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 % Na2 O
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 % As2 O5
Oxygen 31.03 % O
______ ______
100.00 % 100.32 % = TOTAL OXIDE
Empirical Formula:
Ca2.25 Na0.75 Mn2+ 1.5 Mg0.5 (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
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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
X Ray Diffraction:
By Intensity(I/Io ): 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
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:
PEManganberzeliite = 30.39 barns/electronU=PEManganberzeliite x r Electron 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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Manganberzeliite
(Ca,Na)3(Mn,Mg)2(AsO4)3
Dana No: 38.02.01.02 Strunz No: 08.AC.25
Locality:
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