Manganotychite Mineral Data

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

IMA Status:

Approved IMA 1990

Locality:

Link to MinDat.org Location Data.

Synonym:

IMA1989-039

Manganotychite Image

Images:

Click Here for Larger Manganotychite Image

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 - DiploidalH-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

Diaphaniety:

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

Optical Data:

Isotropic, n=1.544.

Calculated Properties of Manganotychite

Electron Density:

r_electron=2.73 gm/cc
note: r_{Manganotychite}=2.80 gm/cc.

Fermion Index

Fermion Index = 0.00361
Boson Index = 0.99639

Photoelectric:

PE_{Manganotychite}= 5.45 barns/electron
U=PE_{Manganotychite} x r_electron= 14.88 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Manganotychite is Not Radioactive

Manganotychite Classification

Dana Class:

17.1.1.3 (17)Compound Carbonates

(17.1)with miscellaneous formulae

(17.1.1)Dana Group

17.1.1.1 Tychite Na6Mg2(CO3)4(SO4) F d3 2/m 3

17.1.1.2 Ferrotychite Na6Fe2(SO4)(CO3)4 F d3 2/m 3

17.1.1.3 Manganotychite Na6(Mn,Fe,Mg)2(SO4)(CO3)4 F d3 2/m 3

Strunz Class:

V/C.03-25 V - Nitrates, Carbonates and Borates

V/C - Waterfree carbonates with unfamiliar anions

V/C.03 - Northupite - Ferrotychite series

V/C.03-10 Northupite Na3Mg(CO3)2Cl F d3 2/m 3

V/C.03-20 Tychite Na6Mg2(CO3)4(SO4) F d3 2/m 3

V/C.03-25 Manganotychite Na6(Mn,Fe,Mg)2(SO4)(CO3)4 F d3 2/m 3

V/C.03-30 Ferrotychite Na6Fe2(SO4)(CO3)4 F d3 2/m 3

Other Manganotychite Information

References:

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 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

Search for Manganotychite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Manganotychite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Manganotychite Mineral Data :

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: 17.1.1.3 Strunz No: V/C.03-25
Locality:

Notes: