Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Rauenthalite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
© Stephan Wolfsried

Show Rauenthalite Photos (19)



Formula:
Ca
 
3
(AsO
 
4
)
 
2
 · 10H
 
2
O
System:TriclinicColour:Colorless, white
Hardness:2
Name:Named by Roland Pierrot in 1964 for 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 1964
Strunz 8th edition ID:7/C.24-70
Nickel-Strunz 10th (pending) edition ID:8.CJ.40

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations
Dana 8th edition ID: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
mindat.org URL:http://www.mindat.org/min-3371.html
Please feel free to link to this page.

Type Occurrence of Rauenthalite

Type Locality:Gabe Gottes Mine (incl. Giftgrube), Ste Marie-aux-Mines (Markirch), Haut-Rhin, Alsace, France
General Appearance of Type Material:Colorless to cloudy white bladed crystals
Year of Discovery:1964
Geological Setting of type material:Post-mine efflorescence on mine tunnel walls.
Associated Minerals at type locality:
SainfelditeSainfelditePicropharmacolitePhaunouxitePharmacolite
Löllingite

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 (measured):2.36 g/cm3
Density (calculated):2.362 g/cm3

Crystallography of Rauenthalite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Space Group Setting:P1
Cell Parameters:a = 12.564Å, b = 12.1697Å, c = 6.1954Å
α = 89.093°, β = 79.693°, γ = 118.584°
Ratio:a:b:c = 1.032 : 1 : 0.509
Unit Cell Volume:V 812.74 ų (Calculated from Unit Cell)
Z:2
Morphology:Bladed crystals, often in somewhat radial arrangement
X-Ray Powder Diffraction:
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)
(
(
(

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
Maximum Birefringence:δ = 0.030

Chart 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:
Ca
 
3
(AsO
 
4
)
 
2
 · 10H
 
2
O
Essential elements:As, Ca, H, O
All elements listed in formula:As, Ca, H, O

Relationship of Rauenthalite 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.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.45UM1997-20-AsO:HU
U
4+
 
(HAsO
 
4
)
 
2
 · 4H
 
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.75Guérinite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
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
20.2.11Guérinite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
20.2.12Ferrarisite
Ca
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
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 Rauenthalite

Synonyms:
IMA1964-007
Other Languages:
German:Rauenthalit
Russian:Рауенталит
Spanish:Rauenthalita

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 Rauenthalite

Reference List:

- +
American Mineralogist (1965): 50: 805.

Pierrot, Roland, 1964, Contribution a la mineralogie des arseniates calciques et calcomagnesiens natuirels, Bulletin de la Société française de Minéralogie et de Cristallographie, 87: 169-211

(1982): Bulletin de la Société française de Minéralogie et de Cristallographie, 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

Search Engines:
  • Look for Rauenthalite on Google
  • Look for Rauenthalite images on Google
    • External Links:
  • Look for Rauenthalite on Webmineral
  • Look for Rauenthalite on Athena Mineralogy
  • Look for Rauenthalite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Rauenthalite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Search for minerals at Heliodor
  • Fine and rare minerals from mintreasure.com
  • Buy minerals from YourMineralCollection
  • The Arkenstone - Fine Minerals
  • Top quality minerals from Kristalle of California
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • SpiriferMinerals.com - high quality low prices
  • Rauenthalite specimens for sale - minfind.com
  • Buy RARE Minerals from Rocks of Africa
  • webminerals
  • Fabre Minerals - search for Rauenthalite specimens
  • Search for Rauenthalite on Well-Arranged Molecules
    • Specimens:The following Rauenthalite specimens are currently listed for sale on minfind.com.
    Jobs:
  • Mining & Geology Jobs

    • Localities for Rauenthalite

    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.
    Hide Locality List
    (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.
    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 (St Joachimsthal) District
    		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
     
    • Alsace
      • Haut-Rhin
        • Ste Marie-aux-Mines (Markirch)
    		Pierrot: Bull. Soc. Franc. Min. Cristallog. 87 (1964)
          • Neuenberg
    		Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    Paul De Bondt
    Pierre et Terre 1982
    in the collection of Joachim Esche
    • Languedoc-Roussillon
      • 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
        • 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.
        • Potosi District
          • Adam Peak
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 11th Feb 2013 22:10:48
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds