Mineralogy Database

Arsenoclasite Mineral Data

Search Webmineral :

General Arsenoclasite Information

Help on Chemical  Formula: Chemical Formula: Mn5(AsO4)2(OH)4
Help on Composition: Composition: Molecular Weight = 620.56 gm
   Manganese  44.27 %  Mn   57.16 % MnO
   Arsenic    24.15 %  As   37.04 % As2O5
   Hydrogen    0.65 %  H     5.81 % H2O
   Oxygen     30.94 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+5(AsO4)2(OH)4
Help on Environment: Environment: A rare fissure mineral in a metamorphosed Fe-Mn orebody (Langban, Sweden); in a sedimentary Fe-Mn deposit (Iron Monarch quarry, Australia).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1931
Help on Locality: Locality: At Langban, Varmland, Sweden. Crystallized from the Iron Monarch quarry, Iron Knob, South Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from "arsenic" and the Greek for "breaking," for its excellent cleavage.
Help on Name Pronunciation: Name Pronunciation: Arsenoclasite + Pronunciation Say ARSENOCLASITE
Help on Synonym: Synonym: ICSD 15210
  PDF 20-704

Arsenoclasite Crystallography

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.933(1), 2.739(0.75), 4.55(0.7),

Physical Properties of Arsenoclasite

Help on Color: Color: Orange brown, Red.

Optical Properties of Arsenoclasite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1967,KPDmeas= 0.1933,KC= 0.1923
Ncalc = 1.79 - 1.8

Calculated Properties of Arsenoclasite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.90 gm/cc
note: Specific Gravity of Arsenoclasite =4.16 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001494805
Boson Index = 0.9998505195
Help on Photoelectric: Photoelectric: PEArsenoclasite = 28.33 barns/electron
U=PEArsenoclasite x rElectron Density= 110.52 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Arsenoclasite is Not Radioactive

Arsenoclasite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.04)where (A B)5 (XO4)2 Zq
  (41.04.01)Dana Group Arsenoclasite Mn5(AsO4)2(OH)4 P 212121 2 2 2 Gatehouseite Mn5(PO4)2(OH)4 P 212121 2 2 2
Help on  Strunz Class: Strunz Class: 08.BD.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BD -With only medium-sized cations, (OH, etc.):RO4 = 2:1
08.BD.10 Arsenoclasite Mn5(AsO4)2(OH)4 P 212121 2 2 2
08.BD.10 Gatehouseite Mn5(PO4)2(OH)4 P 212121 2 2 2

Other Arsenoclasite Information

Help on See Also: See Also: Links to other databases for Arsenoclasite :
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 Arsenoclasite using:

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

Visit our Advertisers for Arsenoclasite :

Dakota Matrix Google Search for Arsenoclasite
Excalibur Minerals Google Search for Arsenoclasite
Exceptional Minerals Google Search for Arsenoclasite
Hudson Insitute Google Search for Arsenoclasite
John Betts Fine Minerals Search for Arsenoclasite
Mc Dougall Minerals Google Search for Arsenoclasite
Mineral News Website Link
Rock and Mineral Shows Website Link
Weinrich Minerals, Inc. Google Search for Arsenoclasite

Ask about Arsenoclasite 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 Espaņol

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


Dana No: Strunz No: 08.BD.10