Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Betpakdalite-NaCa

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Magallanes district, Estación Cerro Negro, Cerro Palestina, Antofagasta Province, Antofagasta Region, Chile
© L Kruszewski 2006




Formula:
(Na
 
2
,Ca)Fe
 
2
(As
 
2
Mo
 
6
O
 
28
) · 15H
 
2
O
Natrobetpakdalite
Colour:Lemon-yellow
Member of:Betpakdalite Group
Name:The name reflects its sodium content and similarity to betpakdalite.


Betpakdalite Group.

Formerly called natrobetpakdalite; in 2010 (IMA 10-E).

Classification of Betpakdalite-NaCa

IMA status:Redefined Approved 2010
Nickel-Strunz 10th (pending) edition ID:8.DM.15

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:49.4.4.1

49 : HYDRATED MOLYBDATES AND TUNGSTATES
4 : Compound Molybdates and Tungstates
Hey's CIM Ref.:22.5.9

22 : Phosphates, Arsenates or Vanadates with other Anions
5 : Phosphates, arsenates or vanadates with chromate, molybdate, niobate or tantalate
mindat.org URL:http://www.mindat.org/min-3706.html
Please feel free to link to this page.

Type Occurrence of Betpakdalite-NaCa

Type Locality:Kyzylsai Mo-U deposit, Chu-Ili Mts, Almaty Province (Almaty Oblysy; Almati Oblast'), Kazakhstan

Physical Properties of Betpakdalite-NaCa

Lustre:Dull
Colour:Lemon-yellow

Optical Data of Betpakdalite-NaCa

Type:Biaxial
RI values: nα = 1.792 nγ = 1.810
Maximum Birefringence:δ = 0.018

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v perceptible

Chemical Properties of Betpakdalite-NaCa

Formula:
(Na
 
2
,Ca)Fe
 
2
(As
 
2
Mo
 
6
O
 
28
) · 15H
 
2
O


Natrobetpakdalite
Essential elements:As, Fe, H, Mo, Na, O
All elements listed in formula:As, Ca, Fe, H, Mo, Na, O

Relationship of Betpakdalite-NaCa to other Species

Member of:Betpakdalite Group
Other Members of Group:

- +
Betpakdalite-CaCa
{Mg(H
 
2
O)
 
6
}Ca
 
2
(H
 
2
O)
 
13
[Mo
6+
8
As
5+
2
Fe
3+
3
O
 
36
(OH)](H
 
2
O)
 
4
Melkovite
CaFe
3+
2
Mo
 
5
(PO
 
4
)
 
2
O
 
10
(OH)
 
12
 · 8H
 
2
O
Mendozavilite-NaFe
Na(Ca,Mg)
 
2
Fe
3+
6
(PMo
 
11
O
 
39
)(PO
 
4
)
 
2
(OH,Cl)
 
10
 · 33H
 
2
O
Obradovicite-KCu
H
 
4
(K,Na)CuFe
 
2
(MoO
 
4
)
 
5
(AsO
 
4
) · 12H
 
2
O
Paramendozavilite
NaAl
 
4
Fe
3+
7
(PMo
 
12
O
 
40
)(PO
 
4
)
 
5
(OH)
 
16
 · 56H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
8.DM.05Morinite
Na
 
2
Ca
 
4
Al
 
4
(PO
 
4
)
 
4
(F,OH)
 
10
 · 3H
 
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)
 
4
 · 11-12H
 
2
O
8.DM.15Betpakdalite-CaCa
{Mg(H
 
2
O)
 
6
}Ca
 
2
(H
 
2
O)
 
13
[Mo
6+
8
As
5+
2
Fe
3+
3
O
 
36
(OH)](H
 
2
O)
 
4
8.DM.15Melkovite
CaFe
3+
2
Mo
 
5
(PO
 
4
)
 
2
O
 
10
(OH)
 
12
 · 8H
 
2
O
8.DM.20Phosphovanadylite
(Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12(H2O) x~0.66
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 ·
8.DM.40Santafeite
(Na,Ca,Sr)
 
12
(Mn
2+
 
,Fe
3+
 
,Al,Mg)
 
8
Mn
4+
8
(VO
 
4
)
 
16
(OH,O)
 
20
 · 8H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
22.5.1Vauquelinite
Pb
 
2
Cu(CrO
 
4
)(PO
 
4
)(OH)
22.5.2Embreyite
Pb
 
5
(CrO
 
4
)
 
2
(PO
 
4
)
 
2
 · H
 
2
O
22.5.3Cassedanneite
Pb
 
5
(CrO
 
4
)
 
2
(VO
 
4
)
 
2
 · H
 
2
O
22.5.4Fornacite
Pb
 
2
Cu(CrO
 
4
)(AsO
 
4
)(OH)
22.5.5Molybdofornacite
Pb
 
2
Cu(MoO
 
4
,CrO
 
4
)(AsO
 
4
,PO
 
4
)(OH)
22.5.6Mendozavilite-NaFe
Na(Ca,Mg)
 
2
Fe
3+
6
(PMo
 
11
O
 
39
)(PO
 
4
)
 
2
(OH,Cl)
 
10
 · 33H
 
2
O
22.5.7Paramendozavilite
NaAl
 
4
Fe
3+
7
(PMo
 
12
O
 
40
)(PO
 
4
)
 
5
(OH)
 
16
 · 56H
 
2
O
22.5.8Betpakdalite-CaCa
{Mg(H
 
2
O)
 
6
}Ca
 
2
(H
 
2
O)
 
13
[Mo
6+
8
As
5+
2
Fe
3+
3
O
 
36
(OH)](H
 
2
O)
 
4
22.5.10Obradovicite-KCu
H
 
4
(K,Na)CuFe
 
2
(MoO
 
4
)
 
5
(AsO
 
4
) · 12H
 
2
O
22.5.11Melkovite
CaFe
3+
2
Mo
 
5
(PO
 
4
)
 
2
O
 
10
(OH)
 
12
 · 8H
 
2
O
22.5.12Rankachite
Ca
 
0.5
(V
4+
 
,V
5+
 
)(W
6+
 
,Fe
3+
 
)
 
2
O
 
8
(OH) · 2H
 
2
O
22.5.13Olmsteadite
KFe
2+
2
(Nb
5+
 
,Ta
5+
 
)(PO
 
4
)
 
2
O
 
2
 · 2H
 
2
O
22.5.14Johnwalkite
K(Mn
2+
 
,Fe
2+
 
,Fe
3+
 
)
 
2
(Nb
5+
 
,Ta
5+
 
)(PO
 
4
)
 
2
O
 
2
 · 2(H
 
2
O,OH)

Other Names for Betpakdalite-NaCa

Synonyms:
IMA1971-057Na BetpakdaliteSodium Betpakdalite
Other Languages:
German:Na Betpakdalit
Natriumbetpakdalit

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 Betpakdalite-NaCa

Reference List:

- +
American Mineralogist (1972): 57: 1312.

Canadian Mineralogist (1999): 37: 61-66.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 100(5): 603-611.

Internet Links for Betpakdalite-NaCa

Search Engines:
  • Look for Betpakdalite-NaCa on Google
  • Look for Betpakdalite-NaCa images on Google
    • External Links:
  • Sodium Betpakdalite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • SpiriferMinerals.com - high quality low prices
  • Search for - Betpakdalite-NaCa - on e-Rocks Mineral Sales & Auctions
  • Rare and Unusual minerals at Mineralogical Research Company
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • By minerals from YourMineralCollection
  • Find Betpakdalite-NaCa on www.crystalclassics.co.uk
  • Search for minerals at Heliodor
  • The Arkenstone - Fine Minerals
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Wilensky Fine Minerals
  • Buy RARE Minerals from Rocks of Africa
  • Top quality minerals from Kristalle of California
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Betpakdalite-NaCa

    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.
    Hide Locality List
    (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.
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Cerro Palestina
          • Estación Cerro Negro
    		Lukasz Kruszewski
    Kazakhstan
     
    • Almaty Province (Almaty Oblysy; Almati Oblast')
      • Chu-Ili Mts
    		Pekov (1998); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 28th Aug 2011 17:42:30
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds