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Kraisslite

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Alice and Fred Kraissl
Formula:
Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16
The Zn is tetrahedrally coordinated. The mineral was formerly thought to have the formula (Mn2+,Mg)24Zn4(SiO4)8(AsO4)4(OH)12.
Colour:
Pale red-brown, deep coppery brown
Lustre:
Pearly
Hardness:
3 - 4
Specific Gravity:
3.876
Crystal System:
Orthorhombic
Name:
Named after Frederick and Alice Kraissl, North Hackensack, New Jersey, avid collectors of Franklin, NJ, minerals, former officers of the Franklin-Ogdensburg Mineralogical Society and generous benefactors to the Franklin Mineral Museum. Frederick Kraissl, Jr. [July 8, 1899 New York, New York, USA - November 30, 1986 River Edge, New jersey, USA] was the son of a Croatian immigrant. He earned his masters degree in chemical engineering at Columbia University, New York in 1922 and his PhD, also from Columbia, for his thesis on "The Mechanics of Colors in Gems and Minerals." He was a Practicing Engineer (PE), specializing in the manufacture of glass. Alice Louise Plenty Kraissl [May 5, 1905 - September 16, 1986 River Edge, New Jersey, USA], earned a bachelors degree in engineering from Barnard College in 1925, and co-founded the family business, Kraissl Associates, with her husband. She was an avid micro-mounter as well.
This page provides mineralogical data about Kraisslite.


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Classification of KraissliteHide

Approved
Approval Year:
1977
8.BE.45

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1
43.4.10.1

43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
17.7.11

17 : Silicates Containing other Anions
7 : Silicates with vanadate, arsenate or antimonate

Physical Properties of KraissliteHide

Pearly
Colour:
Pale red-brown, deep coppery brown
Streak:
golden brown
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{0001}
Density:
3.876 g/cm3 (Measured)    3.903 g/cm3 (Calculated)

Optical Data of KraissliteHide

Type:
Uniaxial (+)
RI values:
nε = 1.805
Max Birefringence:
δ = 0.000
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Colour in reflected light:
coppery

Chemical Properties of KraissliteHide

Formula:
Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16

The Zn is tetrahedrally coordinated. The mineral was formerly thought to have the formula (Mn2+,Mg)24Zn4(SiO4)8(AsO4)4(OH)12.
Common Impurities:
Al,H2O

Crystallography of KraissliteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
C2 2 21
Cell Parameters:
a = 8.1821(1) Å, b = 14.1946(3) Å, c = 43.9103(8) Å
Ratio:
a:b:c = 0.576 : 1 : 3.093
Unit Cell V:
5099.8 ų
Z:
4
Comment:
Formerly thought to be hexagonal, a = 8.22, c = 43.88 A.

Type Occurrence of KraissliteHide

General Appearance of Type Material:
Films and lenses to one inch thick
Place of Conservation of Type Material:
Smithsonian
Geological Setting of Type Material:
1010 Stope central zincite zone
Associated Minerals at Type Locality:

Synonyms of KraissliteHide

Other Language Names for KraissliteHide

German:Kraisslit
Spanish:Kraisslita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Franklinite4 photos of Kraisslite associated with Franklinite on mindat.org.
Willemite4 photos of Kraisslite associated with Willemite on mindat.org.
Allactite3 photos of Kraisslite associated with Allactite on mindat.org.
Chlorophoenicite3 photos of Kraisslite associated with Chlorophoenicite on mindat.org.
Cleiophane2 photos of Kraisslite associated with Cleiophane on mindat.org.
Holdenite2 photos of Kraisslite associated with Holdenite on mindat.org.
Zincite1 photo of Kraisslite associated with Zincite on mindat.org.
Troostite1 photo of Kraisslite associated with Troostite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BE.05AugeliteAl2(PO4)(OH)3Mon. 2/m : B2/m
8.BE.10GrattarolaiteFe3+3(PO4)O3Trig. 3m : R3m
8.BE.15CornetiteCu3(PO4)(OH)3Orth. mmm (2/m 2/m 2/m) : Pbca
8.BE.20ClinoclaseCu3(AsO4)(OH)3Mon. 2/m : P21/b
8.BE.25ArhbariteCu2Mg(AsO4)(OH)3Tric. 1 : P1
8.BE.25GilmariteCu3(AsO4)(OH)3Tric.
8.BE.30AllactiteMn2+7(AsO4)2(OH)8Mon. 2/m : P21/b
8.BE.30FlinkiteMn2+2Mn3+(AsO4)(OH)4Orth.
8.BE.30RaadeiteMg7(PO4)2(OH)8Mon. 2/m
8.BE.30ArganditeMn7(VO4)2(OH)8Mon. 2/m : P21/m
8.BE.35Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
8.BE.35Magnesiochlorophoenicite(Mg,Mn)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
8.BE.40Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5Tric.
8.BE.45DixeniteCuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6Trig.
8.BE.45Hematolite(Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23Trig. 3 : R3
8.BE.45McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21Trig. 3m (3 2/m)
8.BE.45Arakiite(Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23Mon.
8.BE.45Turtmannite(Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+xTrig.
8.BE.45CarlfrancisiteMn2+3(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42 Trig. 3m (3 2/m) : R3c
8.BE.50SynadelphiteMn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.BE.55Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8Orth. mmm (2/m 2/m 2/m) : Ccca
8.BE.60KoliciteMn2+7Zn4(AsO4)2(SiO4)2(OH)8Orth. mmm (2/m 2/m 2/m) : Cmca
8.BE.65Sabelliite(Cu,Zn)2Zn(AsO4,SbO4)(OH)3Trig. 3 : P3
8.BE.70JarosewichiteMn2+3Mn3+(AsO4)(OH)6Orth. 2 2 2
8.BE.75TheisiteCu5Zn5(AsO4,SbO4)2(OH)14Orth.
8.BE.80CoparsiteCu4(AsO4,VO4)O2ClOrth.
8.BE.85WaterhouseiteMn2+7(PO4)2(OH)8Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.7.1SuzukiiteBaVSi2O7Orth.
17.7.2FranciscaniteMn2+6(V5+,☐)2(SiO4)2(O,OH)6Hex.
17.7.3Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)
17.7.4Ardennite-(As)Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m)
17.7.5MedaiteMn2+6V5+Si5O18(OH)Mon.
17.7.6JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.
17.7.7TiragalloiteMn2+4As5+Si3O12(OH)Mon. 2/m
17.7.8DixeniteCuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6Trig.
17.7.9AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2Trig. 3m : P3c1
17.7.10McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21Trig. 3m (3 2/m)
17.7.12SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
17.7.13Nelenite(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]Mon.
17.7.14KoliciteMn2+7Zn4(AsO4)2(SiO4)2(OH)8Orth. mmm (2/m 2/m 2/m) : Cmca
17.7.15YeatmaniteZn6Mn2+9Sb5+2(SiO4)4O12Tric.
17.7.16WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]Tric. 1 : P1
17.7.17Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb5+2(SiO4)2O20Mon. 2/m : B2/m
17.7.18ParweliteMn10Sb2As2Si2O24Mon. m : Bb
17.7.19LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2Trig. 3m : P3m1
17.7.20ChapmaniteFe3+2Sb3+(Si2O5)O3(OH)Mon. m : Bm
17.7.21Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for KraissliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1978): 63: 938-940.
American Mineralogist (1980): 65: 957-960.
Cooper, M.A.; Hawthorne, F.C. (2012): The crystal structure of kraisslite, [4]Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16, from the Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA. Mineralogical Magazine 76, 2819-2836.

Internet Links for KraissliteHide

Localities for KraissliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Ogdensburg
          • Sterling Hill
Dunn, P.J. & Nelen, J.A. : (1980); Am.Min.:65:957-960; Moore, P. & Ito, J.: Am.Min.:63:938-940 (1978); Parker, F. J. & Troy, J.: Min.Rec.:13:35-38 (1982); Dunn (1995): Pt4: 498-499; Cooper, M.A.; Hawthorne, F.C. (2012): The crystal structure of kraisslite, [4]Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16, from the Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA. Mineralogical Magazine 76, 2819-2836.
Mineral and/or Locality  
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