Zanazziite
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About Zanazziite
Formula:
Ca2Mg5Be4(PO4)6(OH)4 · 6H2O
The formula given above is the idealised formula. The type description and Mandarino (1997) writes the formula as Ca2(Mg,Fe3+)(Mg,Fe2+, Al)Be4Mg5(PO4)6(OH)4.6H2O
Colour:
Pale to dark olive-green
Lustre:
Vitreous, Pearly
Hardness:
5
Specific Gravity:
2.76
Crystal System:
Monoclinic
Member of:
Name:
Named by Peter B. Leavens, John S. White, and John A. Nelen in 1990 in honour of Pier Francesco Zanazzi (b. April 30, 1939), Crystallographer and Professor of Mineralogy at the University of Perugia (Italy)
Type Locality:
Classification of Zanazziite
Approved
Approval Year:
1986
7/D.01-50
8.DA.10
8.DA.10
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations
42.7.7.3
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
19.12.64
19 : Phosphates
12 : Phosphates of Mn
19 : Phosphates
12 : Phosphates of Mn
Physical Properties of Zanazziite
Vitreous, Pearly
Transparency:
Translucent
Comment:
Pearly on cleavages
Colour:
Pale to dark olive-green
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good on {100}
Distinct on {010}
Good on {100}
Distinct on {010}
Density:
2.76 g/cm3 (Measured) 2.77 g/cm3 (Calculated)
Optical Data of Zanazziite
Type:
Biaxial (+)
RI values:
nα = 1.606(2) nβ = 1.610 nγ = 1.620
2V:
Measured: 72° , Calculated: 66°
Max Birefringence:
δ = 0.014

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v
Chemical Properties of Zanazziite
Formula:
Ca2Mg5Be4(PO4)6(OH)4 · 6H2O
The formula given above is the idealised formula. The type description and Mandarino (1997) writes the formula as Ca2(Mg,Fe3+)(Mg,Fe2+, Al)Be4Mg5(PO4)6(OH)4.6H2O
The formula given above is the idealised formula. The type description and Mandarino (1997) writes the formula as Ca2(Mg,Fe3+)(Mg,Fe2+, Al)Be4Mg5(PO4)6(OH)4.6H2O
Common Impurities:
Mn,Si
Crystallography of Zanazziite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 15.874(4) Å, b = 11.854(3) Å, c = 6.605(1) Å
β = 95.35°
β = 95.35°
Ratio:
a:b:c = 1.339 : 1 : 0.557
Unit Cell V:
1237 ų
Z:
2
Morphology:
Barrel-shaped pseudohexagonal crystals. Forms observed: {100}, {11O}and {001}.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.50 | (90) |
5.91 | (100) |
3.16 | (70) |
3.05 | (50) |
2.766 | (50) |
2.682 | (40b) |
2.208 | (40) |
1.642 | (50b) |
Comments:
From type description
Type Occurrence of Zanazziite
General Appearance of Type Material:
As barrel-shaped crystals and crystal rosettes up to 4 mm.
Place of Conservation of Type Material:
The holotype specimen, #R17847, is preserved at the
Smithsonian Institution.
Smithsonian Institution.
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:
Synonyms of Zanazziite
Other Language Names for Zanazziite
Relationship of Zanazziite to other Species
Member of:
Other Members of this group:
Atencioite | Ca2Fe2+3Mg2Be4(PO4)6(OH)4 · 6H2O | |
Footemineite | Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2O | Tric. 1 : P1 |
Greifensteinite | Ca2Fe2+5Be4(PO4)6(OH)4 · 6H2O | Mon. |
Guimarãesite | Ca2Be4Zn5(PO4)6(OH)4 · 6H2O | Mon. 2/m : B2/b |
Okruschite | Ca2Mn2+5Be4(AsO4)6(OH)4·6H2O | Mon. 2/m : B2/b |
Roscherite | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O | Mon. 2/m : B2/m |
Ruifrancoite | Ca2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2O | Mon. 2/m : B2/b |
Common Associates
Associated Minerals Based on Photo Data:
Eosphorite | 48 photos of Zanazziite associated with Eosphorite on mindat.org. |
Albite | 38 photos of Zanazziite associated with Albite on mindat.org. |
Kosnarite | 34 photos of Zanazziite associated with Kosnarite on mindat.org. |
Rose Quartz | 33 photos of Zanazziite associated with Rose Quartz on mindat.org. |
Quartz | 25 photos of Zanazziite associated with Quartz on mindat.org. |
Hydroxylherderite | 13 photos of Zanazziite associated with Hydroxylherderite on mindat.org. |
Topaz | 13 photos of Zanazziite associated with Topaz on mindat.org. |
Cookeite | 12 photos of Zanazziite associated with Cookeite on mindat.org. |
Fluorapatite | 9 photos of Zanazziite associated with Fluorapatite on mindat.org. |
Mica Group | 7 photos of Zanazziite associated with Mica Group on mindat.org. |
Related Minerals - Nickel-Strunz Grouping
8.DA.05 | Bearsite | Be2(AsO4)(OH) · 4H2O | Mon. |
8.DA.05 | Moraesite | Be2(PO4)(OH) · 4H2O | Mon. |
8.DA.10 | Roscherite | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O | Mon. 2/m : B2/m |
8.DA.10 | Greifensteinite | Ca2Fe2+5Be4(PO4)6(OH)4 · 6H2O | Mon. |
8.DA.10 | Atencioite | Ca2Fe2+3Mg2Be4(PO4)6(OH)4 · 6H2O | |
8.DA.10 | Ruifrancoite | Ca2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2O | Mon. 2/m : B2/b |
8.DA.10 | Guimarãesite | Ca2Be4Zn5(PO4)6(OH)4 · 6H2O | Mon. 2/m : B2/b |
8.DA.10 | Footemineite | Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2O | Tric. 1 : P1 |
8.DA.15 | Uralolite | Ca2Be4(PO4)3(OH)3 · 5H2O | Mon. |
8.DA.20 | Weinebeneite | CaBe3(PO4)2(OH)2 · 4H2O | Mon. |
8.DA.25 | Tiptopite | K2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2O | Hex. |
8.DA.30 | Veszelyite | (Cu,Zn)2Zn(PO4)2 · 2H2O | Mon. 2/m : P21/b |
8.DA.35 | Kipushite | (Cu,Zn)5Zn(PO4)2(OH)6 · H2O | Mon. |
8.DA.35 | Philipsburgite | (Cu,Zn)6(AsO4,PO4)2(OH)6 · H2O | Mon. |
8.DA.40 | Spencerite | Zn4(PO4)2(OH)2 · 3H2O | Mon. 2/m : P2/b |
8.DA.45 | Glucine | CaBe4(PO4)2(OH)4 · 0.5H2O | |
8.DA.50 | Ianbruceite | [Zn2(OH)(H2O)(AsO4)](H2O)2 | Mon. 2/m : P21/b |
Related Minerals - Dana Grouping (8th Ed.)
42.7.7.1 | Roscherite | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O | Mon. 2/m : B2/m |
42.7.7.4 | Ruifrancoite | Ca2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2O | Mon. 2/m : B2/b |
Related Minerals - Hey's Chemical Index of Minerals Grouping
19.12.1 | Metaswitzerite | Mn2+3(PO4)2 · 4H2O | Mon. 2/m : P2/b |
19.12.2 | Bermanite | Mn2+Mn3+2(PO4)2(OH)2 · 4H2O | Mon. 2/m : P2/b |
19.12.3 | Natrophilite | NaMn2+PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.4 | Sidorenkite | Na3Mn2+(CO3)(PO4) | Mon. |
19.12.5 | Niahite | (NH4)(Mn2+,Mg)(PO4) · H2O | Orth. mm2 : Pmn21 |
19.12.6 | Robertsite | Ca2Mn3+3(PO4)3O2 · 3H2O | Mon. m : Bb |
19.12.7 | Pararobertsite | Ca2Mn3+3(PO4)3O2 · 3H2O | Mon. 2/m : P21/b |
19.12.8 | Sinkankasite | Mn2+Al(PO3OH)2(OH) · 6H2O | Tric. |
19.12.9 | Mangangordonite | Mn2+Al2(PO4)2(OH)2 · 8H2O | Tric. |
19.12.10 | Heterosite | (Fe3+,Mn3+)PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.11 | Purpurite | (Mn3+,Fe3+)PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.12 | Wolfeite | (Fe2+,Mn2+)2(PO4)(OH) | Mon. 2/m : P21/b |
19.12.13 | Triploidite | (Mn2+,Fe2+)2(PO4)(OH) | Mon. 2/m : P2/b |
19.12.14 | Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 | Tet. |
19.12.15 | Frondelite | Mn2+Fe3+4(PO4)3(OH)5 | Orth. 2 2 2 : C2 2 21 |
19.12.16 | Rockbridgeite | Fe2+Fe3+4(PO4)3(OH)5 | Orth. mmm (2/m 2/m 2/m) |
19.12.17 | Kryzhanovskite | (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 | Orth. |
19.12.18 | Landesite | Mn2+3-xFe3+x(PO4)2(OH)x · (3-x)H2O | Orth. |
19.12.19 | Phosphoferrite | (Fe2+,Mn2+)3(PO4)2 · 3H2O | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.20 | Reddingite | (Mn2+,Fe2+)3(PO4)2 · 3H2O | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.21 | Earlshannonite | Mn2+Fe3+2(PO4)2(OH)2 · 4H2O | Mon. |
19.12.22 | Hureaulite | (Mn,Fe)5(PO4)2(HPO4)2 · 4H2O | Mon. 2/m : B2/b |
19.12.23 | Switzerite | (Mn,Fe)3(PO4)2 · 7H2O | Mon. |
19.12.24 | Laueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
19.12.25 | Pseudolaueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Mon. 2/m : P21/b |
19.12.26 | Strunzite | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. 1 : P1 |
19.12.27 | Stewartite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
19.12.28 | Alluaudite | (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3 | Mon. |
19.12.29 | Ferroalluaudite | (Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3 | |
19.12.30 | Fillowite | {Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36 | Trig. 3 : R3 |
19.12.31 | Johnsomervilleite | Na10Ca6Mg18Fe25(PO4)36 | Trig. |
19.12.32 | Wicksite | NaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O | Orth. mmm (2/m 2/m 2/m) |
19.12.33 | Dickinsonite-(KMnNa) | {KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2 | Mon. 2/m : B2/b |
19.12.34 | Sarcopside | (Fe2+,Mn2+,Mg)3(PO4)2 | Mon. 2/m : P21/b |
19.12.35 | Ludlamite | Fe2+3(PO4)2 · 4H2O | Mon. 2/m : P21/b |
19.12.36 | Graftonite | Fe2+Fe2+2(PO4)2 | Mon. 2/m : P21/b |
19.12.37 | Wilhelmvierlingite | CaMnFe3+(PO4)2(OH) · 2H2O | Orth. |
19.12.38 | Fairfieldite | Ca2(Mn2+,Fe2+)(PO4)2 · 2H2O | Tric. 1 : P1 |
19.12.39 | Beusite | Mn2+Mn2+2 (PO4)2 | Mon. |
19.12.40 | Messelite | Ca2(Fe2+,Mn2+)(PO4)2 · 2H2O | Tric. 1 : P1 |
19.12.41 | Jahnsite-(CaMnFe) | {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
19.12.42 | Jahnsite-(CaMnMn) | {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
19.12.43 | Jahnsite-(CaMnMg) | {Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
19.12.44 | Keckite | CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2O | Mon. 2/m : P2/b |
19.12.45 | Stanfieldite | Ca4Mg5(PO4)6 | Mon. |
19.12.46 | Laubmannite | (Fe2+,Mn2+,Ca)3Fe3+6(PO4)4(OH)12 | |
19.12.47 | Zodacite | Ca4Mn2+Fe3+4(PO4)6(OH)4 · 12H2O | Mon. |
19.12.48 | Hagendorfite | NaCaMn2+Fe2+2(PO4)3 | Mon. 2/m : B2/b |
19.12.49 | Maghagendorfite | (□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3 | Mon. |
19.12.50 | Varulite | NaCaMn2+Mn2+2(PO4)3 | Mon. 2/m : B2/b |
19.12.51 | Griphite | Na4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8 | Iso. m3 (2/m 3) |
19.12.52 | Attakolite | (Ca,Sr)Mn(Al,Fe)4(HPO4,PO4)3(SiO4,PO4)(OH)4 | Mon. 2/m : B2/m |
19.12.53 | Arrojadite-(KFe) | {KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2 | Mon. |
19.12.54 | Lun'okite | (Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O | Orth. mmm (2/m 2/m 2/m) : Pbca |
19.12.55 | Eosphorite | Mn2+Al(PO4)(OH)2 · H2O | Orth. mmm (2/m 2/m 2/m) : Cmca |
19.12.56 | Ernstite | (Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O | Mon. |
19.12.57 | Childrenite | Fe2+Al(PO4)(OH)2 · H2O | Orth. mm2 : Ccc2 |
19.12.58 | Bobfergusonite | Na2Mn5FeAl(PO4)6 | Mon. 2/m : P2/b |
19.12.59 | Qingheiite | NaMn3+Mg(Al,Fe3+)(PO4)3 | Mon. 2/m : P21/b |
19.12.60 | Whiteite-(CaFeMg) | {Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P21/b |
19.12.61 | Whiteite-(CaMnMg) | {Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m |
19.12.62 | Whiteite-(MnFeMg) | {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P21/b |
19.12.63 | Rittmannite | {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O | Mon. |
19.12.65 | Samuelsonite | (Ca,Ba)Ca8Fe2+2Mn2+2Al2(PO4)10(OH)2 | Mon. 2/m : B2/m |
Other Information
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 Zanazziite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Leavens, P.B., White, J.S. & Nelen, J.A. (1990): Zanazziite, a new mineral from Minas Gerais, Brazil. Mineralogical Record. 21: 413-417.
Mandarino J.A. (1997): New Minerals (1997) New Minerals 1990-1994.
Internet Links for Zanazziite
mindat.org URL:
https://www.mindat.org/min-4385.html
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External Links:
Mineral Dealers:
Localities for Zanazziite
Locality List




All localities listed without proper references should be considered as questionable.
Austria | |
| 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] |
| Pichler, A. (2009): Bergbau in Westkärnten, Eine Bestandsaufnahme der noch sichtbaren Merkmale der historischen Bergbaue in Westkärnten. Naturwissenschaftlicher Verein für Kärnten, Sonderheft 63, 1-416. |
Brazil | |
| Leon Hupperichs photo, ID: 103201 |
Sergio Varvello specimen & Photo, Photo ID: 460231 | |
| Sergio Varvello collection |
| |
Simone Citon specimen | |
Lithiotantite, Ideally LiTa3O8 - Luiz A.D.Menezes Filho, Hexiong Yang, Robert T. Downs, Mário L.S.C. Chaves, Aba C. Persiano - Acta Cryst. (2012) E68, i27 - i28 | |
https://www.shannonsminerals.com/shop/index.php/shannonsminerals/catalog/product/view/id/29449/s/zanazziite-xx-santa-maria-jenipapo-mg-brazil-ks/category/149/ | |
| Atencio, D., Coutinho, J. M., & Menezes Filho, L. A. (2005) Roscherite-Group Minerals. Axis Vol 1 No. 6. |
| Leavens, P.B., White, J.S. & Nelen, J.A. (1990): Zanazziite, a new mineral from Minas Gerais, Brazil. Mineralogical Record. 21: 413-417. |
Luiz Alberto Dias Menezes Filho, Mario Luiz de Sá Carneiro Chaves, Coralie Heinis Dias, Daniel Atencio (2016): Recent mineral discoveries in the Coronel Murta, Taquaral, and Medina pegmatite fields, northeastern Minas Gerais, Brazil. REM - Int. Eng. J. 69, 301-307. [http://www.scielo.br/pdf/remi/v69n3/2448-167X-remi-69-03-0301.pdf] | |
| Chukanov N V et al (2007) Guimarãesite, a new Zn-dominant monoclinic roscherite-group mineral from Itinga, Minas Gerais, Brazil, New Data on Minerals. Moscow, 42, 11-15 |
Luis Menezes | |
Confirmed | |
| Paulo Matioli, 2006, pers. com. to Sergio Varvello |
Atencio, D., Coutinho, J. M., & Menezes Filho, L. A. (2005) Roscherite-Group Minerals. Axis Vol 1 No. 6. | |
USA | |
| King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2. |
King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2, with updates by Van King | |
| www.uno.edu/pegmatology/abstract/abstniz.html. |
Ilha claim, Taquaral, Itinga, Minas Gerais, Brazil