Manganberzeliite Mineral Data

Manganberzeliite Mineral Data +

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General Manganberzeliite Information

Chemical Formula:

(Ca,Na)3(Mn,Mg)2(AsO4)3

Composition:

Molecular Weight = 618.74 gm

Sodium 2.79 % Na 3.76 % Na₂O

Calcium 14.57 % Ca 20.39 % CaO

Magnesium 1.96 % Mg 3.26 % MgO

Manganese 13.32 % Mn 17.20 % MnO

Arsenic 36.33 % As 55.72 % As₂O₅

Oxygen 31.03 % O

______ ______

100.00 % 100.32 % = TOTAL OXIDE

Empirical Formula:

Ca_2.25Na_0.75Mn²⁺_1.5Mg_0.5(AsO₄)₃

IMA Status:

Valid Species (Pre-IMA) 1894

Locality:

Link to MinDat.org Location Data.

Manganberzeliite Image

Images:

Manganberzeliite

Comments: Orange translucent crystalline manganberzeliite in clear calcite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Manganberzeliite Crystallography

Cell Dimensions:

a = 12.52, Z = 8; V = 1,962.52 Den(Calc)= 4.19

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I a3d

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.8(1), 2.56(0.9), 1.67(0.8),

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Physical Properties of Manganberzeliite

Cleavage:

None

Color:

Grayish yellow, Yellowish red, Honey yellow, Orange.

Density:

4.21 - 4.46, Average = 4.33

Diaphaniety:

Transparent to Translucent

Fracture:

Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.

Hardness:

4.5-5 - Near Apatite

Luster:

Resinous

Streak:

white

Optical Properties of Manganberzeliite

Gladstone-Dale:

CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.037 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1874,KPDmeas= 0.1811,KC= 0.1806

Optical Data:

Isotropic, n=1.78-1.79.

Calculated Properties of Manganberzeliite

Electron Density:

r_electron=4.09 gm/cc
note: r_{Manganberzeliite}=4.34 gm/cc.

Fermion Index

Fermion Index = 0.0023
Boson Index = 0.9977

Photoelectric:

PE_{Manganberzeliite}= 30.39 barns/electron
U=PE_{Manganberzeliite} x r_electron= 124.26 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Manganberzeliite is Not Radioactive

Manganberzeliite Classification

Dana Class:

38.2.1.2 (38)Anhydrous Phosphates, etc

(38.2)(A+ B++)5 (XO4)3

(38.2.1)Dana Group

38.2.1.1 Berzeliite (Ca,Na)3(Mg,Mn)2(AsO4)3 I a3d 4/m 3 2/m

38.2.1.2 Manganberzeliite (Ca,Na)3(Mn,Mg)2(AsO4)3 I a3d 4/m 3 2/m

38.2.1.3 Palenzonaite (Ca,Na)3Mn(V,As,Si)3O12 I a3d 4/m 3 2/m

38.2.1.4 Schaferite! NaCa2Mg2(VO4)3 I a3d 4/m 3 2/m

Strunz Class:

VII/A.08-40 VII - Phosphates, Arsenates and Vanadates

VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of medium and big size: Mg, Mn,Fe, Cu, Zn, and Ca, Na

VII/A.08 - Chladniite - Berzeliite - Palenzonaite series

VII/A.08-03 Galileiite! NaFe4(PO4)3 R 3 3

VII/A.08-05 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3

VII/A.08-10 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3

VII/A.08-20 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3

VII/A.08-30 Berzeliite (Ca,Na)3(Mg,Mn)2(AsO4)3 I a3d 4/m 3 2/m

VII/A.08-40 Manganberzeliite (Ca,Na)3(Mn,Mg)2(AsO4)3 I a3d 4/m 3 2/m

VII/A.08-45 Schaferite! NaCa2Mg2(VO4)3 I a3d 4/m 3 2/m

VII/A.08-50 Palenzonaite (Ca,Na)3Mn(V,As,Si)3O12 I a3d 4/m 3 2/m

Other Manganberzeliite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Manganberzeliite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 - Franklin Minerals(Dunn) 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Manganberzeliite

(Ca,Na)3(Mn,Mg)2(AsO4)3
Dana No: 38.2.1.2 Strunz No: VII/A.08-40
Locality:

Notes: