Natronambulite Mineral Data

Advertisment

Adamsminerals.com- Online mineral store front for mineral collectors

Your premier supplier of quality mineral specimens from Southern Africa and the world at large

For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an

John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.

General Natronambulite Information

Chemical Formula:

(Na,Li)Mn++4[Si5O14(OH)]

Composition:

Molecular Weight = 619.35 gm

Sodium 2.60 % Na 3.50 % Na₂O

Lithium 0.34 % Li 0.72 % Li₂O

Manganese 35.48 % Mn 45.81 % MnO

Silicon 22.67 % Si 48.51 % SiO₂

Hydrogen 0.16 % H 1.45 % H₂O

Oxygen 38.75 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Li_0.3Na_0.7Mn²⁺₄Si₅O₁₄(OH)

Environment:

Found in the mine dump.

IMA Status:

Approved IMA 1985

Locality:

Matsumaezawa ore body, Tahohata mine, Ivate Prefecture, Japan. Link to MinDat.org Location Data.

Name Origin:

Named for its composition and for Matsuo Nambu (1917-), mineralogist, Tohoko University, Japan.

Name Pronunciation:

Natronambulite + Pronunciation

Synonym:

ICSD 855

PDF 39-332

Natronambulite Image

Images:

Natronambulite

Comments: Thin section image of natronamulite (Nn) in assocation with aegirine (Ac), arfvedsonite (Am) and quartz (Q). (JMPS, v12:332).
Location: Tanohata mine, Iwate Prefecture, Japan. Scale: Picture Size 1.9 x 1.5 mm.
© Mineralogical Journal

Natronambulite Crystallography

Axial Ratios:

a:b:c =0.6478:1:0.5727

Cell Dimensions:

a = 7.62, b = 11.762, c = 6.737, Z = 2; alpha = 92.81°, beta = 94.55°, gamma = 106.87° V = 575.32 Den(Calc)= 3.58

Crystal System:

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

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

By Intensity(I/I_o): 3.559(1), 7.13(0.47), 3.078(0.45),

Physical Properties of Natronambulite

Cleavage:

{100} Perfect, {001} Perfect

Color:

Pink orange.

Density:

3.51

Diaphaneity:

Transparent to Translucent

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luster:

Vitreous (Glassy)

Streak:

very pale orange

Optical Properties of Natronambulite

Gladstone-Dale:

CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1998,KPDmeas= 0.2038,KC= 0.205
Ncalc = 1.72 - 1.73

Optical Data:

Biaxial (+), a=1.706, b=1.71, g=1.73, bire=0.0240, 2V(Calc)=50, 2V(Meas)=45.

Calculated Properties of Natronambulite

Electron Density:

Bulk Density (Electron Density)=3.40 gm/cc
note: Specific Gravity of Natronambulite =3.51 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Natronambulite}= 9.99 barns/electron
U=PE_{Natronambulite} x rElectron Density= 33.92 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Natronambulite is Not Radioactive

Natronambulite Classification

Dana Class:

65.04.01.05 (65)Inosilicate Single-Width Unbranched Chains, W=1

(65.04)with chains P=5

(65.04.01)Rhodonite group

65.04.01.01 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1

65.04.01.02 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1

65.04.01.03 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1

65.04.01.04 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1

65.04.01.05 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1

65.04.01.06 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri

65.04.01.07 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1

65.04.01.08 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1

Strunz Class:

09.DK.05 09 - SILICATES (Germanates)

09.D - Inosilicates* Structural terminology according to Liebau (1985)

09.DK -Inosilicates with 5-periodic single chains

09.DK.05 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1

09.DK.05 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri

09.DK.05 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1

09.DK.05 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1

09.DK.05 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1

09.DK.05 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1

09.DK.05 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1

09.DK.05 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1

Other Natronambulite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Natronambulite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Natronambulite using:

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

Visit our Advertisers for Natronambulite :

A Bijoux Google Search for Natronambulite
Adam's Minerals Google Search for Natronambulite
Cape Minerals Google Search for Natronambulite
Dakota Matrix Minerals Google Search for Natronambulite
Excalibur Mineral Corp. Google Search for Natronambulite
Exceptional Minerals Google Search for Natronambulite
John Betts Fine Minerals Search for Natronambulite
McDougall Minerals Google Search for Natronambulite
Mineral News Website Link
Rock and Mineral Shows Google Search for Natronambulite
Weinrich Minerals, Inc. Google Search for Natronambulite

Ask about Natronambulite 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 Natronambulite Specimen Label here :

Natronambulite

(Na,Li)Mn++4[Si5O14(OH)]
Dana No: 65.04.01.05 Strunz No: 09.DK.05
Locality:

Notes: