Kraisslite Mineral Data (original) (raw)

General Kraisslite Information

Help on Chemical Formula: Chemical Formula:

(Mn++,Mg)24Zn3Fe+++(As+++O3)2(As+++++O4)3(SiO4)6(OH)18

Help on Composition: Composition:

Molecular Weight = 3,019.54 gm

Magnesium 1.53 % Mg 2.54 % MgO

Manganese 40.03 % Mn 51.68 % MnO

Zinc 6.93 % Zn 8.63 % ZnO

Iron 1.29 % Fe 1.85 % Fe2O3

Silicon 5.95 % Si 12.74 % SiO2

Arsenic 11.66 % As 6.55 % As2O3 / 10.28 % As2O5

Hydrogen 0.60 % H 5.37 % H2O

Oxygen 32.00 % O

______ ______

100.00 % 99.63 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Mn2+22Mg1.9Zn3.2Fe3+0.7(AsO3)2(AsO4)2.7(SiO4)6.4(OH)18

Help on Environment: Environment:

Secondary mineral in the zincite zone of a metamorphosed stratiform zinc deposit.

Help on IMA Status: IMA Status:

Approved IMA 1978

Help on Locality: Locality:

Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Frederick Kraissl, Jr. (1899-1986) and Alice L. Kraissl (1905-1986), of Hackensack, New Jersey.

Help on Name Pronunciation: Name Pronunciation:

Kraisslite + Pronunciation Say KRAISSLITE

Kraisslite Image

Click Here for Larger Kraisslite Image in a New Browser Window Images:

Kraisslite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:5.33819

Help on Cell Dimensions: Cell Dimensions:

a = 8.22, c = 43.88, Z = 2; V = 2,567.68 Den(Calc)= 3.91

Help on Crystal System: Crystal System:

Hexagonal - TrapezohedralH-M Symbol (6 2 2) Space Group: P 6322

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.74(1), 2.194(0.55), 2.437(0.55),

Physical Properties of Kraisslite

Help on Cleavage: Cleavage:

{0001} Perfect

Help on Color: Color:

Copper brown, Dark copper brown.

Help on Density: Density:

3.876

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Help on Habit: Habit:

Compact - Occurs as a compact mass.

Help on Habit: Habit:

Foliated - Two dimensional platy forms.

Help on Habit: Habit:

Scaly - Morphology like fish scales.

Help on Hardness: Hardness:

3-4 - Calcite-Fluorite

Help on Luster: Luster:

Sub Metallic

Help on Streak: Streak:

golden brown

Optical Properties of Kraisslite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2059,KPDmeas= 0.2077,KC= 0.2031
Ncalc = 1.79

Help on Optical Data: Optical Data:

Uniaxial (+), e=1.805.

Calculated Properties of Kraisslite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.71 gm/cc
note: Specific Gravity of Kraisslite =3.91 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0075795107
Boson Index = 0.9924204893

Help on Photoelectric: Photoelectric:

PEKraisslite = 22.53 barns/electron
U=PEKraisslite x rElectron Density= 83.62 barns/cc.

Help on Radioactivity: Radioactivity:

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

Kraisslite Classification

Help on Dana Class: Dana Class:

43.04.10.01 (43)Compound Phosphates, etc.

(43.04)(Anhydrous Compound Anions With Hydroxyl or Halogen)

(43.04.10)Kraisslite Group

43.04.10.01 Kraisslite (Mn,Mg)24Zn3Fe(AsO3)2(AsO4)3(SiO4)6(OH)18 P 6322 6 2 2

43.04.10.02 Ekatite! (Fe,Fe,Zn)12(OH)6[AsO3]6[AsO3,HOSiO3]2 P 63mc 6mm

Help on Strunz Class: Strunz Class:

08.BE.45 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BE -With only medium-sized cations, (OH, etc.):RO4 > 2:1

08.BE.45 Dixenite CuMn14Fe(AsO3)5(SiO4)2(AsO4)(OH)6 R 3 3

08.BE.45 Hematolite (Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23 R 3 3

08.BE.45 Kraisslite (Mn,Mg)24Zn3Fe(AsO3)2(AsO4)3(SiO4)6(OH)18 P 6322 6 2 2

08.BE.45 Mcgovernite Mn9Mg4Zn2As2Si2O17(OH)14 R 3c 3 2/m

08.BE.45 Turtmannite! (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20x R 3c 3 2/m

08.BE.45 Arakiite! (Zn,Mn)(Mn,Mg)12(Fe,Al)2(AsO3)(AsO4)2(OH)23 Cc m

Other Kraisslite Information

Help on References: References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Kraisslite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

Search for Kraisslite using:

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

Visit our Advertisers for Kraisslite :

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

Ask about Kraisslite 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 Espa�ol

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

Kraisslite

(Mn++,Mg)24Zn3Fe+++(As+++O3)2(As+++++O4)3(SiO4)6(OH)18
Dana No: 43.04.10.01 Strunz No: 08.BE.45
Locality:

Notes: