Manganberzeliite Mineral Data

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

Environment:

Metamorphosed manganiferous skarns. Forms a series with berzeliite.

IMA Status:

Valid Species (Pre-IMA) 1894

Locality:

Langban, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for the manganese dominant analogue of berzeliite.

Name Pronunciation:

Manganberzeliite + Pronunciation

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 - Hexoctahedral H-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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Forms: ( 0 1 2) ( 1 2 1) ( 0 1 1) ( 1 0 0)

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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

Diaphaneity:

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
Ncalc = 1.76 - 1.81

Optical Data:

Isotropic, n=1.78-1.79.

Calculated Properties of Manganberzeliite

Electron Density:

Bulk Density (Electron Density)=4.09 gm/cc
note: Specific Gravity of Manganberzeliite =4.34 gm/cc.

Fermion Index:

Fermion Index = 0.0023097828
Boson Index = 0.9976902172

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Manganberzeliite is Not Radioactive

Manganberzeliite Classification

Dana Class:

38.02.01.02 (38)Anhydrous Phosphates, etc

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

(38.02.01)Berzeliite Group

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

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

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

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

Strunz Class:

08.AC.25 08 - PHOSPHATES, ARSENATES, VANADATES

08.A - Phosphates, etc. without additional anions, without H2O

08.AC -With medium-sized and large cations

08.AC.25 Berzeliite (Ca,Na)3(Mg,Mn)2(AsO4)3 I a3d 4/m 3 2/m

08.AC.25 Palenzonaite (Ca,Na)3Mn(V,As,Si)3O12 I a3d 4/m 3 2/m

08.AC.25 Manganberzeliite (Ca,Na)3(Mn,Mg)2(AsO4)3 I a3d 4/m 3 2/m

08.AC.25 Schaferite! NaCa2Mg2(VO4)3 I a3d 4/m 3 2/m

Other Manganberzeliite Information

References:

NAME( AntBidBlaNic5) 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 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Print or Cut-and-Paste your Manganberzeliite Specimen Label here :

Manganberzeliite

(Ca,Na)3(Mn,Mg)2(AsO4)3
Dana No: 38.02.01.02 Strunz No: 08.AC.25
Locality:

Notes:

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