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Wopmayite

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Wilfrid Reid "Wop" May
Formula:
Ca6Na3□Mn(PO4)3(PO3OH)4
Colour:
colorless to white to pale pink
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.027 (Calculated)
Crystal System:
Trigonal
Name:
After Wilfrid Reid “Wop” May ((March 20, 1896 – June 21, 1952) who was born in Carberry, Manitoba, Canada. “Wop” May was a pioneering aviator who created the role of the bush pilot, and opened up the Canadian North to mineral exploration and mining.
Structurally related to whitlockite.



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Classification of WopmayiteHide

Approved
Approval Year:
2011
8.AC.

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

Physical Properties of WopmayiteHide

Vitreous
Transparency:
Transparent
Colour:
colorless to white to pale pink
Streak:
white
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.027 g/cm3 (Calculated)

Optical Data of WopmayiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.617() nε = 1.613(2)
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of WopmayiteHide

Formula:
Ca6Na3□Mn(PO4)3(PO3OH)4
IMA Formula:
Ca6Na3◻Mn(PO4)3(PO3OH)4

Crystallography of WopmayiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3c
Cell Parameters:
a = 10.3926(2) Å, c = 37.1694(9) Å
Ratio:
a:c = 1 : 3.577
Unit Cell V:
3,476.68 ų (Calculated from Unit Cell)
Z:
6
Morphology:
Corroded rhomb.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.017(31)
6.421(32)
5.166(33)
3.425(29)
3.186(88)
2.858(100)
2.736(27)
2.589(68)

Type Occurrence of WopmayiteHide

General Appearance of Type Material:
rhombic crystals
Place of Conservation of Type Material:
Department of Natural History, Royal Ontario Museum, Toronto, Ontario, Canada, catalogue number M40501.
Geological Setting of Type Material:
zoned petalite-subgroup pegmatite after dissolution of primary lithiophosphate by hydrothermal solutions
Associated Minerals at Type Locality:

Synonyms of WopmayiteHide

Relationship of Wopmayite to other SpeciesHide

Structurally related to group(s):
Whitlockite GroupGroup of structurally complex Ca-metal-phosphates.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Apatite2 photos of Wopmayite associated with Apatite on mindat.org.
Quartz2 photos of Wopmayite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AC.05HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
8.AC.10Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
8.AC.10Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3Mon. 2/m : P2/b
8.AC.10Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
8.AC.10Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
8.AC.10HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
8.AC.10JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
8.AC.10Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
8.AC.10NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
8.AC.10VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
8.AC.10FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
8.AC.10BradaczekiteNaCu4(AsO4)3Mon. 2/m : B2/b
8.AC.10YazganiteNaFe3+2(Mg,Mn2+)(AsO4)3 · H2OMon. 2/m : B2/b
8.AC.10GroatiteNaCaMn2(PO4)(HPO4)2Mon. 2/m : B2/b
8.AC.15BobfergusoniteNa2Mn5FeAl(PO4)6Mon. 2/m : P2/b
8.AC.15Ferrowyllieite(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3Mon. 2/m : P21/b
8.AC.15Rosemaryite(Na,Ca,Mn)(Mn,Fe2+)(Fe3+,Mg)Al(PO4)3Mon. 2/m : P21/b
8.AC.15Wyllieite(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO4)3Mon. 2/m
8.AC.15Ferrorosemaryite◻NaFe2+Fe3+Al(PO4)3Mon.
8.AC.15Qingheiite-(Fe2+)Na2Fe2+MgAl(PO4)3Mon. 2/m : P21/m
8.AC.18ManitobaiteNa16Mn2+ 25Al8(PO4)30Mon. m : Pb
8.AC.20MarićiteNaFe2+(PO4)Orth. mmm (2/m 2/m 2/m) : Pmna
8.AC.25Berzeliite(NaCa2)Mg2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25ManganberzeliiteNaCa2Mn2+2(AsO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25Palenzonaite(Ca,Na)3CaMn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25SchäferiteCa2NaMg2(VO4)3Iso.
8.AC.30BrianiteNa2CaMg(PO4)2Mon. 2/m : P21/b
8.AC.35Vitusite-(Ce)Na3(Ce,La,Nd)(PO4)2Orth. mm2 : Pca21
8.AC.40Olgite(Sr,Ba)(Na,Sr,REE)2Na(PO4)2Trig. 3m (3 2/m) : P3m1
8.AC.40Bario-olgite(Ba,Sr)(Na,Sr,REE)2Na(PO4)2 · Trig. 3 : P3
8.AC.45StrontiowhitlockiteSr9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45WhitlockiteCa9Mg(PO4)6(HPO4)Trig. 3m : R3c
8.AC.45MerrilliteCa9NaMg(PO4)7Trig. 3m : R3m
8.AC.45TuiteCa3(PO4)2Trig. 3m (3 2/m) : R3m
8.AC.45FerromerrilliteCa9NaFe2+(PO4)7Trig. 3m : R3c
8.AC.50Chladniite{Ca}{Na8}{Ca4Na4}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.
8.AC.50Galileiite{Fe2+}{Na8}{Fe2+4Na4}{Fe2+43}(PO4)36Trig. 3 : R3
8.AC.50Stornesite-(Y){(Y, Ca)}{Na62}{(Ca,Na)8}{(Mg,Fe2+)43}(PO4)36Trig. 3 : R3
8.AC.50XenophylliteNa4Fe2+7(PO4)6Tric. 1 : P1
8.AC.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2Trig.
8.AC.60KosnariteKZr2(PO4)3Trig. 3m (3 2/m) : R3c
8.AC.65Panethite(Na,Ca)2(Mg,Fe2+)2(PO4)2Mon. 2/m : P21/b
8.AC.70StanfielditeCa4Mg5(PO4)6Mon.
8.AC.75RonneburgiteK2MnV4O12Mon. 2/m
8.AC.80Tillmannsite(Ag3Hg)(VO4,AsO4)Tet. 4 : I4
8.AC.85FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m

Other InformationHide

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

References for WopmayiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cooper, M.A., Ramik, R., Hawthorne, F.C., Ball, N.A., Abdu, Y.A. and Tait, K.T. (2012): Wopmayite, IMA 2011-093. CNMNC Newsletter No. 12, February 2012, page 155; Mineralogical Magazine, 76, 151-155
Cooper M A, Hawthorne F C, Abdu Y A, Ball N A, Ramik R A, Tait K T (2013) Wopmayite, ideally Ca6Na3 Mn(PO4)3(PO3OH)4, a new phosphate mineral from the Tanco Mine, Bernic Lake, Manitoba: description and crystal structure. The Canadian Mineralogist 51, 93-106

Internet Links for WopmayiteHide

Localities for WopmayiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Canada (TL)
 
  • Manitoba
    • Lac-du-Bonnet area
      • Bernic Lake
Cooper, M.A., Ramik, R., Hawthorne, F.C., Ball, N.A., Abdu, Y.A. and Tait, K.T. (2012): Wopmayite, IMA 2011-093. CNMNC Newsletter No. 12, February 2012, page 155; Mineralogical Magazine, 76, 151-155
Mineral and/or Locality  
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