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Rauenthalite

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Rauenthalite, etc.

Giftgrube mine, Sankt Jakob vein, Neuenberg, Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Rauenthalite

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Rauenthalite, etc.

Gabe Gottes Mine, Sankt Jakob vein, Neuenberg, Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Rauenthalite, etc.

Giftgrube mine, Sankt Jakob vein, Neuenberg, Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Rauenthalite

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Rauenthalite, etc.

Gabe Gottes Mine, Sankt Jakob vein, Neuenberg, Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Rauenthalite, etc.

Giftgrube mine, Sankt Jakob vein, Neuenberg, Ste Marie-aux-Mines, Haut-Rhin, Grand Est, France
Rauenthalite

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Formula:
Ca3(AsO4)2 · 10H2O
System:
Triclinic
Colour:
Colorless, white
Lustre:
Sub-Vitreous, Waxy
Hardness:
2
Name:
Named by Roland Pierrot in 1964 for the Rauenthal Valley, France near the original locality Ste Marie-aux-Mines.
Often associated with the chemically nearly identical phaunouxite, but phaunouxite easily dehydrates to rauenthalite.


Classification of Rauenthalite

IMA status:
Approved
Approval Year:
1964
Strunz 8th ed.:
7/C.24-70
Nickel-Strunz 10th (pending) ed.:
8.CJ.40

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations
Dana 8th ed.:
40.3.11.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
3 : A3(XO4)2·xH2O
Hey's CIM Ref.:
20.2.13

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

Physical Properties of Rauenthalite

Lustre:
Sub-Vitreous, Waxy
Diaphaneity (Transparency):
Transparent
Colour:
Colorless, white
Streak:
Colorless
Hardness (Mohs):
2
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.36 g/cm3 (Measured)    2.362 g/cm3 (Calculated)

Optical Data of Rauenthalite

Type:
Biaxial (+)
RI values:
nα = 1.540 - 1.546 nβ = 1.552 nγ = 1.570 - 1.576
2V:
Measured: 85° , Calculated: 80°
Birefringence:
0.030
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
weak
Optical Extinction:
Inclined
Pleochroism:
Non-pleochroic

Chemical Properties of Rauenthalite

Formula:
Ca3(AsO4)2 · 10H2O
Elements listed in formula:
As, Ca, H, O - search for minerals with similar chemistry

Crystallography of Rauenthalite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Space Group Setting:
P1
Cell Parameters:
a = 12.564(8) Å, b = 12.169(7) Å, c = 6.195(4) Å
α = 89.09(3)°, β = 79.69(3)°, γ = 118.58(4)°
Ratio:
a:b:c = 1.032 : 1 : 0.509
Unit Cell Volume:
V 812.65 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Bladed crystals, often in somewhat radial arrangement.
Comment:
Non-standard setting.
X-Ray Powder Diffraction Data:
d-spacingIntensity
10.8 (100)
6.2 (very weak)
3.79 (faint)
3.36 (medium)
2.58 (very weak)
2.44 (weak)
2.04 (very weak)

Type Occurrence of Rauenthalite

Type Locality:
ⓘ Gabe Gottes Mine, Sankt Jakob vein, Neuenberg, Ste Marie-aux-Mines (Markirch), Haut-Rhin, Grand Est, France
General Appearance of Type Material:
Colorless to cloudy white bladed crystals
Geological Setting of Type Material:
Post-mine efflorescence on mine tunnel walls.
Associated Minerals at Type Locality:
SainfelditeSainfelditePicropharmacolitePhaunouxitePharmacolite
Löllingite

Relationship of Rauenthalite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.CJ.05StercoriteNa(NH4)HPO4 · 4H2O
8.CJ.10Mundrabillaite(NH4)2Ca(HPO4)2 · H2O
8.CJ.10Swaknoite(NH4)2Ca(HPO4)2 · H2O
8.CJ.15NabaphiteNaBaPO4 · 9H2O
8.CJ.15NastrophiteNa(Sr,Ba)PO4 · 9H2O
8.CJ.20HaidingeriteCaHAsO4 · H2O
8.CJ.25VladimiriteCa4(AsO4)2(AsO3OH) · 4H2O
8.CJ.30FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2O
8.CJ.35Machatschkiite(Ca,Na)6(AsO4)(HAsO4)3(PO4,SO4) · 15H2O
8.CJ.40PhaunouxiteCa3(AsO4)2 · 11H2O
8.CJ.45Brockite(Ca,Th,Ce)PO4 · H2O
8.CJ.45Grayite(Th,Pb,Ca)(PO4) · H2O
8.CJ.45Rhabdophane-(Ce)(Ce,La)(PO4) · H2O
8.CJ.45Rhabdophane-(La)(La,Ce)(PO4) · H2O
8.CJ.45Rhabdophane-(Nd)(Nd,Ce,La)(PO4) · H2O
8.CJ.45Tristramite(Ca,U,Fe)(PO4,SO4) · 2H2O
8.CJ.45SmirnovskiteCaTh(PO4)2 · nH2O
8.CJ.50ArdealiteCa2(HPO4)(SO4) · 4H2O
8.CJ.50BrushiteCa(HPO4) · 2H2O
8.CJ.50Churchite-(Y)Y(PO4) · 2H2O
8.CJ.50PharmacoliteCa(HAsO4) · 2H2O
8.CJ.50Churchite-(Nd)Nd(PO4) · 2H2O
8.CJ.55McneariteNaCa5(AsO4)(HAsO4)4 · 4H2O
8.CJ.60DorfmaniteNa2HPO4 · 2H2O
8.CJ.65SincositeCa(VO)2(PO4)2 · 5H2O
8.CJ.65BariosincositeBa(VO)2(PO4)2 · 4H2O
8.CJ.70CatalanoiteNa2(HPO4) · 8H2O
8.CJ.75GuériniteCa5(AsO4)2(HAsO4)2 · 9H2O
8.CJ.85NingyoiteCaU(PO4)2 · 1-2H2O
Related Minerals - Hey's Index Grouping:
20.2.1BearsiteBe2(AsO4)(OH) · 4H2O
20.2.2BrassiteMg(HAsO4) · 4H2O
20.2.3RößleriteMg(HAsO4) · 7H2O
20.2.4HörnesiteMg3(AsO4)2 · 8H2O
20.2.5WeiliteCa(HAsO4)
20.2.6JohnbaumiteCa5(AsO4)3OH
20.2.7HaidingeriteCaHAsO4 · H2O
20.2.8PharmacoliteCa(HAsO4) · 2H2O
20.2.9SainfelditeCaCa2Ca2(AsO4)2(HAsO4)2 · 4H2O
20.2.10VladimiriteCa4(AsO4)2(AsO3OH) · 4H2O
20.2.11GuériniteCa5(AsO4)2(HAsO4)2 · 9H2O
20.2.12FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2O
20.2.14PhaunouxiteCa3(AsO4)2 · 11H2O
20.2.15McneariteNaCa5(AsO4)(HAsO4)4 · 4H2O
20.2.16BergslagiteCaBeAsO4(OH)
20.2.17AdeliteCaMg(AsO4)(OH)
20.2.18TalmessiteCa2Mg(AsO4)2 · 2H2O
20.2.19IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2O
20.2.20CamgasiteCaMg(AsO4)(OH) · 5H2O
20.2.21PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2O
20.2.22BariopharmacosideriteBa0.5Fe43+(AsO4)3(OH)4 · 5H2O

Other Names for Rauenthalite

Synonyms:

IMA1964-007

Name in Other Languages:
Spanish:Rauenthalita

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 Rauenthalite

Reference List:
Pierrot, R. (1964): Contribution à la minéralogie des arséniates calciques et calcomagnésiens naturels. ulletin de la Société française de Minéralogie et de Cristallographie 87, 169-211. [Abs. in American Mineralogist (1965): 50: 805]

Walenta, K. (1972): Die Sekundärmineralien der Co-Ni-Ag-Bi-U-Erzgänge im Gebiet von Wittichen im mittleren Schwarzwald. Aufschluß, 23, 279-329. (in German) [esp. p. 311]

Bari, H., Catti, M., Ferraris, G., Ivaldi, G. & Permingeat, F. (1982): Phaunouxite Ca3(AsO4)2•11H2O, a new mineral strictly associated with rauenthalite. Bull. Minéral. 105, 327-332.

Catti, M. and Ivaldi, G. (1983): On the Topotactic Dehydration Ca3(AsO4)2.11H2O (Phaunouxite) -> Ca3(AsO4)2.10H20 (rauenthalite) and Structure of Both Minerals. Acta Crystallographica B39: 4-10.

Internet Links for Rauenthalite

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    • Localities for Rauenthalite

    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.
    (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.
    Austria
     
    • Styria
      • Schladming
        • Schladminger Tauern
          • Obertalbach valley
    		Taucher, J. & Hollerer, C.E. (1994): Phaunouxit und Rauenthalit von der Co-Ni-Lagerstätte Zinkwand-Vöttern, Schladminger Tauern, Steiermark. Matrixx 3, 69-72.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov District (St Joachimsthal)
    		Lapis 2002(7/8), 63-65
      • Plzeň Region
        • Planá u Mariánských Lázní (Plan)
    		Tvrdý, J., Řídkošil, T.: Sekundární minerály z lokality Svatá Anna v Plané u Mariánských Lázní. Časopis pro mineralogii a geologii, 1983, roč. 28, č. 3, s. 316.; http://www.mineralos.cz/lokality/plana/plana.htm
    France
     
    • Grand Est
      • Haut-Rhin
        • Ste Marie-aux-Mines (Markirch)
    		P&T N°23-24, H. BARI 1982, Minéralogie des filons du Neuenberg à Sainte Marie aux Mines (Haut-Rhin).
    Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    Paul De Bondt
    Pierre et Terre 1982
            • Sankt Jakob vein
    		Pierrot: Bull. Soc. Franc. Min. Cristallog. 87 (1964)
    P&T N°23-24, H. BARI 1982, Minéralogie des filons du Neuenberg à Sainte Marie aux Mines (Haut-Rhin).
    in the collection of Joachim Esche
    • Occitanie
      • Aude
        • Carcassonne
          • Mas-Cabardès
            • Salsigne
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    G. Favreau : "La mine d'or de Salsigne : Les minéraux des scories de Villagnère", Le Règne Minéral, hors série, 3, 55-60, 1997
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Schenkenzell
          • Wittichen
            • Heubach Valley
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		KOLITSCH, U. (1995): Phaunouxit, ein Neufund von der Grube Clara. - Erzgräber 9 (2), 77-80; BLAß, G. & GRAF, H. W. (1995): Neufunde von bekannten Fundstellen (13). - Mineralien-Welt 6 (3), 47-51; WALENTA, K. (1995): Neue Mineralfunde von der Grube Clara. 6. Folge, 2. Teil. - Lapis 20 (6), 41 und 46-49.
    • Hesse
      • Richelsdorf District
        • Bauhaus
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Nentershausen
          • 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
    		Lapis 30(7/8):41-70 (2005)
    Ireland
     
    • Co. Kerry
      • Killarney
    		S. MORETON, P. DAVIDSON, D. I. GREEN and G. RYBACK (1999) Unusual Supergene Minerals at Muckross Mine, Killarney, Co. Kerry. Irish Journal of Earth Sciences 17:19-24
    UK
     
    • England
      • Devon
        • Okehampton area (Northern Dartmoor)
          • Belstone
    		Braithwaite, R.S.W., et al., Journal of the Russell Society 6(2), 100-101(1996):
    USA
     
    • Michigan
      • Keweenaw Co.
        • Mohawk
    		[Mineralogical Record - Vol 23 No. 2]
    • Nevada
      • Humboldt Co.
        • Osgood Mts
          • Potosi District
            • Adam Peak
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Mineral and/or Locality  
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