Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Pahasapaite

Big Photo

Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
© Thomas Witzke

Show Pahasapaite Photos (3)
Formula:
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
·38H
 
2
O
System:IsometricColour:Colourless, light pink, ...
Lustre:VitreousHardness:4½
Name:Named from the Dakota Sioux Indian word 'Pahasapa' for the Black Hills.


Zeolitic structure.

Classification of Pahasapaite

IMA status:Approved
Strunz 8th edition ID:7/C.01-10
Nickel-Strunz 10th (pending) edition ID:8.CA.25

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
A : With small and large/medium cations
Dana 7th edition ID:40.5.7.1
Dana 8th edition ID:40.5.7.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
5 : AXO4·xH2O
Hey's CIM Ref.:19.3.9

19 : Phosphates
3 : Phosphates of Be and Mg
mindat.org URL:http://www.mindat.org/min-3062.html
Please feel free to link to this page.

Type Occurrence of Pahasapaite

Type Locality:Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Year of Discovery:1987

Physical Properties of Pahasapaite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless, light pink, Yellow
Streak:White
Hardness (Mohs):4½
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (measured):2.28 g/cm3
Density (calculated):2.24 g/cm3

Crystallography of Pahasapaite

Crystal System:Isometric
Class (H-M):2 3 - Tetartoidal
Space Group:I2 3
Cell Parameters:a = 13.781Å
Unit Cell Volume:V 2 ų
Z:1

Optical Data of Pahasapaite

Type:Isotropic

Chemical Properties of Pahasapaite

Formula:
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
·38H
 
2
O
Essential elements:Be, Ca, H, Li, O, P
All elements listed in formula:Be, Ca, H, K, Li, O, P

Relationship of Pahasapaite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.CA.05Fransoletite
Ca
 
3
Be
 
2
[HPO
 
4
|PO
 
4
]
 
2
 · 4H
 
2
O
8.CA.05Parafransoletite
Ca
 
3
Be
 
2
[HPO
 
4
|PO
 
4
]
 
2
 · 4H
 
2
O
8.CA.10Ehrleite
Ca
 
4
Be
 
3
Zn
 
2
[PO
 
4
]
 
6
 · 9H
 
2
O
8.CA.15Faheyite
(Mn,Mg,Na)Be
 
2
Fe
 
2
(PO
 
4
)
 
4
·6H
 
2
O
8.CA.20Gainesite
Na(Na,K)(Be,Li)Zr
 
2
[PO
 
4
]
 
4
 · 1.5-2H
 
2
O
8.CA.20Mccrillisite
NaCs(Be,Li)Zr
 
2
(PO
 
4
)
 
4
·1-2H
 
2
O
8.CA.20Selwynite
NaK(Be,Al)Zr
 
2
(PO
 
4
)
 
4
·2H
 
2
O
8.CA.30Hopeite
Zn
 
3
(PO
 
4
)
 
2
·4H
 
2
O
8.CA.30Parahopeite
Zn
 
3
(PO
 
4
)
 
2
·4H
 
2
O
8.CA.35Warikahnite
Zn
 
3
(AsO
 
4
)
 
2
·2H
 
2
O
8.CA.40Phosphophyllite
Zn
 
2
Fe(PO
 
4
)
 
2
·4H
 
2
O
8.CA.45Parascholzite
CaZn
 
2
(PO
 
4
)
 
2
·2H
 
2
O
8.CA.45Scholzite
CaZn
 
2
(PO
 
4
)
 
2
·2H
 
2
O
8.CA.50Keyite
(Cu,Zn,Cd)
 
3
(AsO
 
4
)
 
2
8.CA.55Pushcharovskite
CuAsO
 
3
OH·H
 
2
O
8.CA.60Prosperite
CaZn
 
2
[OH|HAsO
 
4
|AsO
 
4
]
8.CA.65Gengenbachite
KFe
3+
3
[H
 
2
PO
 
4
|(HPO
 
4
)
 
2
]
 
2
 · 6H
 
2
O
Related Minerals - Hey's Index Grouping:
19.3.1Moraesite
Be
 
2
[OH|PO
 
4
] · 4H
 
2
O
19.3.2Beryllonite
NaBe[PO
 
4
]
19.3.3Hurlbutite
CaBe
 
2
[PO
 
4
]
 
2
19.3.4Hydroxylherderite
CaBe[(OH,F)|PO
 
4
]
19.3.5Glucine
CaBe
 
4
[(OH)
 
2
|PO
 
4
]
 
2
 · 0.5H
 
2
O
19.3.6Fransoletite
Ca
 
3
Be
 
2
[HPO
 
4
|PO
 
4
]
 
2
 · 4H
 
2
O
19.3.7Uralolite
Ca
 
2
Be
 
4
[OH|PO
 
4
]
 
3
 · 5H
 
2
O
19.3.10Tiptopite
K
 
2
(Na,Ca)
 
2
Li
 
3
Be
 
6
[OH|(PO
 
4
)
 
3
]
 
2
 · H
 
2
O
19.3.11Gainesite
Na(Na,K)(Be,Li)Zr
 
2
[PO
 
4
]
 
4
 · 1.5-2H
 
2
O
19.3.12Roscherite
Ca(Mn
2+
 
,Fe
2+
 
)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
19.3.13Faheyite
(Mn,Mg,Na)Be
 
2
Fe
 
2
(PO
 
4
)
 
4
·6H
 
2
O
19.3.14Farringtonite
Mg
 
3
[PO
 
4
]
 
2
19.3.15Holtedahlite
Mg
 
2
[OH|PO
 
4
]
19.3.16Althausite
Mg
 
2
[(OH,F)|PO
 
4
]
19.3.17Newberyite
MgHPO
 
4
·3H
 
2
O
19.3.18Phosphorrösslerite
MgHPO
 
4
·7H
 
2
O
19.3.19Bobierrite
Mg
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.20Barićite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.21Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
[PO
 
4
]
 
2
19.3.22Dittmarite
NH
 
4
MgPO
 
4
·H
 
2
O
19.3.23Struvite
NH
 
4
MgPO
 
4
·6H
 
2
O
19.3.24Hannayite
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
·8H
 
2
O

Other Names for Pahasapaite

Synonyms:
Pahasapite
German names:
PahasapaitPahasapit
Russian names:
Пахасапаит
Spanish names:
PahasapaitaPahasapita

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 Pahasapaite

Reference List:Neues Jahrbuch für Mineralogie, Monatshefte (1987): 10: 433-440.

Rouse R.C., Peacor D.R., Merlino S.(1989): Crystal structure of pahasapaite, a beryllophosphate mineral with a distorted zeolite rho framework. American Mineralogist: 74: 1195-1202.

Internet Links for Pahasapaite

Search Engines:
  • Look for Pahasapaite on Google
  • Look for Pahasapaite images on Google
    • External Links:
  • Look for Pahasapaite on Webmineral
  • Look for Pahasapaite on Athena Mineralogy
  • Look for Pahasapaite on Wikipedia
  • Look for Pahasapaite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Pahasapaite in the Natural History Museum (London) online catalogue
  • Pahasapaite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Buy from David K Joyce minerals
  • Lapis Mineral Magazin
  • e-Rocks - Mineral Auctions and Sales
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Fabre Minerals - search for Pahasapaite specimens
  • Buy Minerals and Crystals from Crystalarium.com
  • Wilensky Fine Minerals
  • Search for Pahasapaite at Thames Valley Minerals
  • Fine Minerals from Dan Weinrich Minerals
  • Wendel Minerals - Auktion & Shop
  • Buy Fine Minerals from mineralsweb.com
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Pahasapaite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    USA
     
    • South Dakota
      • Custer Co.
        • Custer District
          • Fourmile
    		No reference listed
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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. If you would like to add information to improve the quality of our database, then click here to register.