Manaksite Mineral Data

Manaksite Mineral Data +

[Mineral Specimens] [Our best] [Rare specimens] [Latest updates] [Home Page]
Fine Minerals, Moldavites, Jewellery, Meteorites and Fossils
Rockshop.cz is based in Prague, Czech republic

General Manaksite Information

Chemical Formula:

KNaMn++Si4O10

Composition:

Molecular Weight = 389.36 gm

Potassium 10.04 % K 12.10 % K₂O

Sodium 5.90 % Na 7.96 % Na₂O

Manganese 14.11 % Mn 18.22 % MnO

Silicon 28.85 % Si 61.73 % SiO₂

Oxygen 41.09 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

KNaMn²⁺Si₄O₁₀

IMA Status:

Approved IMA 1992

Locality:

Link to MinDat.org Location Data.

Synonym:

IMA1990-024

Search for Manaksite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Manaksite Crystallography

Axial Ratios:

a:b:c =0.8508:1:1.2175

Cell Dimensions:

a = 6.993, b = 8.219, c = 10.007, Z = 2; alpha = 105.11°, beta = 100.76°, gamma = 114.79° V = 495.24 Den(Calc)= 2.61

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 3.45(1), 3.26(0.9), 3.05(0.8),

Physical Properties of Manaksite

Cleavage:

[001] Perfect, [010] Perfect

Color:

Colorless, Creamy white, Rosy.

Density:

2.73

Diaphaniety:

Transparent to Translucent

Hardness:

5 - Apatite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Manaksite

Gladstone-Dale:

CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.036 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2105,KPDmeas= 0.2012,KC= 0.2031

Optical Data:

Biaxial (-), a=1.54, b=1.551, g=1.557, bire=0.0170

Calculated Properties of Manaksite

Electron Density:

r_electron=2.68 gm/cc
note: r_Manaksite=2.73 gm/cc.

Fermion Index

Fermion Index = 0.01368
Boson Index = 0.98632

Photoelectric:

PE_Manaksite= 5.77 barns/electron
U=PE_Manaksite x r_electron= 15.46 barns/cc.

Radioactivity:

GRapi = 142.16 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Manaksite - barely detectable

Manaksite Classification

Dana Class:

70.1.1.3 (70)Inosilicate Column or Tube Structures

(70.1)with columnar silicate units

(70.1.1)Dana Group

70.1.1.1 Litidionite KNaCuSi4O10 P1 1

70.1.1.2 Fenaksite (K,Na,Ca)4(Fe,Fe,Mn)2Si8O20(OH,F) P1 1

70.1.1.3 Manaksite KNaMnSi4O10 P1 1

70.1.1.4 Agrellite NaCa2Si4O10F P1 1

Strunz Class:

VIII/H.04-20 VIII - Silicates

VIII/H - Phyllosilicates (layered), Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others

VIII/H.04 - Fenaksite series

VIII/H.04-10 Fenaksite (K,Na,Ca)4(Fe,Fe,Mn)2Si8O20(OH,F) P1 1

VIII/H.04-20 Manaksite KNaMnSi4O10 P1 1

VIII/H.04-30 Ershovite Na4K3(Fe,Mn,Ti)2Si8O20(OH)4·5(H2O) P1 1

Other Manaksite Information

References:

PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)

Search for Manaksite using:

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

Visit our Advertisers for Manaksite :
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 Manaksite Mineral Data :

Ask about Manaksite 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 Manaksite Specimen Label here :

Manaksite

KNaMn++Si4O10
Dana No: 70.1.1.3 Strunz No: VIII/H.04-20
Locality:

Notes: