Akhtenskite Mineral Data

General Akhtenskite Information

Chemical Formula:

Mn++++O2

Composition:

Molecular Weight = 86.94 gm

Manganese 63.19 % Mn 100.00 % MnO₂

Oxygen 36.81 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn⁴⁺O₂

Environment:

In mixtures in "psilomelane" with other manganese oxides in an iron oxide deposit, probably bacterially altered from a previous mineral (Akhtensk deposit, Russia); in incrustations of ferromanganese minerals on oceanic

IMA Status:

Approved IMA 1979

Locality:

In the Akhtensk brown ironstone deposit, Southern Ural Mountains, on Mt. Zarod, Sikhote-Alin Mountains, Primorskiy Kray, Russia. Link to MinDat.org Location Data.

Name Origin:

For the Akhtensk deposit, Russia, where it was first noted.

Name Pronunciation:

Akhtenskite + Pronunciation

Synonym:

ICSD 76430

PDF 30-820

Akhtenskite Image

Images:

Akhtenskite

Comments: Dark gray grains of akhtenskite with brown superficial coating.
Location: Akhtenskoye Deposit, Chelyabinsk District, Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Physical Properties of Akhtenskite

Color:

Gray, Black.

Optical Properties of Akhtenskite

Optical Data:

NCalc= 2.8 - from Gladstone-Dale relationship (KC = 0.394) where Ncalc=Dcalc*KC+1
NCalc= 2.58 - from Gladstone-Dale relationship (KC = 0.394) where Ncalc=Dmeas*KC+1

Calculated Properties of Akhtenskite

Electron Density:

Bulk Density (Electron Density)=4.32 gm/cc
note: Specific Gravity of Akhtenskite =4.58 gm/cc.

Fermion Index:

Fermion Index = 0.0001766733
Boson Index = 0.9998233267

Photoelectric:

PE_Akhtenskite= 16.61 barns/electron
U=PE_Akhtenskite x rElectron Density= 71.73 barns/cc.

Radioactivity:

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

Akhtenskite Classification

Dana Class:

04.04.10.01 (04)Simple Oxides

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

(04.04.10)Dana Group

04.04.10.01 Akhtenskite MnO2 P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

04.DB.15b 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.15b Akhtenskite MnO2 P 6₃/mmc 6/m 2/m 2/m

Other Akhtenskite Information

See Also:

Links to other databases for Akhtenskite :
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 Akhtenskite Specimen Label here :

Akhtenskite

Mn++++O2
Dana No: 04.04.10.01 Strunz No: 04.DB.15b
Locality:

Notes: