Nsutite Mineral Data

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.

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:

HexagonalSpace 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

Diaphaniety:

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

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:

r_electron=4.61 gm/cc
note: r_Nsutite=4.87 gm/cc.

Fermion Index

Fermion Index = 0.00017
Boson Index = 0.99983

Photoelectric:

PE_Nsutite= 16.48 barns/electron
U=PE_Nsutite x r_electron= 76.01 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nsutite is Not Radioactive

Nsutite Classification

Dana Class:

4.4.8.1 (4)Simple Oxides

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

(4.4.8)Dana Group

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

Strunz Class:

IV/D.10-20 IV - Oxides

IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds)

IV/D.10 - Ramsdellite - Vernadite series

IV/D.10-10 Ramsdellite MnO2 Pbnm 2/m 2/m 2/m

IV/D.10-15 Akhtenskite MnO2 P 6₃/mmc 6/m 2/m 2/m

IV/D.10-20 Nsutite (Mn1-x)(Mnx)(O2-2x)(OH2x)wherex=0.06-0.07 Unk Hex

IV/D.10-30 Vernadite (Mn,Fe,Ca,Na)(O,OH)2·n(H2O) I 4/m 4/m

Other Nsutite Information

References:

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

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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: 4.4.8.1 Strunz No: IV/D.10-20
Locality:

Notes: