Nsutite Mineral Data

General Nsutite Information

Chemical Formula:

(Mn++++1-x)(Mn++x)(O2-2x)(OH2x) where x = 0.06-0.07

Composition:

Molecular Weight = 87.24 gm

Manganese 62.97 % Mn 12.20 % MnO / 84.71 % MnO₂

Hydrogen 0.35 % H 3.10 % H₂O

Oxygen 36.68 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn⁴⁺_0.85O_1.7Mn²⁺_0.15(OH)_0.3

Environment:

Oxidation of manganese carbonate minerals. Found in most major manganese deposits.

IMA Status:

Approved IMA 1962

Locality:

Nsuta, Ghana. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Nsutite

Synonym:

Wad

Nsutite Image

Images:

Nsutite

Comments: Dark gray to black sub-metallic to dull massive nsutite.
Location: Nsuta, Western Province, Ghana. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Nsutite Crystallography

Axial Ratios:

a:c = 1:0.45906

Cell Dimensions:

a = 9.65, c = 4.43, Z = 12; V = 357.26 Den(Calc)= 4.87

Crystal System:

Hexagonal Space Group: Unk

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

By Intensity(I/I_o): 1.635(1), 4(0.98), 2.33(0.69),

Physical Properties of Nsutite

Color:

Grayish black, Dark gray, Black.

Density:

4.24 - 4.67, Average = 4.45

Diaphaneity:

Opaque

Habit:

Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

6.5-8.5

Luster:

Earthy (Dull)

Streak:

black

Optical Properties of Nsutite

Optical Data:

NCalc= 2.79 - from Gladstone-Dale relationship (KC = 0.3683) where Ncalc=Dcalc*KC+1
NCalc= 2.64 - from Gladstone-Dale relationship (KC = 0.3683) where Ncalc=Dmeas*KC+1

RL Anisotrophism:

Distinct, light to dark gray.

RL Bireflectance:

Grayish white with a creamy tint to bluish gray-wh.

RL Color:

White with a slightly creamy tint.

Calculated Properties of Nsutite

Electron Density:

Bulk Density (Electron Density)=4.61 gm/cc
note: Specific Gravity of Nsutite =4.87 gm/cc.

Fermion Index:

Fermion Index = 0.0001765809
Boson Index = 0.9998234191

Photoelectric:

PE_Nsutite= 16.48 barns/electron
U=PE_Nsutite x rElectron Density= 76.01 barns/cc.

Radioactivity:

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

Nsutite Classification

Dana Class:

04.04.08.01 (04)Simple Oxides

(04.04)with a cation charge of 4+ (A++++ O2)

(04.04.08)Dana Group

04.04.08.01 Nsutite (Mn1-x)(Mnx)(O2-2x)(OH2x)wherex=0.06-0.07 Unk Hex

Strunz Class:

04.DB.15c 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DB -With medium-sized cations; chains of edge-sharing octahedra

04.DB.15c Nsutite (Mn1-x)(Mnx)(O2-2x)(OH2x)wherex=0.06-0.07 Unk Hex

Other Nsutite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)

See Also:

Links to other databases for Nsutite :
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

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Print or Cut-and-Paste your Nsutite Specimen Label here :

Nsutite

(Mn++++1-x)(Mn++x)(O2-2x)(OH2x) where x = 0.06-0.07
Dana No: 04.04.08.01 Strunz No: 04.DB.15c
Locality:

Notes:

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