities in connection with the uranium deposits of New Mexico.
This page provides mineralogical data about Santafeite.


Classification of SantafeiteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.DM.40

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
M : With large and medium-sized cations, (OH, etc.):RO4 > 2:1
42.9.7.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
9 : (AB)7(XO4)4Zq·xH2O
21.4.16

21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni

Physical Properties of SantafeiteHide

Adamantine
Colour:
Black
Streak:
Brown
Tenacity:
Very brittle
Cleavage:
Very Good
{010} perfect, {110} distinct
Density:
3.379 g/cm3 (Measured)    3.39 g/cm3 (Calculated)

Optical Data of SantafeiteHide

Type:
Biaxial
RI values:
nα = 2.010
Max Birefringence:
δ = 2.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemical Properties of SantafeiteHide

Formula:
(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2O
IMA Formula:
(Ca,Sr,Na)3(Mn2+,Fe3+)2Mn4+2(VO4)4(OH,O)5 · 2H2O

Crystallography of SantafeiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 9.25 Å, b = 30.00 Å, c = 6.33 Å
Ratio:
a:b:c = 0.308 : 1 : 0.211
Unit Cell V:
1,756.58 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
14.88 Å(100)
7.47 Å(50)
2.788 Å(40)
1.667 Å(40)
3.66 Å(30)
3.39 Å(50)
Comments:
Grants district, NM

Type Occurrence of SantafeiteHide

Place of Conservation of Type Material:
National Museum of Natural History, Washington, DC, USA

Other Language Names for SantafeiteHide

German:Santafeit
Spanish:Santafeita

Common AssociatesHide

CalciteCaCO3
CalciteCaCO3
CarnotiteK2(UO2)2(VO4)2 · 3H2O

Related Minerals - Nickel-Strunz GroupingHide

8.DM.Betpakdalite-CaMg[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)] Mon. 2/m : B2/m
8.DM.Betpakdalite-FeFe[Fe3+2 (H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3 O37]Mon. 2/m : B2/m
8.DM.05MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m
8.DM.05EsperanzaiteNaCa2Al2(AsO4)2(OH)F4 · 2H2OMon.
8.DM.10TyroliteCa2Cu9(AsO4)4(CO3)(OH)8 · 11H2OMon. 2/m
8.DM.15Betpakdalite-CaCa[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]Mon. 2/m : B2/m
8.DM.15Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]Mon. 2/m : B2/m
8.DM.15Betpakdalite-NaCa[Na2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O34(OH)3]Mon. 2/m : B2/m
8.DM.20Phosphovanadylite-BaBa[V4+4P2O8(OH)8]·12H2OIso.
8.DM.20Phosphovanadylite-CaCa[V4+4P2O12(OH)4] · 12H2O Iso. 4 3m : I4 3m
8.DM.25YukoniteCa3Fe3+(AsO4)2(OH)3 · 5H2OOrth. mm2
8.DM.30UdumineliteCa3Al8(PO4)2O12 · 2H2O
8.DM.35DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmedAmor.

Related Minerals - Dana Grouping (8th Ed.)Hide

42.9.7.1OgdensburgiteCa2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmmm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.4.1UvaniteU6+2V5+6O21 · 15H2O (?)Orth.
21.4.2Vanuranylite(H3O)2(UO2)2(VO4)2 · 4H2O
21.4.3StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
21.4.4CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
21.4.5Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
21.4.6SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
21.4.7MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
21.4.8TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna
21.4.9RauviteCa(UO2)2(V10O28) · 16H2O
21.4.10FrancevilliteBa(UO2)2(VO4)2 · 5H2OOrth.
21.4.11MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
21.4.12VanuraliteAl(UO2)2(V2O8)(OH) · 11H2OMon.
21.4.13CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
21.4.14FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
21.4.15Palenzonaite(NaCa2)Mn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
21.4.17PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.4.18BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
21.4.19ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
21.4.20HeyitePb5Fe2+2(VO4)2O4Mon.
21.4.21MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
21.4.22SchubneliteFe3+VO4 · H2OTric.
21.4.23FervaniteFe3+4V5+4O16 · 5H2OMon.
21.4.24KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMon.
21.4.25Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2OMon.
21.4.26Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
21.4.27KolovratiteNixZny(VO4)0.67(x+y) · nH2O

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 SantafeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sun, M. S. and R.H. Weber (1958): Santafeite, a new hydrated vanadate from New Mexico. American Mineralogist 43, 677-687.
Dunn, P.J. and D.R. Peacor (1986): Santafeite, a re-examination and new empirical formula. Mineralogical Magazine 50, 299-300. [abstract: American Mineralogist (1987): 72: 1028]

Internet Links for SantafeiteHide

Localities for SantafeiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Italy
 
  • Liguria
    • Genoa
      • Ne
Balestra, C., Bracco, R., Armellino, G., Leporatti, C., Callegari, A.M., Boiocchi, M., Costa, E., Ciriotti, M.E. (2012): Aggiornamenti di mineralogia sistematica ligure. Nuove specie della Val Graveglia. Micro 2/2012, 56-65.
Mexico
 
  • San Luis Potosí
    • Rioverde Municipality
Planer-Friedrich, B. (2000). Hydrogeological and hydrochemical investigations in the Rio Verde Basin, Mexico. Freiberg Online Geoscience, 3, 1-145.
USA
 
  • Arizona
    • Navajo Co.
      • Mineral Mining District
        • Mystery Valley
          • Monument No. 1 channel (Channel No. 36)
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 361.
  • New Mexico
    • McKinley Co.
Minerals of New Mexico 3rd ed.; Sun, M-S. and R.H.Weber: "Santafeite, a new hydrated vanadate from New Mexico", American Mineralogist (1958): 43: 677-687.
  • Utah
    • San Juan Co.
      • La Sal Mts
        • La Sal Mining District (Paradox Valley Mining District)
          • La Sal
Collected by and EDS analyzed by Joy Desor.
 
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