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Benyacarite

A valid IMA mineral species
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05764810014946984064308.jpg
Benyacarite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
06798410015453811835066.jpg
Benyacarite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
02050110014949940318689.jpg
Benyacarite, etc.

El Criollo Mine, Cerro Blanco pegmatite district, Tanti, San Roque District, Punilla Department, Córdoba Province, Argentina
05928210014946618221140.jpg
Benyacarite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
06798410015453811835066.jpg
Benyacarite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
02050110014949940318689.jpg
Benyacarite, etc.

El Criollo Mine, Cerro Blanco pegmatite district, Tanti, San Roque District, Punilla Department, Córdoba Province, Argentina
00097780014946984075370.jpg
Benyacarite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
06798410015453811835066.jpg
Benyacarite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
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About BenyacariteHide

Formula:
(H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2O
Formerly given as (H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2·14H2O.

Change basis:
Grey, I.E., Bosi, F. (2023): Proposal 23-D
Colour:
Light greenish yellow to light brown
Lustre:
Vitreous
Hardness:
2½ - 3
Specific Gravity:
2.37 (Calculated)
Crystal System:
Orthorhombic
Name:
Named by Francesco Demartin, Hebe Dina Gay, Carlo Maria Gramaccioli, Tullio Pilatti in 1995 in honor of Maria Angelica Rodríguez de Benyacar (8 December 1928 -), Comision Nacional de Energia Atomica, Buenos Aires, Argentina, for her contribution to mineralogical studies.
A K-dominant end-member (probably new mineral) was reported by Sejkora et al. (2006).

Compare also paulkerrite and mantienneite.


Unique IdentifiersHide

Mindat ID:
6823
Long-form identifier:
mindat:1:1:6823:5
GUID
(UUID V4):
ade49370-6dd9-43ce-8b69-a416983a18ca

IMA Classification of BenyacariteHide

Classification of BenyacariteHide

Strunz-mindat (2024):
8.DH.35

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
Dana 8th ed.:
42.11.21.4

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
BycIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of BenyacariteHide

Lustre:
Vitreous
Transparency:
Transparent
Colour:
Light greenish yellow to light brown
Streak:
White
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Very brittle
Cleavage:
Perfect
{010} perfect
Fracture:
Irregular/Uneven
Density:
2.37 g/cm3 (Calculated)

Optical Data of BenyacariteHide

Type:
Biaxial (+)
RI values:
nα = 1.612(3) nβ = 1.621(3) nγ = 1.649(3)
2V:
Measured: 60° , Calculated: 60°
Birefringence:
0.037
Max Birefringence:
δ = 0.037
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none
Optical Extinction:
Parallel. XYZ = bca
Pleochroism:
Non-pleochroic

Chemistry of BenyacariteHide

Mindat Formula:
(H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2O

Formerly given as (H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2·14H2O.

Change basis:
Grey, I.E., Bosi, F. (2023): Proposal 23-D
Elements listed:
F, Fe, H, Mn, O, P, Ti - search for minerals with similar chemistry

Crystallography of BenyacariteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbca
Setting:
Pbca
Cell Parameters:
a = 10.561(5) Å, b = 20.585(8) Å, c = 12.516(2) Å
Ratio:
a:b:c = 0.513 : 1 : 0.608
Unit Cell V:
2,720.96 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Tabular to equidimensional. Forms {010}, {111}, {001}, and {100}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0011061BenyacariteDemartin F, Pilati T, Gay H D, Gramaccioli C M (1993) The crystal structure of a mineral related to paulkerrite Zeitschrift fur Kristallographie 208 57-711993granitic pegmatites in Cerro Blanco, Tanti, Cordoba, Argentina0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.26 Å(100)
3.13 Å(100)
10.29 Å(90)
7.51 Å(80)
3.76 Å(50)
5.16 Å(40)
3.96 Å(40)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]
47e : [Vanadates, chromates, manganates]
Geological Setting:
Late stage phosphate mineralization in a granite pegmatite

Type Occurrence of BenyacariteHide

Type Locality:
ⓘ El Criollo Mine, Cerro Blanco pegmatite district, Tanti, San Roque District, Punilla Department, Córdoba Province, Argentina
General Appearance of Type Material:
Small (0.2 -0.3 mm) nearly light greenish yellow to light brown crystals with {010}, {111}, {001}, and {100}.
Place of Conservation of Type Material:
Mineralogical Museum of the Department of Earth Sciences, University of Milano, Italy.
Geological Setting of Type Material:
Late stage phosphate mineralization in a granite pegmatite.
Associated Minerals at Type Locality:
TripliteStrengiteRockbridgeitePhosphosideritePachnolite
LipscombiteLibetheniteHentscheliteFluorapatiteFluellite
DufréniteBermanite
Reference:
Demartin, F., Gay, H.D., Gramaccioli, C.M., and Pilati, T. (1997) Benyacarite, a new titanium-bearing phosphate mineral species from Cerro Blanco, Argentina. The Canadian Mineralogist: 35: 707–712.
Download:
https://rruff.info/rruff_1.0/uploads/CM35_707.pdf

Synonyms of BenyacariteHide

Other Language Names for BenyacariteHide

Varieties of BenyacariteHide

MatveeviteA Mg-Al-bearing benyacarite.

Relationship of Benyacarite to other SpeciesHide

Member of:
Paulkerrite Group
Other Members of this group:
HochleitneriteMn2Ti3(PO4)4O2(H2O)2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
Hydroxylbenyacarite(H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2O Orth. mmm (2/m 2/m 2/m) : Pbca
MacraeiteK(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2OMon. 2/m : P21/b
MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca
PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OMon. m
Pleysteinite[(H2O)0.5K0.5]2Mn2Al3(PO4)4F2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
Rewitzerite[K(H2O)]Mn2Al3(PO4)4(OH)2 · 14H2OMon. 2/m : P21/b
Sperlingite (H2O)K(Mn2+Fe3+)(Al2Ti)(PO4)4[O(OH)] [(H2O)9(OH)] · 4H2OMon. 2/m : P21/b

Common AssociatesHide

Associated Minerals Based on Photo Data:
26 photos of Benyacarite associated with PhosphosideriteFePO4 · 2H2O
8 photos of Benyacarite associated with StrengiteFePO4 · 2H2O
4 photos of Benyacarite associated with RockbridgeiteFe2+Fe3+4(PO4)3(OH)5
2 photos of Benyacarite associated with PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2O
2 photos of Benyacarite associated with Nsutite(Mn4+,Mn2+)(O,OH)2
1 photo of Benyacarite associated with CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
1 photo of Benyacarite associated with ZwieseliteFe2+2(PO4)F
1 photo of Benyacarite associated with TorberniteCu(UO2)2(PO4)2 · 12H2O
1 photo of Benyacarite associated with FrondeliteMn2+Fe3+4(PO4)3(OH)5

Related Minerals - Strunz-mindat GroupingHide

8.DH.FerroberauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2OMon. 2/m : B2/b
8.DH.Rowleyite[Na(NH4,K)9Cl4][V5+,4+2(P,As)O8]6 · n[H2O,Na,NH4,K,Cl]Iso.
8.DH.Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2OMon. 2/m : P21/m
8.DH.Thebaite-(NH4)(NH4)3Al(C2O4)(PO3OH)2(H2O)Mon. 2/m : P21/b
8.DH.Dendoraite-(NH4)(NH4)2NaAl(C2O4)(PO3OH)2(H2O)2Mon. 2/m
8.DH.Whiteite-(MnMnMn)Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.Whiteite-(CaMnFe)CaMnFe2Al2(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.HochleitneriteMn2Ti3(PO4)4O2(H2O)2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.RegeriteKFe6(PO4)4(OH)7(H2O)6 · 4H2OMon. 2/m : P21/b
8.DH.05MinyuliteKAl2(PO4)2F · 4H2OOrth. mm2 : Pba2
8.DH.10LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m : P21/b
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon. 2/m
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15KeckiteCaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2OMon. 2/m : P2/b
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2OOrth.
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMg){(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
8.DH.15Whiteite-(CaMnMn){Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Whiteite-(MnMnMg)MnMnMg2Al2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(MnMnMg)Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaFeMg)CaFe2+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(MnMnFe)Mn2+Mn2+Fe2+2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Whiteite-(CaMgMg)CaMg3Al2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(MnMnZn)Mn2+Mn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMn)NaMn2+(Mn2+Fe3+)Σ2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnZn)CaMn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.20Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pcca
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.25CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m : B2/b
8.DH.25KingsmountiteCa3MnFeAl4(PO4)6(OH)4 · 12H2OTric. 1 : P1
8.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.
8.DH.25FanfaniiteCa4MnAl4(PO4)6(OH)4 · 12H2OMon. 2/m : B2/b
8.DH.30ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.
8.DH.30MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m : P21/b
8.DH.30RobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. m : Bb
8.DH.30Sailaufite(Ca,Na,◻)2Mn3+3(AsO4)2(CO3)O2 · 3H2OMon. m : Bm
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OMon. m
8.DH.35Hydroxylbenyacarite(H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2O Orth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35MacraeiteK(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2OMon. 2/m : P21/b
8.DH.35Sperlingite (H2O)K(Mn2+Fe3+)(Al2Ti)(PO4)4[O(OH)] [(H2O)9(OH)] · 4H2OMon. 2/m : P21/b
8.DH.40XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric. 1 : P1
8.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m
8.DH.60BouazzeriteBi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2OMon. 2/m
8.DH.65GalliskiiteCa4Al2(PO4)2F8 · 5H2OTric. 1 : P1
8.DH.70JoteiteCa2CuAl(AsO4)[AsO3(OH)]2(OH)2 · 5H2OTric. 1 : P1
8.DH.75KampeliteBa6Mg3Sc8(PO4)12(OH)6 · 7H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.DH.80KapundaiteNaCaFe4(PO4)4(OH)3 · 5H2OTric. 1 : P1
8.DH.85VaniniiteCa2Mn2+3Mn3+2O2(AsO4)4 · 2H2OMon. 2/m : P21/b

Fluorescence of BenyacariteHide

In UV light:
Not fluorescent.

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.

Internet Links for BenyacariteHide

References for BenyacariteHide

Localities for BenyacariteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina (TL)
 
  • Córdoba Province
    • Punilla Department
      • San Roque District
        • Tanti
          • Cerro Blanco pegmatite district
Demartin et al. (1993) +2 other references
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
      • Krásno
Sejkora et al. (2006)
  • Vysočina Region
    • Žďár nad Sázavou District
      • Bory
        • Horní Bory
          • Cyrilov (Cyrillhof)
Škoda +1 other reference
Germany
 
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
DILL et al. (2009)
Anthony et al. (2000) +1 other reference
        • Waidhaus
Dill (2009)
KECK et al. (1998) +1 other reference
Morocco
 
  • Marrakesh-Safi Region
    • Rehamna Province
      • Sidi Bou Othmane Cercle
        • Jebilet Mtn (Djebilet Mtn)
          • Sidi Bou Othmane
Georges Favreau collection
Portugal
 
  • Guarda
    • Gouveia
      • Folgosinho
Alves (n.d.) +1 other reference
    • Sabugal
      • Bendada
Christian Rewitzer collection / analysed
Alves (n.d.)
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