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

Search for Akhtenskite using:

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

Visit our Advertisers for Akhtenskite :

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

Ask about Akhtenskite 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 Akhtenskite Specimen Label here :

Akhtenskite

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

Notes: