Kraisslite
A valid IMA mineral species
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About 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.
Colour:
Pale red-brown, deep coppery brown
Lustre:
Pearly
Hardness:
3 - 4
Specific Gravity:
3.876
Crystal System:
Orthorhombic
Member of:
Name:
Named in honor of Alice and Frederick 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. 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 and made many discoveries of Franklin-Ogdensburg minerals, including jarosewichite, flinkite, and several species still unnamed. 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.
This page provides mineralogical data about Kraisslite.
Unique Identifiers
Mindat ID:
2268
Long-form identifier:
mindat:1:1:2268:8
GUID
(UUID V4):
(UUID V4):
94036caa-86fb-4110-9c67-c7969b7a6620
IMA Classification of Kraisslite
Approved
Approval year:
1977
First published:
1978
Classification of Kraisslite
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
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
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
17 : Silicates Containing other Anions
7 : Silicates with vanadate, arsenate or antimonate
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Ksl | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Kraisslite
Pearly
Transparency:
Transparent, Translucent
Colour:
Pale red-brown, deep coppery brown
Streak:
golden brown
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{0001}
{0001}
Density:
3.876 g/cm3 (Measured) 3.903 g/cm3 (Calculated)
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Colour in reflected light:
coppery
Chemistry of Kraisslite
Mindat 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.
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 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 V:
5099.8 ų
Z:
4
Comment:
Formerly thought to be hexagonal, a = 8.22, c = 43.88 A.
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0019752 | Kraisslite | Cooper M A, Hawthorne F C (2012) Crystal structure of kraisslite, 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 | 2012 | the Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.9 Å | (6) |
7.27 Å | (1) |
4.385 Å | (45) |
3.651 Å | (35) |
3.130 Å | (20) |
2.993 Å | (2) |
2.740 Å | (100) |
2.437 Å | (55) |
2.194 Å | (55) |
1.4601 Å | (1) |
1.2907 Å | (2) |
1.2190 Å | (7) |
1.1552 Å | (2) |
Comments:
ICDD 29-1432
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Kraisslite
General Appearance of Type Material:
Films and lenses to one inch thick
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 137017, 137018.
Geological Setting of Type Material:
1010 Stope central zincite zone.
Associated Minerals at Type Locality:
Reference:
Moore, P.B., Ito, J. (1978) Kraisslite, a new platy arsenosilicate from Sterling Hill, New Jersey. American Mineralogist: 63: 938-940.
Synonyms of Kraisslite
Other Language Names for Kraisslite
German:Kraisslit
Spanish:Kraisslita
Relationship of Kraisslite to other Species
Member of:
Other Members of this group:
Arakiite | (Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23 | Mon. m : Bb |
Dixenite | CuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6 | Trig. 3 : R3 |
Hematolite | (Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23 | Trig. 3 : R3 |
Mcgovernite | Mn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21 | Trig. 3m (3 2/m) |
Synadelphite | Mn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
Turtmannite | (Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+x | Trig. |
Common Associates
Associated Minerals Based on Photo Data:
20 photos of Kraisslite associated with Willemite | Zn2SiO4 |
19 photos of Kraisslite associated with Franklinite | Zn2+Fe3+2O4 |
8 photos of Kraisslite associated with Zincite | ZnO |
7 photos of Kraisslite associated with Holdenite | (Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8 |
7 photos of Kraisslite associated with Calcite | CaCO3 |
5 photos of Kraisslite associated with Chlorophoenicite | (Mn,Mg)3Zn2(AsO4)(OH,O)6 |
4 photos of Kraisslite associated with Akrochordite | (Mn2+,Mg)5(AsO4)2(OH)4 · 4H2O |
4 photos of Kraisslite associated with Eveite | Mn2+2(AsO4)(OH) |
4 photos of Kraisslite associated with Sarkinite | Mn2+2(AsO4)(OH) |
4 photos of Kraisslite associated with Sussexite | Mn2+BO2(OH) |
Related Minerals - Strunz-mindat Grouping
8.BE.05 | Augelite | Al2(PO4)(OH)3 |
8.BE.10 | Grattarolaite | Fe3+3(PO4)O3 |
8.BE.15 | Cornetite | Cu3(PO4)(OH)3 |
8.BE.20 | Clinoclase | Cu3(AsO4)(OH)3 |
8.BE.25 | Arhbarite | Cu2Mg(AsO4)(OH)3 |
8.BE.25 | Gilmarite | Cu3(AsO4)(OH)3 |
8.BE.30 | Allactite | Mn2+7(AsO4)2(OH)8 |
8.BE.30 | Flinkite | Mn2+2Mn3+(AsO4)(OH)4 |
8.BE.30 | Raadeite | Mg7(PO4)2(OH)8 |
8.BE.30 | Argandite | Mn7(VO4)2(OH)8 |
8.BE.35 | Chlorophoenicite | (Mn,Mg)3Zn2(AsO4)(OH,O)6 |
8.BE.35 | Magnesiochlorophoenicite | (Mg,Mn)3Zn2(AsO4)(OH,O)6 |
8.BE.35 | Mineral E (of Dunn, et. al., 1982) | |
8.BE.40 | Gerdtremmelite | (Zn,Fe)(Al,Fe)2(AsO4)(OH)5 |
8.BE.45 | Dixenite | CuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6 |
8.BE.45 | Hematolite | (Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23 |
8.BE.45 | Mcgovernite | Mn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21 |
8.BE.45 | Arakiite | (Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23 |
8.BE.45 | Turtmannite | (Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+x |
8.BE.45 | Carlfrancisite | Mn2+3(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42 |
8.BE.50 | Synadelphite | Mn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2O |
8.BE.55 | Holdenite | (Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8 |
8.BE.60 | Kolicite | Mn2+7Zn4(AsO4)2(SiO4)2(OH)8 |
8.BE.65 | Sabelliite | (Cu,Zn)2Zn(AsO4,SbO4)(OH)3 |
8.BE.70 | Jarosewichite | Mn2+3Mn3+(AsO4)(OH)6 |
8.BE.75 | Theisite | Cu5Zn5(AsO4,SbO4)2(OH)14 |
8.BE.80 | Coparsite | Cu4(AsO4,VO4)O2Cl |
8.BE.85 | Waterhouseite | Mn2+7(PO4)2(OH)8 |
8.BE.90 | Vasilseverginite | Cu9O4(AsO4)2(SO4)2 |
Fluorescence of Kraisslite
Not fluorescent in UV
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.
Internet Links for Kraisslite
mindat.org URL:
https://www.mindat.org/min-2268.html
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References for Kraisslite
Reference List:
Moore, Paul B., Ito, Jun (1978) Kraisslite, a new platy arsenosilicate from Sterling Hill, New Jersey. American Mineralogist, 63 (9-10) 938-940
Localities for Kraisslite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
USA (TL) | |
| Moore et al. (1978) +4 other references |
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Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA