Kraisslite Mineral Data

[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions]
Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows

General Kraisslite Information

Chemical Formula:

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

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

Empirical Formula:

Mn²⁺₂₂Mg_1.9Zn_3.2Fe³⁺_0.7(AsO₃)₂(AsO₄)_2.7(SiO₄)_6.4(OH)₁₈

Environment:

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

IMA Status:

Approved IMA 1978

Locality:

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

Name Origin:

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

Name Pronunciation:

Kraisslite + Pronunciation

Kraisslite Image

Images:

Kraisslite

Comments: Yellow crystalline kraisslite in calcite.
Location: Sterling Mine, Ogdensburg, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kraisslite Crystallography

Axial Ratios:

a:c = 1:5.33819

Cell Dimensions:

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

Crystal System:

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

$Help on X Ray Diffraction:$ X Ray Diffraction:

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

Physical Properties of Kraisslite

Cleavage:

{0001} Perfect

Color:

Copper brown, Dark copper brown.

Density:

3.876

Diaphaneity:

Translucent

Fracture:

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

Habit:

Compact - Occurs as a compact mass.

Habit:

Foliated - Two dimensional platy forms.

Habit:

Scaly - Morphology like fish scales.

Hardness:

3-4 - Calcite-Fluorite

Luster:

Sub Metallic

Streak:

golden brown

Optical Properties of Kraisslite

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

Optical Data:

Uniaxial (+), e=1.805.

Calculated Properties of Kraisslite

Electron Density:

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

Fermion Index:

Fermion Index = 0.0075795107
Boson Index = 0.9924204893

Photoelectric:

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

Radioactivity:

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

Kraisslite Classification

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

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

References:

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

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 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - MinMax(Deutsch)
12 - MinMax(English)
13 - Mineralienatlas (Deutsch)
14 - QUT Mineral Atlas
15 - Ruff.Info

Search for Kraisslite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Kraisslite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Kraisslite Mineral Data :

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 Español

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: