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Guérinite

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Formula:
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 9H
 
2
O
System:MonoclinicColour:Colorless
Hardness:
Name:Named by Yevgeny I. Nefedov in 1961 for Henri Guérin [1906- ], French chemist who synthesized the compound.
Dimorph of:Ferrarisite


Acicular, bladed, or tabular crystals.

Classification of Guérinite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/C.24-60
Nickel-Strunz 10th (pending) edition ID:8.CJ.75

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations
Dana 8th edition ID:39.2.2.2

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
2 : (AB)5[HXO4]2[XO4]2.xH2O
Hey's CIM Ref.:20.2.11

20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba
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Type Occurrence of Guérinite

Type Locality:Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany
Geological Setting of type material:Post-mine

Physical Properties of Guérinite

Lustre:Sub-Vitreous, Silky, Pearly
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colorless
Streak:White
Hardness (Mohs):
Tenacity:Brittle
Density (measured):2.68 - 2.76 g/cm3
Density (calculated):2.74 g/cm3
Comment:Acta Cryst. B (1974) 30:1789 structure

Crystallography of Guérinite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b
Cell Parameters:a = 17.63Å, b = 6.734Å, c = 23.47Å
β = 90.6°
Ratio:a:b:c = 2.618 : 1 : 3.485
Unit Cell Volume:V 2,786.22 ų (Calculated from Unit Cell)
Z:5
Comment:P21/n (synthetic)
X-Ray Powder Diffraction:
d-spacingIntensity
14.0 (100)
11.7 (40)
8.7 (30)
4.84 (40)
3.89 (80)
3.49 (60)
3.01 (80)
2.90 (80)
Comments:ICDD 26-1055

Optical Data of Guérinite

Type:Biaxial (-)
RI values: nα = 1.574 - 1.576 nβ = 1.582 nγ = 1.582 - 1.584
2V:Measured: 7° to 5°
Birefringence:0.008
Maximum Birefringence:δ = 0.008

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong, also r < v
Optical Extinction:Z=elongation
Pleochroism:Non-pleochroic

Chemical Properties of Guérinite

Formula:
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 9H
 
2
O
Simplified for copy/paste:Ca5(AsO4)2(HAsO4)2·9H2O
Essential elements:As, Ca, H, O
All elements listed in formula:As, Ca, H, O

Relationship of Guérinite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.CJ.05Stercorite
Na(NH
 
4
)HPO
 
4
· 4H
 
2
O
8.CJ.10Mundrabillaite
(NH
 
4
)
 
2
Ca(HPO
 
4
)
 
2
· H
 
2
O
8.CJ.10Swaknoite
(NH
 
4
)
 
2
Ca(HPO
 
4
)
 
2
· H
 
2
O
8.CJ.15Nabaphite
NaBaPO
 
4
· 9H
 
2
O
8.CJ.15Nastrophite
Na(Sr,Ba)PO
 
4
· 9H
 
2
O
8.CJ.20Haidingerite
CaHAsO
 
4
· H
 
2
O
8.CJ.25Vladimirite
Ca
 
4
(AsO
 
4
)
 
2
(AsO
 
3
OH) · 4H
 
2
O
8.CJ.30Ferrarisite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 9H
 
2
O
8.CJ.35Machatschkiite
(Ca,Na)
 
6
(AsO
 
4
)(HAsO
 
4
)
 
3
(PO
 
4
,SO
 
4
) · 15H
 
2
O
8.CJ.40Phaunouxite
Ca
 
3
(AsO
 
4
)
 
2
· 11H
 
2
O
8.CJ.40Rauenthalite
Ca
 
3
(AsO
 
4
)
 
2
· 10H
 
2
O
8.CJ.45Brockite
(Ca,Th,Ce)PO
 
4
· H
 
2
O
8.CJ.45Grayite
(Th,Pb,Ca)(PO
 
4
) · H
 
2
O
8.CJ.45Rhabdophane-(Ce)
(Ce,La)(PO
 
4
) · H
 
2
O
8.CJ.45Rhabdophane-(La)
(La,Ce)(PO
 
4
) · H
 
2
O
8.CJ.45Rhabdophane-(Nd)
(Nd,Ce,La)(PO
 
4
) · H
 
2
O
8.CJ.45Tristramite
(Ca,U,Fe)(PO
 
4
,SO
 
4
) · 2H
 
2
O
8.CJ.45Smirnovskite
CaTh(PO
 
4
)
 
2
· nH
 
2
O
8.CJ.50Ardealite
Ca
 
2
(HPO
 
4
)(SO
 
4
) · 4H
 
2
O
8.CJ.50Brushite
Ca(HPO
 
4
) · 2H
 
2
O
8.CJ.50Churchite-(Y)
Y(PO
 
4
) · 2H
 
2
O
8.CJ.50Pharmacolite
Ca(HAsO
 
4
) · 2H
 
2
O
8.CJ.50Churchite-(Nd)
Nd(PO
 
4
) · 2H
 
2
O
8.CJ.55Mcnearite
NaCa
 
5
(AsO
 
4
)(HAsO
 
4
)
 
4
· 4H
 
2
O
8.CJ.60Dorfmanite
Na
 
2
HPO
 
4
· 2H
 
2
O
8.CJ.65Sincosite
Ca(VO)
 
2
(PO
 
4
)
 
2
· 5H
 
2
O
8.CJ.65Bariosincosite
Ba(VO)
 
2
(PO
 
4
)
 
2
· 4H
 
2
O
8.CJ.70Catalanoite
Na
 
2
(HPO
 
4
) · 8H
 
2
O
8.CJ.85Ningyoite
CaU(PO
 
4
)
 
2
· 1-2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.2.1Bearsite
Be
 
2
(AsO
 
4
)(OH) · 4H
 
2
O
20.2.2Brassite
Mg(HAsO
 
4
) · 4H
 
2
O
20.2.3Rösslerite
Mg(HAsO
 
4
) · 7H
 
2
O
20.2.4Hörnesite
Mg
 
3
(AsO
 
4
)
 
2
· 8H
 
2
O
20.2.5Weilite
Ca(HAsO
 
4
)
20.2.6Johnbaumite
Ca
 
5
(AsO
 
4
)
 
3
OH
20.2.7Haidingerite
CaHAsO
 
4
· H
 
2
O
20.2.8Pharmacolite
Ca(HAsO
 
4
) · 2H
 
2
O
20.2.9Sainfeldite
CaCa
 
2
Ca
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 4H
 
2
O
20.2.10Vladimirite
Ca
 
4
(AsO
 
4
)
 
2
(AsO
 
3
OH) · 4H
 
2
O
20.2.12Ferrarisite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 9H
 
2
O
20.2.13Rauenthalite
Ca
 
3
(AsO
 
4
)
 
2
· 10H
 
2
O
20.2.14Phaunouxite
Ca
 
3
(AsO
 
4
)
 
2
· 11H
 
2
O
20.2.15Mcnearite
NaCa
 
5
(AsO
 
4
)(HAsO
 
4
)
 
4
· 4H
 
2
O
20.2.16Bergslagite
CaBeAsO
 
4
(OH)
20.2.17Adelite
CaMg(AsO
 
4
)(OH)
20.2.18Talmessite
Ca
 
2
Mg(AsO
 
4
)
 
2
· 2H
 
2
O
20.2.19Irhtemite
Ca
 
4
Mg(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 4H
 
2
O
20.2.20Camgasite
CaMg(AsO
 
4
)(OH) · 5H
 
2
O
20.2.21Picropharmacolite
Ca
 
4
Mg(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
· 11H
 
2
O
20.2.22Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 5H
 
2
O

Other Names for Guérinite

Other Languages:
German:Guérinit
Russian:Геренит
Геринит
Spanish:Guérinita

Other Information

Fluorescence in UV light:Not fluorescent.
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 Guérinite

Reference List:

- +
American Mineralogist: 47: 416.

Pierrot, R. (1964): Contribution à la minéralogie des arséniates calciques et calcomagnésiens naturels. Bull. Soc. fr. Minéral. Cristallogr. 87, 169-211.

American Mineralogist (1965): 50: 812.

Acta Crystallographica (1974): B30: 1789-1794. [structure]

Internet Links for Guérinite

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

    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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Příbram
          • Háje
    Minerál 5/1995; Ondruš, P. & Hyršl, J. (1989): New finds and revision of secondary minerals from Příbram district. Acta Universitatis Carolinae, Geologica 1989, 521-533.
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov District (St Joachimsthal)
    Lapis 2002(7/8), 63-65
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník (Jauernig)
    Sejkora, J.: Uranové ložisko Zálesí v Rychlebských horách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 105-110.
    France
     
    • Alsace
      • Haut-Rhin
        • Ste Marie-aux-Mines (Markirch)
          • Neuenberg
    Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
        • Thur valley (Thann valley)
          • Kruth
    Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997; U. Kolitsch (1997): Neufunde von Mineralien aus einigen Vorkommen der Vogesen, Frankreich: Giromagny, Auxelles-Haut und Kruth 1. Aufschluss 48 (4), 243-256.
    • Languedoc-Roussillon
      • Aude
        • Carcassonne
          • Mas-Cabardès
            • Salsigne
    Josef Vajdak, Pequa Rare Minerals, Massapequa, NY
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Duranus
    Perroud, P. (1989). "Les minéraux de Duranus." Le Cristallier Suisse, 8(5),pp:216-230
    Cuchet S. (2000), Mystérieuse irhtémite à Lucéram, Alpes-Maritimes, Le Règne Minéral, n°36, pp: 38-42
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Hornberg
    Gröbner, J. & Schrenk, D. (2005): Die Mineralien des Tunnels bei Hornberg. Der Erzgräber 19, 17-25. (in German)
        • Schenkenzell
          • Wittichen
    Carsten Slotta collection
            • Heubach Valley
    No reference listed
        • Wolfach
          • Oberwolfach
            • Rankach valley
    Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    • Hesse
      • Richelsdorf District
        • Bauhaus
    various collections (see photos)
        • Süss
          • Richelsdorf Smelter
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
    • Lower Saxony
      • Harz
        • St Andreasberg District
          • St Andreasberg
    No reference listed
    • Saxony-Anhalt
      • Harz
        • Wernigerode
          • Hasserode
    Wittern: "Mineralfundorte in Deutschland", 2001
    • Saxony
      • Erzgebirge
        • Marienberg District
          • Lauta
    Hajek, W. (2010): Kristallwelten Marienberg. Weise Verlag, München.
        • Schlema-Hartenstein District
    T. Witzke (1992) Mineralien-Welt 3(6), 16-18
        • Schneeberg District
          • Neustädtel
    Bulletin de Minéralogie 87 (1964), 169; Wittern: "Mineralfundorte in Deutschland", 2001
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Plaka
            • Plaka Mines
    Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
    Japan
     
    • Kyushu Region
      • Oita prefecture
        • Saiki City
          • Kiura mine (Shin-Kiura mine; Kiura emery mine)
    Masayuki Ohnishi, Norimasa Shimobayashi, Shigetomo Kishi, Mitsuo Tanabe, Shoichi Kobayashi (2013) Talmessite from the Uriya deposit at the Kiura mining area, Oita Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 108, No. 2 (April), 116-120.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Aït Ahmane
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Bou Azer
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Ightem
    Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Switzerland
     
    • Wallis (Valais)
      • Anniviers Valley
        • Ayer
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 161+202.; Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
    USA
     
    • Michigan
      • Keweenaw Co.
        • Mohawk
    [Mineralogical Record - Vol 23 No. 2]
    • Nevada
      • Humboldt Co.
        • Osgood Mts
          • Potosi District
            • Adam Peak
    MinRec 19:253-257
        • Potosi District
          • Adam Peak
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    The Picking Table:22(1):2; Dunn(1995):Pt5:668.
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