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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.
System:
Orthorhombic
Colour:
Pale red-brown, deep ...
Lustre:
Pearly
Hardness:
3 - 4
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.

Classification of Kraisslite

Approved 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
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First Recorded Occurrence of Kraisslite

General Appearance of First Recorded Material:
Films and lenses to one inch thick
Place of Conservation of First Recorded Material:
Smithsonian
Year of Discovery:
1977
Geological Setting of First Recorded Material:
1010 Stope central zincite zone

Physical Properties of Kraisslite

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

Crystallography of Kraisslite

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 Volume:
V 5099.8 ų
Z:
4
Comment:
Formerly thought to be hexagonal, a = 8.22, c = 43.88 A.

Optical Data of Kraisslite

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 Kraisslite

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.
Essential elements:
All elements listed in formula:
Common Impurities:
Al,H2O

Relationship of Kraisslite to other Species

8.BE.05AugeliteAl2(PO4)(OH)3
8.BE.10GrattarolaiteFe33+(PO4)O3
8.BE.15CornetiteCu3(PO4)(OH)3
8.BE.20ClinoclaseCu3(AsO4)(OH)3
8.BE.25ArhbariteCu2Mg(AsO4)(OH)3
8.BE.25GilmariteCu3(AsO4)(OH)3
8.BE.30AllactiteMn72+(AsO4)2(OH)8
8.BE.30FlinkiteMn22+Mn3+(AsO4)(OH)4
8.BE.30RaadeiteMg7(PO4)2(OH)8
8.BE.30ArganditeMn7(VO4)2(OH)8
8.BE.35Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6
8.BE.35Magnesiochlorophoenicite(Mg,Mn)3Zn2(AsO4)(OH,O)6
8.BE.40Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5
8.BE.45DixeniteCuMn142+Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6
8.BE.45Hematolite(Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23
8.BE.45McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21
8.BE.45Arakiite(Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23
8.BE.45Turtmannite(Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+x
8.BE.45CarlfrancisiteMn32+(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42
8.BE.50SynadelphiteMn92+(As5+O4)2(As3+O3)(OH)9 · 2H2O
8.BE.55Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8
8.BE.60KoliciteMn72+Zn4(AsO4)2(SiO4)2(OH)8
8.BE.65Sabelliite(Cu,Zn)2Zn(AsO4,SbO4)(OH)3
8.BE.70JarosewichiteMn32+Mn3+(AsO4)(OH)6
8.BE.75TheisiteCu5Zn5(AsO4,SbO4)2(OH)14
8.BE.80CoparsiteCu4(AsO4,VO4)O2Cl
8.BE.85WaterhouseiteMn72+(PO4)2(OH)8
17.7.1SuzukiiteBaVSi2O7
17.7.2FranciscaniteMn62+(V5+,☐)2(SiO4)2(O,OH)6
17.7.3Kurumsakite(Zn,Ni,Cu)8Al8V25+Si5O35 · 27H2O (?)
17.7.4Ardennite-(As)Mn42+Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
17.7.5Medaite(Mn,Ca)6(V,As)Si5O18OH
17.7.6JohninnesiteNa2Mn92+Mg7(OH)8[AsO4]2[Si6O17]2
17.7.7TiragalloiteMn42+(HAsSi3O13)
17.7.8DixeniteCuMn142+Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6
17.7.9AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2
17.7.10McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21
17.7.12Schallerite(Mn,Fe)16Si12As3O36(OH)17
17.7.13Nelenite(Mn,Fe)16(Si12O30)(OH)14[As33+O6(OH)3]
17.7.14KoliciteMn72+Zn4(AsO4)2(SiO4)2(OH)8
17.7.15YeatmaniteZn6Mn92+Sb25+(SiO4)4O12
17.7.16WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]
17.7.17Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb25+(SiO4)2O20
17.7.18ParweliteMn10Sb2As2Si2O24
17.7.19Långbanite(Mn2+,Ca)4(Mn3+,Fe3+)9Sb5+(SiO4)2O16
17.7.20ChapmaniteFe23+Sb3+(Si2O5)O3(OH)
17.7.21Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)

Other Names for Kraisslite

Name in Other Languages:
German:Kraisslit
Spanish:Kraisslita

Other Information

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 Kraisslite

Reference List:
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 Kraisslite

Localities for Kraisslite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
USA
 
  • 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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