Manganotychite Mineral Data
General Manganotychite Information
Chemical Formula:
Na6(Mn++,Fe++,Mg)2(SO4)(CO3)4
Composition:
Molecular Weight = 578.33 gm
Sodium 23.85 % Na 32.15 % Na2 O
Magnesium 0.84 % Mg 1.39 % MgO
Manganese 11.40 % Mn 14.72 % MnO
Iron 5.79 % Fe 7.45 % FeO
Carbon 8.31 % C 30.44 % CO2
Sulfur 5.54 % S 13.84 % SO3
Oxygen 44.26 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Na6 Mn2+ 1.2 Fe2+ 0.6 Mg0.2 (SO4 )(CO3 )4
Environment:
Formed in pegmatite veins in a differentiated alkalic massif.
IMA Status:
Approved IMA 1990
Locality:
Mt. Alluaiv, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Name Origin:
Named as the manganese analog of tychite.
Synonym:
IMA1989-039
Manganotychite Image
Images:
Manganotychite Crystallography
Cell Dimensions:
a = 13.9951, Z = 8; V = 2,741.12 Den(Calc)= 2.80
Crystal System:
Isometric - Diploidal H-M Symbol (2/m 3 ) Space Group: F d3
X Ray Diffraction:
By Intensity(I/Io ): 2.695(1), 4.22(0.76), 2.474(0.7),
Physical Properties of Manganotychite
Cleavage:
None
Color:
Brown, White, Pink.
Density:
2.7
Diaphaneity:
Transparent
Hardness:
4 - Fluorite
Luster:
Vitreous - Dull
Streak:
white
Optical Properties of Manganotychite
Gladstone-Dale:
CI meas = -0.03 (Excellent) - where the CI = (1-KPDmeas /KC ) CI calc = 0.007 (Superior) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.1943,KPDmeas = 0.2015,KC = 0.1956 Ncalc = 1.53 - 1.55
Optical Data:
Isotropic, n=1.544.
Calculated Properties of Manganotychite
Electron Density:
Bulk Density (Electron Density)=2.73 gm/cc note: Specific Gravity of Manganotychite =2.80 gm/cc.
Fermion Index:
Fermion Index = 0.0036109388 Boson Index = 0.9963890612
Photoelectric:
PEManganotychite = 5.45 barns/electronU=PEManganotychite x r Electron Density= 14.88 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Manganotychite is Not Radioactive
Manganotychite Classification
Dana Class:
17.01.01.03 (17) Compound Carbonates
(17.01) with miscellaneous formulae
(17.01.01) Tychite Group
17.01.01.01 Tychite Na6Mg2(CO3)4(SO4) F d3 2/m 3
17.01.01.02 Ferrotychite Na6Fe2(SO4)(CO3)4 F d3 2/m 3
17.01.01.03 Manganotychite Na6(Mn,Fe,Mg)2(SO4)(CO3)4 F d3 2/m 3
Strunz Class:
05.BF.05 05 - CARBONATES (NITRATES)
05.B - Carbonates with additional anions, without H2O
05.BF -With (Cl), SO4, PO4, TeO3
05.BF.05 Ferrotychite Na6Fe2(SO4)(CO3)4 F d3 2/m 3
05.BF.05 Manganotychite Na6(Mn,Fe,Mg)2(SO4)(CO3)4 F d3 2/m 3
05.BF.05 Northupite Na3Mg(CO3)2Cl F d3 2/m 3
05.BF.05 Tychite Na6Mg2(CO3)4(SO4) F d3 2/m 3
Other Manganotychite Information
References:
NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.77,p448,1992) OPTIC PROP.(Am.Min.,Vol.77,p448,1992)
See Also:
Links to other databases for Manganotychite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST
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Print or Cut-and-Paste your Manganotychite Specimen Label here :
Manganotychite
Na6(Mn++,Fe++,Mg)2(SO4)(CO3)4
Dana No: 17.01.01.03 Strunz No: 05.BF.05
Locality:
Notes:
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