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 % Na₂O

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:

Na₆Mn²⁺_1.2Fe²⁺_0.6Mg_0.2(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 Aegirine

Comments: Pale rose-tan granular manganotychite with black aegirine prism.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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

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

By Intensity(I/I_o): 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:

PE_{Manganotychite}= 5.45 barns/electron
U=PE_{Manganotychite} x rElectron 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

Search for Manganotychite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Manganotychite :

Ask about Manganotychite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.