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Whitlockite

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Formula:
Ca
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
System:TrigonalColour:Colourless, grey-white, ...
Hardness:5
Member of:Whitlockite Group
Name:Named after Herbert Percy Whitlock (1868-1948), Curator of Minerals, American Museum of Natural History, New York (USA).


Whitlockite Group.
Structurally related to Wopmayite.

All non-terrestrial whitlockites are actually Merrillite (Dowty, 1977).

Visit gemdat.org for gemological information about Whitlockite. Currently in public beta-test.

Classification of Whitlockite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/A.05-50
Nickel-Strunz 10th (pending) edition ID:8.AC.45

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations
Dana 8th edition ID:38.3.4.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
Hey's CIM Ref.:19.4.8

19 : Phosphates
4 : Phosphates of Ca
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Type Occurrence of Whitlockite

Type Locality:Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Place of Conservation of Type Material:Harvard University 95030
Year of Discovery:1940
Geological Setting of type material:Pegmatite
Associated Minerals at type locality:
XanthoxeniteTriphyliteSideriteQuartzLudlamite
FairfielditeApatite

Occurrences of Whitlockite

Geological Setting:Pegmatites; phosphate-rock deposits.

Physical Properties of Whitlockite

Lustre:Vitreous, Resinous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colourless, grey-white, light pink, light yellow; colourless in transmitted light.
Hardness (Mohs):5
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):3.12 g/cm3
Density (calculated):3.102 g/cm3

Crystallography of Whitlockite

Crystal System:Trigonal
Class (H-M):3m - Ditrigonal Pyramidal
Space Group:R3c
Cell Parameters:a = 10.33Å, c = 37.103(5) Å
Ratio:a:c = 1 : 3.592
Unit Cell Volume:V 3,428.79 ų (Calculated from Unit Cell)
Z:3
Morphology:Crystals exhibit rhombohedral development; rarely tabular {0001}. Coarse-granular to earthy. Cave pearls.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Whitlockite

Type:Uniaxial (-)
RI values: nω = 1.629 nε = 1.626
Maximum Birefringence:δ = 0.003

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

Chemical Properties of Whitlockite

Formula:
Ca
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
Simplified for copy/paste:Ca9Mg(PO4)6(HPO4)
Essential elements:Ca, H, Mg, O, P
All elements listed in formula:Ca, H, Mg, O, P

Relationship of Whitlockite to other Species

Member of:Whitlockite Group
Other Members of Group:

- +
Bobdownsite
Ca
 
9
Mg(PO
 
4
)
 
6
(PO
 
3
F)
Ferromerrillite
Ca
 
9
NaFe
2+
 
(PO
 
4
)
 
7
Merrillite
Ca
 
9
NaMg(PO
 
4
)
 
7
Strontiowhitlockite
Sr
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
Related Minerals - Nickel-Strunz Grouping):

- +
8.AC.05Howardevansite
NaCuFe
 
2
(VO
 
4
)
 
3
8.AC.10Alluaudite
(Na,Ca)Mn
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
,Mg)
 
2
(PO
 
4
)
 
3
8.AC.10Arseniopleite
NaCaMn
2+
 
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.10Caryinite
(Na,Pb)(Ca,Na)(Ca,Mn
2+
 
)(Mn
2+
 
,Mg,Fe
3+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.10Ferroalluaudite
(Na,Ca)Fe
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)
 
3
8.AC.10Hagendorfite
NaCaMn
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
8.AC.10Maghagendorfite
(□,Na,)(Na,Ca,Fe
2+
 
)Mn(Mg,Fe
2+
 
,Fe
3+
 
)
 
3
(PO
 
4
)
 
3
8.AC.10Nickenichite
Na
 
0.8
Ca
 
0.4
Cu
 
0.4
(Mg,Fe)
 
3
(AsO
 
4
)
 
3
8.AC.10Varulite
NaCaMn
2+
 
Mn
2+
2
(PO
 
4
)
 
3
8.AC.10Ferrohagendorfite
NaCaFe
2+
 
Fe
2+
2
(PO
 
4
)
 
3
8.AC.10Bradaczekite
NaCu
 
4
(AsO
 
4
)
 
3
8.AC.10Yazganite
NaFe
3+
2
(Mg,Mn
2+
 
)(AsO
 
4
)
 
3
· H
 
2
O
8.AC.10Groatite
NaCaMn
 
2
(PO
 
4
)(HPO
 
4
)
 
2
8.AC.15Bobfergusonite
Na
 
2
Mn
 
5
FeAl(PO
 
4
)
 
6
8.AC.15Ferrowyllieite
(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Qingheiite
NaMn
3+
 
Mg(Al,Fe
3+
 
)(PO
 
4
)
 
3
8.AC.15Rosemaryite
(Na,Ca,Mn)(Mn,Fe
2+
 
)(Fe
3+
 
,Mg)Al(PO
 
4
)
 
3
8.AC.15Wyllieite
(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO
 
4
)
 
3
8.AC.15Ferrorosemaryite
◻NaFe
2+
 
Fe
3+
 
Al(PO
 
4
)
 
3
8.AC.15Qingheiite-(Fe2+)
Na
 
2
Fe
2+
 
MgAl(PO
 
4
)
 
3
8.AC.18Manitobaite
Na
 
16
Mn
2+
 
 
25
Al
 
8
(PO
 
4
)
 
30
8.AC.20Marićite
NaFe
2+
 
(PO
 
4
)
8.AC.25Berzeliite
NaCa
 
2
(Mg,Mn
2+
 
)
 
2
(AsO
 
4
)
 
3
8.AC.25Manganberzeliite
(Ca,Na)
 
3
(Mn
2+
 
,Mg)
 
2
(AsO
 
4
)
 
3
8.AC.25Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
(VO
 
4
)
 
3
8.AC.25Schäferite
Ca
 
2
NaMg
 
2
(VO
 
4
)
 
3
8.AC.30Brianite
Na
 
2
CaMg(PO
 
4
)
 
2
8.AC.35Vitusite-(Ce)
Na
 
3
(Ce,La,Nd)(PO
 
4
)
 
2
8.AC.40Olgite
(Sr,Ba)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
8.AC.40Bario-olgite
(Ba,Sr)(Na,Sr,REE)
 
2
Na(PO
 
4
)
 
2
·
8.AC.45Strontiowhitlockite
Sr
 
9
Mg(PO
 
4
)
 
6
(HPO
 
4
)
8.AC.45Merrillite
Ca
 
9
NaMg(PO
 
4
)
 
7
8.AC.45Tuite
Ca
 
3
(PO
 
4
)
 
2
8.AC.45Ferromerrillite
Ca
 
9
NaFe
2+
 
(PO
 
4
)
 
7
8.AC.45Bobdownsite
Ca
 
9
Mg(PO
 
4
)
 
6
(PO
 
3
F)
8.AC.50Chladniite
{Ca}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Johnsomervilleite
Na
 
10
Ca
 
6
Mg
 
18
Fe
 
25
(PO
 
4
)
 
36
8.AC.50Galileiite
{Fe
2+
 
}{Na
 
8
}{Fe
2+
4
Na
 
4
}{Fe
2+
43
}(PO
 
4
)
 
36
8.AC.50Stornesite-(Y)
{(Y, Ca)}{Na
 
6
 
2
}{(Ca,Na)
 
8
}{(Mg,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
8.AC.50Xenophyllite
Na
 
4
Fe
2+
7
(PO
 
4
)
 
6
8.AC.55Harrisonite
Ca(Fe
2+
 
,Mg)
 
6
(PO
 
4
)
 
2
(SiO
 
4
)
 
2
8.AC.60Kosnarite
KZr
 
2
(PO
 
4
)
 
3
8.AC.65Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)
 
2
8.AC.70Stanfieldite
Ca
 
7
Ca
 
2
Mg
 
9
(PO
 
4
)
 
12
8.AC.75Ronneburgite
K
 
2
MnV
 
4
O
 
12
8.AC.80Tillmannsite
(Ag
 
3
Hg)(VO
 
4
,AsO
 
4
)
8.AC.85Filatovite
K(Al,Zn)
 
2
(As,Si)
 
2
O
 
8
Related Minerals - Hey's Index Grouping:

- +
19.4.1Monetite
Ca(HPO
 
4
)
19.4.2Hydroxylapatite
Ca
 
5
(PO
 
4
)
 
3
(OH)
19.4.3Brushite
Ca(HPO
 
4
) · 2H
 
2
O
19.4.4Isoclasite
Ca
 
2
(PO
 
4
)(OH) · 2H
 
2
O
19.4.5Buchwaldite
NaCa(PO
 
4
)
19.4.6Canaphite
Na
 
2
Ca(P
 
2
O
 
7
) · 4H
 
2
O
19.4.7Mundrabillaite
(NH
 
4
)
 
2
Ca(HPO
 
4
)
 
2
· H
 
2
O
19.4.9Brianite
Na
 
2
CaMg(PO
 
4
)
 
2
19.4.10Petersite-(Y)
(Y,Ce,Nd)Cu
 
6
(PO
 
4
)
 
3
(OH)
 
6
· 3H
 
2
O

Other Names for Whitlockite

Synonyms:
Pyrophosphorite
Other Languages:
German:Whitlockit
Russian:Витлокит
Spanish:Whitlockita
Varieties:
Martinite (of Kloos)Zeugite

Other Information

Electrical:Piezoelectric, pyroelectric
Other Information:Readily soluble in dilute acids.
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 Whitlockite

Reference List:

- +
Julien (1865) American Journal of Science: 40: 371 (as Zeugite).

Shepard (1878) American Journal of Science: 15: 49 (as Pyrophosphorite).

American Mineralogical Society, Program and Abstracts (1940): 7.

Frondel, C. (1941) American Mineralogist: 26: 145.

Frondel, C. (1943) American Mineralogist: 28: 227.

Bannister (1947) Mineralogical Magazine: 28: 29.

Frondel, C. (1949) American Mineralogist: 34: 692.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 684-686.

Calvo, C. & R. Gopal (1975):"The crystal structure of whitlockite from the Palermo Quarry": American Mineralogist: 60: 120-133.

Dowty, E.: (1977): "Phosphate in Angra dos Reis: structure and composition of the Ca3(PO4)2 minerals": Earth and Planetary Science Letters: 36: 347-351.

John M. Hughes, Bradley L. Jolliff, and John Rakovan (2008) The crystal chemistry of whitlockite and merrillite and the dehydrogenation of whitlockite to merrillite. American Mineralogist, 93, 1300–1305.

Adcock, C. T., Hausrath, E. M., Forster, P. M., Tschauner, O., Sefein, K. J. (2014): Synthesis and characterization of the Mars-relevant phosphate minerals Fe- and Mg- whitlockite and merrillite and a possible mechanism that maintains charge balance during whitlockite to merrillite transformation. American Mineralogist 99, 1221-1232.

Internet Links for Whitlockite

Search Engines:
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  • Look for Whitlockite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Whitlockite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Whitlockite

    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.
    Algeria
     
    • Oran Province
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 686.; F. A. Bannister and Miss Hilda Bennett (1947) Whitlockite from Sebdou, Oran, Algeria. Mineralogical Magazine 28:29-30
    Argentina
     
    • Buenos Aires
    http://www.hou.usra.edu/meetings/lpsc2014/pdf/1818.pdf
    • Chaco
      • Doce de Octubre Department
        • Gran Chaco
    Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    Australia
     
    • South Australia
      • Flinders Ranges
        • South Flinders Ranges
          • Wilmington
    American Mineralogist (2000): 85: 1324.; Mineral. Mag. 63, 735-741
      • Olary Province
        • Weekeroo Station
    Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    • Western Australia
      • Dundas Shire
        • Cocklebiddy Roadhouse
    Caves: processes, development, and management By David S. Gillieson
        • Madura Roadhouse
    Mineralogical Magazine (1977): 41: 33-35.
    Austria
     
    • Carinthia
      • Millstatt lake ridge
        • Spittal
          • Millstatt lake
    Walter, F. (1998): Exkursion E4 am 27.9.1998 - MinPet 98 (Pörtschach am Wörthersee/Kärnten) - Die Pegmatite des Millstätter See-Rückens. Mitt. Österr. Mineral. Ges. 143, 437-450. [http://www.uibk.ac.at/mineralogie/oemg/bd_143/143minpet98_437-450.pdf]
          • Wolfsberg
    Pichler (2009)
    Bahamas
     
    • San Salvador District
      • San Salvador Island
    Carb.&Evap. v.16 no.1 (2001)
    Brazil
     
    • Minas Gerais
      • Martinho Campos
        • Ibitira
    Heim, N. A., Wadhwa, M. & Davis, A. M. (March 1999) Rare Earth Element Abundances in Vapor Deposited Minerals in Ibitira Vesicles: Lunar and Planetary Science Conference XXX: abstract no. 1908. (March 1999)
    • Rio de Janeiro
      • Angra dos Reis
        • Ilha Grande
    Prinz, M., Keil, K., Hlava, P. F., Berkely, J. L., Gomes, C. B. & Curvello, W. S. (1977) Studies of Brazilian meteorites. III - Origin and history of the Angra DOS Reis achondrite: Earth and Planetary Science Letters 35 (2): 317-330. (June 1977) ; Dowty, E. (1977) Phosphate in Angra Dos Reis - Structure and composition of the Ca3(PO4)2 minerals. Earth and Planetary Science Letters 35 (2): 347-351. (June 1977)
    British West Indies
     
    • Anguilla
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 686.
    Canada
     
    • Manitoba
      • Lac-du-Bonnet area
        • Bernic Lake
    Min. Rec.: 32: 416.
    • Newfoundland and Labrador
      • Labrador
        • Seal Lake alkaline complex (Letitia Lake)
    GSC locality database; GSC database locality No. 4100
    • Yukon Territory
      • Dawson Mining District
    Horvath, L. (2003). Whitlockit vom Big Fish River, Yukon, Kanada. Lapis 28 (9), 39-40 + 58.
    [MinRec 23:Yukon 34]
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Taltal
    Kimura, M., Ikeda, Y., Ebihara, M., & Prinz, M. (1991). New enclaves in the Vaca Muerta mesosiderite: Petrogenesis and comparison with HED meteorites. Antarctic Meteorite Research, 4, 263.
    China
     
    • Anhui Province
      • Bozhou Prefecture
        • Qiaocheng District
          • Xiaoyanzhuang
    Kuiren Wang and Junxin Wang (1987): Acta Mineralogica Sinica 7(3), 238-244
    • Jilin Province (Manchuria; Dongbei Region)
      • Jilin Prefecture
        • Chuanying District
    Wankang Huang, Yingwen Xie, and Jingming Pan (1978): Geochimica 7(1), 25-34
    • Shaanxi Province
      • Hanzhong Prefecture
        • Ningqiang Co.
    Wang, Y. & Hsu, W. (2009). Petrology and Mineralogy of the Ningqiang carbonaceous chondrite. Meteoritics & Planetary Science Vol. 44, #5, 763-780. (May 2009).
    • Xinjiang Autonomous Region
      • Changji Autonomous Prefecture (Sanji Autonomous Prefecture)
        • Fukang Co.
    Connolly, Jr., H.C., Zipfel, J., Grossman, J.N., Folco, L., Smith, C., Jones, R.H., Righter, K., Zolensky, M., Russell, S.S., Benedix, G.K., Yamaguchi, A., and Cohen, B.A. (2006): Meteoritics & Planetary Science 41(9), 1383–1418
    Cuba
     
    • Santiago de Cuba Province
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Curaçao
     
    • Curaçao
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 686.
    Germany
     
    • Hesse
      • Wetzlar
        • Waldgirmes
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    • North Rhine-Westphalia
      • Aachen
        • Stolberg
    Blaß, G. & Graf, H. W. (1995): Neufunde von Schlackenhalden in der nördlichen Eifel (II). Mineralien-Welt, 6 (3), 28-31.
    • Saxony-Anhalt
      • Magdeburg
        • Salzwedel
          • Hohenlangenbeck
    Matthes, J. (1995): The Salzwedel meteorite. Petrology and shock metamorphism. Chemie der Erde 55, 257-261.
    • Schleswig-Holstein
      • Bredstedt
        • Joldelund
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    • Thuringia
      • Gera
        • Ronneburg U deposit
    T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    India
     
    • Bihar
      • Gaya District
    Lundberg, L. L., Crozaz, G., McKay, G., & Zinner, E. (1988). Rare earth element carriers in the Shergotty meteorite and implications for its chronology. Geochimica et Cosmochimica Acta, 52(8), 2147-2163.
    Israel
     
    • Negev
    Vapnik, Y., Sokol, E., Murashko M., Sharygin V. (2006): The enigma of Hatrurim. Mineralogical Almanac, 10, 69-77.
    Kenya
     
    • Rift Valley Province
    Schulze, H. & Otto, J. (1993) Rumuruti: A New Carlisle Lakes-type Chondrite, Meteoritics 28 (3): 433. (July 1993) ; Schulze, H., Bischoff, A., Palme, H., Spettel, B., Dreibus, G. & Otto, J. (1994). Mineralogy and chemistry of Rumuruti: The first meteorite fall of the new R chondrite group, Meteoritics 29 (2), 275-286. (March 1994)
    Malaysia
     
    • Borneo Island
      • Sarawak
    Mineralogical Magazine (1983): 47: 79-80.
    Mexico
     
    • Coahuila
      • Mun. de Cuatrociénegas
        • Cuatro Ciénegas (Cuatrociénegas de Carranza; Venustiano Carranza)
          • Limestone caves
    Forti, P. et al. (2006): ACTA CARSOLOGICA 35/1, 79–98.
    • Durango
      • Mun. de Mapimí
        • Mapimí
    Panczner (1987): 392.
    Morocco
     
    • Marrakech-Tensift-El Haouz Region
      • El Kelaâ des Sraghna Province
        • Sidi Bou Othmane
    Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
    Greshake, A. (2014) A strongly hydrated microclast in the Rumuruti chondrite NWA 6828: Implications for the distribution of hydrous material in the solar system. Meteoritics & Planetary Science 49 (5): 824-841. (May 2014)
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
    Favreau, G. (2012): Les minéralisations à phosphates de la pegmatite d'Angarf-Sud (Maroc).Le Cahier des Micromonteurs, 3-2012, 3-70.
    Namibia
     
    • Erongo Region
      • Karibib District
        • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
    P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593.
        • Usakos
    Von Bezing, L., Bode, R., and Jahn, S., (2008) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern. 409 (in English).
    Keller, P. (1974): Phosphatmineralien aus Pegmatiten Südwestafrikas. Der Aufschluss 25,577-591.
    • Otjikoto Region (Oshikoto)
      • Tsumeb
    New Mineral Names. Mineral News, 28, #1 (January 2012), 13.
    Nigeria
     
    • Katsina State
    T.J. McCoy, M. Wadhwa, K. Keil, New lithologies in the Zagami meteorite: evidence for fractional crystallization of a single magma unit on Mars, Geochimica et Cosmochimica Acta, Volume 63, Issues 7–8, April 1999, Pages 1249-1262,
    Norway
     
    • Telemark
      • Bamble (Bamle)
    Morton, R. D. (1961): Contributions to the mineralogy of Norway. No.9). On the occurrence of two rare phospates in the Ødegården Apatite mines, Bamble, South Norway. Norsk Geologisk Tidsskrift 41: 233-246; Griffin et al. (1972); Neumann (1985, p. 115).
    Oman
     
    • Dhofar Province (Al Janubiyah Province)
    Taylor, L. A., Nazarov, M. A., Ivanova, M. A., Patchen, A., Clayton, R. N., & Mayeda, T. K. (2000). Petrology of the Dhofar 019 shergottite. Meteoritics and Planetary Science Supplement, 35, 155.
    Yukio, I., Makoto, K., Hiroshi, T., Gen, S., Kita, N., Yuichi, M., ... & Gerlind, D. (2006). Petrology of a new basaltic shergottite: Dhofar 378. Antarctic Meteorite Research, 19, 20-44.
    Philippines
     
    • Luzon
      • Calabarzon Region
        • Quezon province
    H. J. Axon and M. J. Nasir (1977) A Metallographic and Microprobe Examination of a Metallic Nodule from the Bondoc Peninsula Meteorite. Mineralogical Magazine 41:121-122.
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Sowie Mts
    Pieczka A., Łobos K., Sachanbiński M. 2004: The first occurence of elbaite in Poland. Mineralogia Polonica, vol. 35, 3-14
    Puerto Rico
     
    • Mayaguez
    [var: Martinite (of Kloos)] Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Wise, W. (1997), J. Cave and Karst Studies, 53,170.
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Buriatia Republic (Buryatia)
          • Dzhida Basin
            • Zakamensk
              • Dzhida W-Mo District
    Pavel M. Kartashov data
    Saint Helena
     
    [var: Martinite (of Kloos)] Richard, G. (1928): Newberyite and other phosphates from Ascension Island. Am. Mineral. 13, 397-401.; American Mineralogist 28:215-232
    Saudi Arabia
     
    • Mintaqah Makkah
    Saudi Geological Survey Open-File Report SGS-OF-2004-12, 68 p.
    South Africa
    Cairncross, B. and Dixon, R., (1995), Minerals of South Africa.
    • Mpumalanga Province
      • Ehlanzeni District
        • Nelspruit
    Martini, J.E.J. et al (1997), "Mbobo Mkulu Cave, South Africa", in "Cave Minerals of the World" (1997)
    Spain
     
    • Andalusia
      • Granada
    Takeda, H., Hsu, W., & Huss, G. R. (2003). Mineralogy of silicate inclusions of the Colomera IIE iron and crystallization of Cr-diopside and alkali feldspar from a partial melt. Geochimica et Cosmochimica Acta, 67(12), 2269-2287.
    • Aragón
      • Huesca
    Domanik, K. J., Sideras, L. C. & Drake, M. J. (2005) Olivine and Ca-Phosphate in the Diogenites Manegaon and Roda: Lunar and Planetary Science Conference XXXVI, abstract no.2128.
    • Catalonia
      • Barcelona
        • Vallès Occidental
          • Montcada i Reixac
    Analized by Joan Rosell and Dr Joan Viñals
    The Moon
     
    • Descartes Highlands
    Dowty, E., Keil, K., & Prinz, M. (1974) Igneous rocks from Apollo 16 rake samples. In: Lunar Science Conference, 5th, Houston, Tex., March 18-22, 1974, Proceedings. Volume 2. (A75-39540 19-91) New York, Pergamon Press, Inc., 1974, p. 431-445.
    USA
     
    • California
      • Trinity Co.
        • Klamath Mts
    Lydon, Philip Andrew (1964), Unusual phosphatic rock: California Division of Mines & Geology, Mineral Information Service: 17: 66-74; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 80, 384; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 317, 318.
    • Illinois
      • Jo Daviess Co.
        • Woodbine
    Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    • Iowa
      • Emmet Co.
    Fuchs L H (1967) Abstract of paper presented at the twelfth annual meeting: Stanfieldite, a new phosphate mineral in stony-iron meteorites. The Canadian Mineralogist 9, 289-290
    • Maine
      • Androscoggin Co.
        • Poland
    KKing, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
      • Oxford Co.
        • Newry
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3.
        • Rumford
    King & Foord, 1994. Mineralogy of Maine, V. 1.; King and Foord, 2000, Addenda to Volume 1, Mineralogy of Maine, v. 2.
    • Nevada
      • Eureka Co.
        • Lynn District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Humboldt Co.
        • Potosi District
          • Twin Creeks Mine
    Min News (1999) 15:6 pp 1,5-8
    • New Hampshire
      • Grafton Co.
        • Groton
    American Mineralogical Society, Program and Abstracts (1940) p. 7; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 686, 842, 953, 977; Rocks & Minerals: 16: 208-211.; Mineralogical Record (1973) 4:103-130; USGS Prof Paper 255; USGS Prof Paper 353; American Mineralogist (1953): 38: 728-729.
      • Strafford Co.
        • Strafford
          • Parker Mountain
    Rocks & Min.:64:504.; Rocks & Minerals 80:4 pp234-241
    • South Dakota
      • Custer Co.
        • Custer District
          • Custer
    Januzzi, R.E. and Seaman, David M. (1976) Mineral Localities Of Connecticut and Southern New York State and Pegmatite Minerals of the World.
          • Fourmile
    Mineralogical Record: 14: 195; Rocks & Minerals: 60: 117.
          • Pringle
            • Cicero Peak
    Rocks & Minerals: 75(3): 156-169.
    • Texas
      • Castro Co.
        • Dimmitt
    Rubin, A. E., Scott, E. R., Taylor, G. J., Keil, K., Allen, J. S., Mayeda, T. K., ... & Bogard, D. D. (1983). Nature of the H chondrite parent body regolith: Evidence from the Dimmitt breccia. Journal of Geophysical Research: Solid Earth (1978–2012), 88(S02), A741-A754.
    • Utah
      • Rich Co.
        • Crawford Mts
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Laketown District
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Woodruff Creek
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • West Virginia
      • Grant Co.
        • Landes
    Meteoritics, volume 7, number 1, pages 31-38
    • Wisconsin
      • Waushara Co.
        • Saxeville
    Bunch, T.E., Keil, K., and Olsen, E. (1970): Contributions to Mineralogy and Petrology 25, 297-340.
    Venezuela
     
    • Dependencias Federales
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 661, 686.; American Mineralogist 28:215-232
    • Miranda
    Urbani, 1997. Bol. Soc. Venezolana de Espeleología, no.30.
    Franco Urbani (2009) Venezuelan Cave Minerals: Second Review. Mineralogy 1 2009 ICS Proceedings. In 15th International Congress of Speleology. p 345
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