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Santafeite

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Formula:
(Na,Ca,Sr)
 
12
(Mn
2+
 
,Fe
3+
 
,Al,Mg)
 
8
Mn
4+
8
(VO
 
4
)
 
16
(OH,O)
 
20
· 8H
 
2
O
System:OrthorhombicColour:Black
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 Santafeite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:42.9.7.1

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

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

Type Locality:Unnamed mine, Grants District, McKinley Co., New Mexico, USA
Place of Conservation of Type Material:National Museum of Natural History, Washington, DC, USA
Year of Discovery:1957

Physical Properties of Santafeite

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

Crystallography of Santafeite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:a = 9.25Å, b = 30.00Å, c = 6.33Å
Ratio:a:b:c = 0.308 : 1 : 0.211
Unit Cell Volume:V 1,756.58 ų (Calculated from Unit Cell)
Z:4
X-Ray Powder Diffraction:
d-spacingIntensity
14.88 (100)
7.47 (50)
2.788 (40)
1.667 (40)
3.66 (30)
3.39 (50)
Comments:Grants district, NM

Optical Data of Santafeite

Type:Biaxial
RI values: nα = 2.010
Maximum Birefringence:δ = 2.010

Chart 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 Santafeite

Formula:
(Na,Ca,Sr)
 
12
(Mn
2+
 
,Fe
3+
 
,Al,Mg)
 
8
Mn
4+
8
(VO
 
4
)
 
16
(OH,O)
 
20
· 8H
 
2
O
Simplified for copy/paste:(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20·8H2O
Essential elements:H, Mn, Na, O, V
All elements listed in formula:Al, Ca, Fe, H, Mg, Mn, Na, O, Sr, V

Relationship of Santafeite to other Species

Common Associates:
CarnotiteCalciteCalcite
Related Minerals - Nickel-Strunz Grouping):

- +
8.DM.05Morinite
NaCa
 
2
Al
 
2
(PO
 
4
)
 
2
(OH)F
 
4
· 2H
 
2
O
8.DM.05Esperanzaite
NaCa
 
2
Al
 
2
(AsO
 
4
)
 
2
(OH)F
 
4
· 2H
 
2
O
8.DM.10Clinotyrolite
Ca
 
2
Cu
 
9
(AsO
 
4
,SO
 
4
)
 
4
(OH,O)
 
10
· 10H
 
2
O
8.DM.10Tyrolite
Ca
 
2
Cu
 
9
(AsO
 
4
)
 
4
(CO
 
3
)(OH)
 
8
· 11H
 
2
O
8.DM.15Betpakdalite-CaCa
[Ca
 
2
(H
 
2
O)
 
17
Ca(H
 
2
O)
 
6
][Mo
6+
8
As
5+
2
Fe
3+
3
O
 
36
(OH)]
8.DM.15Melkovite
[Ca
 
2
(H
 
2
O)
 
15
Ca(H
 
2
O)
 
6
][Mo
 
8
P
 
2
Fe
3+
3
O
 
36
(OH)]
8.DM.15Betpakdalite-NaCa
[Na
 
2
(H
 
2
O)
 
17
Ca(H
 
2
O)
 
6
][Mo
6+
8
As
5+
2
Fe
3+
3
O
 
34
(OH)
 
3
]
8.DM.20Phosphovanadylite-Ba
Ba[V
4+
4
P
 
2
O
 
8
(OH)
 
8
]·12H2O
8.DM.20Phosphovanadylite-Ca
Ca[V
4+
4
P
 
2
O
 
12
(OH)
 
4
] · 12H
 
2
O
8.DM.25Yukonite
Ca
 
3
Fe
3+
 
(AsO
 
4
)
 
2
(OH)
 
3
· 5H
 
2
O
8.DM.30Uduminelite
Ca
 
3
Al
 
8
(PO
 
4
)
 
2
O
 
12
· 2H
 
2
O
8.DM.35Delvauxite
CaFe
 
4
(PO
 
4
,SO
 
4
)
 
2
(OH)
 
8
· 4-6H
 
2
O not confirmed ·
Related Minerals - Hey's Index Grouping:

- +
21.4.1Uvanite
U
6+
2
V
5+
6
O
 
21
· 15H
 
2
O (?)
21.4.2Vanuranylite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 4H
 
2
O
21.4.3Strelkinite
Na
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 6H
 
2
O
21.4.4Carnotite
K
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 3H
 
2
O
21.4.5Margaritasite
(Cs,K,H
 
3
O)
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
· H
 
2
O
21.4.6Sengierite
Cu
 
2
(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 6H
 
2
O
21.4.7Metatyuyamunite
Ca(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 3-5H
 
2
O
21.4.8Tyuyamunite
Ca(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 5-8H
 
2
O
21.4.9Rauvite
Ca(UO
 
2
)
 
2
(V
 
10
O
 
28
) · 16H
 
2
O
21.4.10Francevillite
(Ba,Pb)(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 5H
 
2
O
21.4.11Metavanuralite
Al(UO
 
2
)
 
2
(VO
 
4
)
 
2
(OH) · 8H
 
2
O
21.4.12Vanuralite
Al(UO
 
2
)
 
2
(VO
 
4
)
 
2
(OH) · 11H
 
2
O
21.4.13Curienite
Pb(UO
 
2
)
 
2
(VO
 
4
)
 
2
· 5H
 
2
O
21.4.14Fritzscheite
Mn(UO
 
2
)
 
2
(PO
 
4
,VO
 
4
)
 
2
· 10H
 
2
O (?)
21.4.15Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
21.4.17Pyrobelonite
PbMn
2+
 
(VO
 
4
)(OH)
21.4.18Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
21.4.19Čechite
Pb(Fe
2+
 
,Mn
2+
 
)(VO
 
4
)(OH)
21.4.20Heyite
Pb
 
5
Fe
2+
2
(VO
 
4
)
 
2
O
 
4
21.4.21Mounanaite
PbFe
3+
2
(VO
 
4
)
 
2
· 2(OH,F)
21.4.22Schubnelite
Fe
3+
 
VO
 
4
· H
 
2
O
21.4.23Fervanite
Fe
3+
4
V
5+
4
O
 
16
· 5H
 
2
O
21.4.24Kazakhstanite
Fe
3+
5
V
4+
3
V
5+
12
O
 
39
(OH)
 
9
· 9H
 
2
O
21.4.25Bokite
(Al,Fe
3+
 
)
 
1.3
(V
5+
 
,V
4+
 
,Fe
3+
 
)
 
8
O
 
20
· 7.4H
 
2
O
21.4.26Rusakovite
(Fe
3+
 
,Al)
 
5
(VO
 
4
,PO
 
4
)
 
2
(OH)
 
9
· 3H
 
2
O
21.4.27Kolovratite
Ni
 
x
Zn
 
y
(VO
 
4
)
 
0.67(x+y)
· nH
 
2
O

Other Names for Santafeite

Other Languages:
German:Santafeit
Spanish:Santafeita

Other Information

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

References for Santafeite

Reference List:

- +
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]

Best Localities for Santafeite

Best of Species:Santafeite

Internet Links for Santafeite

Search Engines:
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  • External Links:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Santafeite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Santafeite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Italy
     
    • Liguria
      • Genova Province
        • Ne
          • Graveglia Valley
    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.
    USA
     
    • Arizona
      • Navajo Co.
        • Navajo Indian Reservation
          • Monument Valley
            • Mystery Valley
              • Monument No. 1 channel
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 361.
    • New Mexico
      • McKinley Co.
        • Grants District
    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.
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