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Fraipontite

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Formula:
(Zn,Al)
 
3
((Si,Al)
 
2
O
 
5
)(OH)
 
4
May contain some Cu.
System:MonoclinicHardness:
Member of:Kaolinite-Serpentine Group
Name:Named in 1927 by Giuseppe Raimondo Pio Cesàro in honor of Julien Jean Joseph Fraipont [August 17 1857 Liège, Belgium - March 22, 1910 Liège, Belgium], paleontologist and professor of zoology at the University of Liège and noted for his work on Neanderthal man and in honor of his his son, Charles Marie Joseph Julien Fraipont [March 21, 1883 Chênée, Liège, Belgium - April 15, 1946 Forest, near Frasnes-lez-Anvaing, Belgium] professor of paleontology at University of Liège and who also studied Neanderthal man, as well as subjects in his specialty of phytopaleontology.
Isostructural with:Amesite, Berthierine, Cronstedtite, Lizardite

Classification of Fraipontite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/H.27-80
Nickel-Strunz 10th (pending) edition ID:9.ED.15

9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
Dana 8th edition ID:71.1.2c.4

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
Hey's CIM Ref.:16.12.16

16 : Silicates Containing Aluminum and other Metals
12 : Aluminosilicates of Sr, Ba and Zn
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Type Occurrence of Fraipontite

Type Locality:Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium
Year of Discovery:1927

Physical Properties of Fraipontite

Hardness (Mohs):

Crystallography of Fraipontite

Crystal System:Monoclinic
Cell Parameters:a = 5.34Å, b = 9.21Å, c = 14.12Å
β = 93.2°
Ratio:a:b:c = 0.58 : 1 : 1.533
Unit Cell Volume:V 693.36 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
7.03 (100)
4.60 (20)
3.53 (70)
2.650 (40)
2.490 (30)
2.385 (30)
1.540 (30)

Optical Data of Fraipontite

Type:Biaxial (-)
RI values: nα = 1.620 nβ = 1.624 nγ = 1.624
2V:Measured: 15° to 20°
Maximum Birefringence:δ = 0.004

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v strong

Chemical Properties of Fraipontite

Formula:
(Zn,Al)
 
3
((Si,Al)
 
2
O
 
5
)(OH)
 
4


May contain some Cu.
Simplified for copy/paste:(Zn,Al)3((Si,Al)2O5)(OH)4
Essential elements:H, O, Si, Zn
All elements listed in formula:Al, H, O, Si, Zn
Common Impurities:Fe,Cu,Mg,Ca,K

Relationship of Fraipontite to other Species

Member of:Kaolinite-Serpentine Group
Other Members of Group:

- +
Amesite
Mg
 
2
Al(AlSiO
 
5
)(OH)
 
4
Antigorite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Baumite
(Mg,Al,Mn,Zn,Fe)
 
3
(Si,Al)
 
2
O
 
5
(OH)
 
4
Berthierine
(Fe
2+
 
,Fe
3+
 
,AlMg)
 
2-3
((Si,Al)
 
2
O
 
5
)(OH)
 
4
Brindleyite
(Ni,Al)
 
3
(Si,Al)
 
2
O
 
5
(OH)
 
4
Caryopilite
(Mn,Mg)
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Chrysotile
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Clinochrysotile
Cronstedtite
Fe
2+
2
Fe
3+
 
((Si,Fe
3+
 
)
 
2
O
 
5
)(OH)
 
4
Dickite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
Greenalite
Fe
 
2-3
(Si
 
2
O
 
5
)(OH)
 
4
Halloysite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
Kaolinite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
Kellyite
Mn
2+
2
Al(AlSiO
 
5
)(OH)
 
4
Lizardite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Manandonite
Li
 
2
Al
 
4
(Si
 
2
AlB)O
 
10
(OH)
 
8
Nacrite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
Népouite
(Ni,Mg)
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Odinite
(Fe,Mg,Al,Fe,Ti,Mn)
 
2.4
((Si,Al)
 
2
O
 
5
)(OH)
 
4
Orthochrysotile
Parachrysotile
Pecoraite
Ni
 
3
(Si
 
2
O
 
5
)(OH)
 
4
Webskyite
Related Minerals - Nickel-Strunz Grouping):

- +
9.ED.05Dickite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.05Kaolinite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.05Nacrite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.05Odinite
(Fe,Mg,Al,Fe,Ti,Mn)
 
2.4
((Si,Al)
 
2
O
 
5
)(OH)
 
4
9.ED.10Halloysite
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.10Hisingerite
Fe
3+
2
(Si
 
2
O
 
5
)(OH)
 
4
· 2H
 
2
O
9.ED.10Halloysite-7Å
Al
 
2
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Amesite
Mg
 
2
Al(AlSiO
 
5
)(OH)
 
4
9.ED.15Antigorite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Berthierine
(Fe
2+
 
,Fe
3+
 
,AlMg)
 
2-3
((Si,Al)
 
2
O
 
5
)(OH)
 
4
9.ED.15Brindleyite
(Ni,Al)
 
3
(Si,Al)
 
2
O
 
5
(OH)
 
4
9.ED.15Caryopilite
(Mn,Mg)
 
3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Chrysotile
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Cronstedtite
Fe
2+
2
Fe
3+
 
((Si,Fe
3+
 
)
 
2
O
 
5
)(OH)
 
4
9.ED.15Greenalite
Fe
 
2-3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Kellyite
Mn
2+
2
Al(AlSiO
 
5
)(OH)
 
4
9.ED.15Lizardite
Mg
 
3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Manandonite
Li
 
2
Al
 
4
(Si
 
2
AlB)O
 
10
(OH)
 
8
9.ED.15Népouite
(Ni,Mg)
 
3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Pecoraite
Ni
 
3
(Si
 
2
O
 
5
)(OH)
 
4
9.ED.15Guidottiite
Mn
 
2
Fe
3+
 
(Fe
3+
 
SiO
 
5
)(OH)
 
4
9.ED.20Allophane
(Al
 
2
O
 
3
)(SiO
 
2
)
 
1.3-2
· 2.5-3H
 
2
O
9.ED.20Chrysocolla
Cu
 
2-x
Al
 
x
(H
 
2-x
Si
 
2
O
 
5
)(OH)
 
4
· nH
 
2
O (x < 1)
9.ED.20Imogolite
Al
 
2
SiO
 
3
(OH)
 
4
9.ED.20Neotocite
(Mn,Fe,Mg)SiO
 
3
· H
 
2
O
9.ED.25Bismutoferrite
Fe
3+
2
Bi(SiO
 
4
)
 
2
(OH)
9.ED.25Chapmanite
Fe
3+
2
Sb
3+
 
(SiO
 
4
)
 
2
(OH)
Related Minerals - Hey's Index Grouping:

- +
16.12.1Stronalsite
SrNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
16.12.2Slawsonite
(Sr,Ca)Al
 
2
Si
 
2
O
 
8
16.12.3Brewsterite
16.12.4Celsian
BaAl
 
2
Si
 
2
O
 
8
16.12.5Paracelsian
BaAl
 
2
Si
 
2
O
 
8
16.12.6Cymrite
BaAl
 
2
Si
 
2
(O,OH)
 
8
· H
 
2
O
16.12.7Edingtonite
Ba[Al
 
2
Si
 
3
O
 
10
] · 4H
 
2
O
16.12.8Banalsite
BaNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
16.12.9Harmotome
(Ba
 
0.5
,Ca
 
0.5
,K,Na)
 
5
[Al
 
5
Si
 
11
O
 
32
] · 12H
 
2
O
16.12.10Hyalophane
(K,Ba)[Al(Si,Al)Si
 
2
O
 
8
]
16.12.11Balipholite
BaLiMg
 
2
Al
 
3
(Si
 
2
O
 
6
)
 
2
(OH)
 
4
16.12.12Armenite
BaCa
 
2
Al
 
6
Si
 
9
O
 
30
· 2H
 
2
O
16.12.13Wellsite
(Ba,Ca,K
 
2
)Al
 
2
Si
 
6
O
 
16
· 6H
 
2
O
16.12.14Merlinoite
(K,Na)
 
5
(Ca,Ba)
 
2
Al
 
9
Si
 
23
O
 
64
· 23H
 
2
O
16.12.15Anandite
(Ba,K)(Fe
2+
 
,Mg)
 
3
((Si,Al,Fe)
 
4
O
 
10
)(S,OH)
 
2
16.12.17Sauconite
Na
 
0.3
Zn
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· 4H
 
2
O
16.12.18Minehillite
(K,Na)
 
2-3
Ca
 
28
Zn
 
4
Al
 
4
Si
 
40
O
 
112
(OH)
 
16
16.12.19Hendricksite
K(Zn,Mg,Mn
2+
 
)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
16.12.20Baileychlore
(Zn,Fe,Al,Mg)
 
6
((Si,Al)
 
4
O
 
10
)(OH)
 
8

Other Names for Fraipontite

Synonyms:
Zinalsite
Other Languages:
German:Fraipontit
Spanish:Fraipontita
Varieties:
Cuprian Fraipontite

Other Information

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

References for Fraipontite

Reference List:

- +
Cesàro, G. (1927): Sur la fraipontite, silicate basique hydraté de zinc et d'aluminum. Ann. Soc. Geol. Belgique, 50, 106-110 (in French).

Fransolet, A.-M. and P. Bourguignon (1975): Données nouvelles sur la fraipontite de Moresnet (Belgique). Bull. Soc. fr. Minéral., 98, 235-244 (in French with English abs.)

Dimitriadis, S. (1977): Cuprian fraipontite from Laurion, Greece. Neues Jahrbuch für Mineralogie, Monatshefte 155-162.

American Mineralogist: 62: 175.

Foord, E.E., J.E. Taggart, and N.M. Conklin (1983): Cuprian fraipontite and sauconite from the Defiance-Silver Bill mines, Gleeson, Arizona. Mineral. Record, 14, 131-132.

Internet Links for Fraipontite

Search Engines:
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  • External Links:
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  • Look for Fraipontite on Wikipedia
  • Look for Fraipontite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Fraipontite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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    Localities for Fraipontite

    The 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. ? 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.
    Australia
     
    • South Australia
      • Eyre Peninsula
        • Middleback Range
          • Iron Knob
    Minerals of Iron Monarch, Glyn L. Francis
    • Tasmania
      • Zeehan district
        • Zeehan mineral field
    Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    Austria
     
    • Carinthia
      • Gailtaler Alpen & Karnische Alpen
        • Bleiberg District
          • Bad Bleiberg
    G. Niedermayr: Carinthia II, 177./97.: 287 (1987)
    Belgium
     
    • Liège Province
      • Verviers
        • Plombières-Vieille Montagne District (Plombières-Altenberg)
          • Kelmis
            • Moresnet
    Ann.Soc.géol.Belgique,(1927) 50, B106-B110
    Chile
     
    • Tarapacá Region
      • El Tamarugal Province
        • Challacollo
    maurzi
    Germany
     
    • North Rhine-Westphalia
      • Sauerland
        • Meschede
    Wittern: "Mineralfundorte in Deutschland", 2001
    SCHNORRER, G. (1995): Mineralogische Neuheiten von bekannten deutschen Fundorten. Lapis 20 (12), 43-48; 62.
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
    No reference listed
              • Hilarion area
    No reference listed
    No reference listed
    No reference listed
          • Sounion area
            • Agia Varvara Mines (St Barbara Mines)
    Branko Rieck Collection
    Lapis, 24, 7/8, (1999)
    Italy
     
    • Sardinia
      • Sassari Province
        • Porto Torres
    Orlandi, P., & Gelosa, M. (2007). Argentiera della Nurra. I minerali di alterazione della miniera di sfalerite e galena argentifera. Rivista Mineralogica Italiana, 31 (1), 22-31.
    • Tuscany
      • Massa-Carrara Province
        • Apuan Alps
    Orlandi, P. & Criscuolo, A. (2009). Minerali del marmo delle Alpi Apuane. Pacini editore, Pisa, 180 pp.
    S. Merlino & P. Orlandi (2001): Carraraite and zaccagnaite, two new minerals ..... Amer. Miner. 86, 1293-1301
    • Veneto
      • Belluno Province
        • Auronzo di Cadore
    Ara, D., Sanna, L., Rossi, A., Galli, E., & De Waele, J. (2013). Minerali secondari in ambiente sotterraneo: la miniera dell’Argentiera (Sardegna nord-occidentale).
    Namibia
     
    • Otjikoto Region (Oshikoto)
      • Tsumeb
    Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
    Romania
     
    • Suceava Co.
      • Suceava district
        • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
    http://minerals-of-the-carpathians.eu
    Spain
     
    • Andalusia
      • Almería
        • San José
    Georges FAVREAU collection
    • Catalonia
      • Lleida (Lérida)
        • La Cerdanya
    Calvo, M., Viñals, J. & Triviño, A.: Zálesiíte, felsobanyaite and fraipontite, in a conglomerate in Prullans, La Cerdanya, Catalonia (Spain). Mineral Up, Vol. I, 3, 49-51
    Switzerland
     
    • Wallis (Valais)
      • Anniviers Valley
        • Saint-Luc
    Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
    Turkmenistan
     
    • Lebap Province
      • South Tien-Shan Mts
        • Kugitangtau Ridge
    http://fadr.msu.ru/caves/malmin_e.html
    UK
     
    • England
      • Cumbria
        • North and Western Region (Cumberland)
          • Caldbeck Fells
            • Roughton Gill
    Pluth, J. J., Steele, I. M., Kampf, A. R. & Green, D. I. (2005): Redgillite, Cu6(OH)10(SO4)•H2O, a new mineral from Caldbeck Fells, Cumbria, England: description and crystal structure. Mineralogical Magazine, 69, 973-980.
      • North Yorkshire
        • North Pennines
          • Swaledale
            • Marrick
    Daltry, Vaughn & Deliens, Michel (1994) The Type Mineralogy of Belgium . Annals of the Belgium Geological Society 116:15-28
          • Wensleydale
            • Redmire
    BMS Database
    • Wales
      • Caerphilly (Mid Glamorgan; Monmouthshire)
        • Machen
    Minerals of Machen Quarry, Plant & Jones, Journal of the Russell Society, Vol 6, Pt 1, 1995
    USA
     
    • Arizona
      • Cochise Co.
        • Dragoon Mts
          • Turquoise District (Courtland-Gleeson District)
            • Gleeson
              • Costello Mine group (Costello claims)
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 361; Foord, E.E., et al (1983), Cuprian fraipontite and sauconite from the Defiance-Silver Bill Mines, Gleeson, AZ, Min.Rec.: 14: 131-132.
    [var: Cuprian Fraipontite] Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 226, 361; Foord, E.E., et al (1983), Cuprian fraipontite and sauconite from the Defiance-Silver Bill mines, Gleeson, AZ, Min.Rec.: 14: 131-132.
      • Pinal Co.
        • Mammoth District
          • Tiger
            • St. Anthony deposit
    1) ID Paul Hlava, New Mexico. 2) An ID of Cuprian Fraipontite is consistent with form and composition determined by EDS and WDS microprobe analysis on November 17, 2006 at Cannon Microprobe--Seattle, Washington, USA
    • California
      • Inyo Co.
        • Nopah Range
          • Upper Noonday Camp
            • Shoshone Mines (Shoshone Mines group; Shoshone Mine group; Grant Mine; Mabel Mine; Black Prince Mine)
    Mindat gallery; Robert M. Housley (2005) Noonday and War Eagle mines, Tecopa Pass, Inyo Co. CA. Abstracts from the 2005 Desert Symposium. California State University, Desert Studies Consortium and LSA Associates, Inc.
      • San Bernardino Co.
        • Clark Mts (Clark Mountain Range)
          • Clark Mountain District
            • Pactolus
              • Mohawk Hill
    [Mineralien Welt 1/93:44]
        • Soda Lake Mts
          • Baker
    Collected by and in the collection of Brent Thorne.
    • Nevada
      • Clark Co.
        • Spring Mts
          • Goodsprings District
    Rocks & Minerals 83:1 pp 65-69
      • Elko Co.
        • Bootstrap District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Eureka Co.
        • Maggie Creek District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
        • Lodi District
          • Quartz Mountain camp
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    Cianciulli, J.: The Picking Table:36(1):27 (1995); Dunn(1995):Pt4:486.
    • New Mexico
      • Hidalgo Co.
        • Peloncillo Mts
          • San Simon District
            • Kimball
    NMBMMR New Mexico Mineral symposium (2003) pp. 8-9
        • San Simon District
          • Granite Gap
    R. D. Green photo
      • Socorro Co.
    Northrop, Minerals of New Mexico, 3rd Rev. ed., 1996
          • Bingham
    Minerals of New Mexico 3rd ed.
    Northrop, Minerals of New Mexico, 3rd. rev. ed. (1996)
    Mineral and/or Locality  
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