Whitlockite R070675

Name: Whitlockite
RRUFF ID: R070675
Ideal Chemistry: Ca9Mg(PO3OH)(PO4)6
Locality: Palermo mine, North Groton, New Hampshire, USA
Source: Rock Currier [view label]
Owner: RRUFF
Description: Colorless blocky modified rhombic crystals
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Cerite (10) ]
Quick search: [ All Whitlockite samples (2) ]
RRUFF ID: R070675.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca8.70Na0.27Sr0.02Mn0.01)Σ=9(Mg0.73Fe3+0.19Al0.08)Σ=1(P1.00O4)6(P1.00O3((OH)0.58F0.42)Σ=1); OH estimated by charge balance
Microprobe Data File: [ Download Excel File ]
Sample Description: Sample is oriented and mounted on a pin.
Pin ID: M00295
Orientation: Laser parallel to  c*  (0 0 1).     Fiducial mark perpendicular to laser is parallel to  a   [1 0 0].

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RRUFF ID: R070675
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R070675.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.347(2)Å    b: 10.347(2)Å    c: 37.089(5)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 3438.6(8)Å3    Crystal System: hexagonal
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Whitlockite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Frondel C (1941) Whitlockite: a new calcium phosphate, Ca3(PO4)2, American Mineralogist, 26, 145-152   [view file]

Frondel C (1943) Mineralogy of calcium phosphates in insular phosphate rock, American Mineralogist, 28, 215-232   [view file]

Frondel C (1949) Wolfeite, xanthoxenite, and whitlockite from the Palermo mine, New Hampshire, American Mineralogist, 34, 692-705   [view file]

Gopal R, Calvo C (1972) Structural relationship of whitlockite and β Ca3(PO4)2, Nature Physical Science, 237, 30-32

Gopal R, Calvo C, Ito J, Sabine W K (1974) Crystal structure of synthetic Mg-whitlockite, Ca18Mg2H2(PO4)14, Canadian Journal of Chemistry, 52, 1155-1164

Calvo C, Gopal R (1975) The crystal structure of whitlockite from the Palermo quarry, American Mineralogist, 60, 120-133   [view file]

Kostiner E, Rea J R (1976) The crystal structure of manganese-whitlockite, Ca18Mn2H2(PO4)14, Acta Crystallographica, B32, 250-253

Schroeder L W, Dickens B, Brown W E (1977) Crystallographic studies of the role of Mg as a stabilizing impurity in β-Ca3(PO4)2. II. Refinement of Mg-containing β-Ca3(PO4)2, Journal of Solid State Chemistry, 22, 253-262

Jolliff B L, Hughes J M, Freeman J J, Zeigler R A (2006) Crystal chemistry of lunar merrillite and comparison to other meteoritic and planetary suites of whitlockite and merrillite, American Mineralogist, 91, 1583-1595   [view file]

Tsirlin A A, Dikarev E V, Shpanchenko R V, Antipov E V (2006) A new whitlockite, Ca8.42Na1.16V(PO4)7, Acta Crystallographica, C62, i13-i15

Zatovsky I V, Strutynska N Y, Baumer V N, Shishkin O V, Slobodyanik N S (2007) The whitlockite-related phosphate Ca9Cr(PO4)7, Acta Crystallographica, E63, i180-i181

Hughes J M, Jolliff B L, Rakovan J (2008) The crystal chemistry of whitlockite and merrillite and the dehydrogenation of whitlockite to merrillite, American Mineralogist, 93, 1300-1305   [view file]

Orlova A I, Khainakov S A, Loginova E E, Oleneva T A, Garcia Granda S, Kurazhkovskaya V S (2009) Calcium thorium phosphate (whitlockite-type mineral). Synthesis and structure refinement, Crystallography Reports, 54, 591-597

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

Kolitsch U, Rieck B, Brandstätter F, Schreiber F, Fabritz K H, Blaß G, Gröbner J (2014) Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (II), Mineralien Welt, 25, 82-95

McCubbin F M, Phillips B L, Adcock C T, Tait K T, Steele A, Vaughn J S, Fries M D, Atudorei V, Vander Kaaden K E, Hausrath E M (2018) Discreditation of bobdownsite and the establishment of criteria for the identification of minerals with essential monofluorophosphate (PO3F2-), American Mineralogist, 103, 1319–1328   [view file]