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Rosièresite

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Formula:
(Pb, Cu, Al, P, O, H)
System:
Amorphous
Colour:
Yellow, greenish yellow ...
Lustre:
Vitreous
Hardness:
3 - 3½
Name:
For the locality at Rosières, Carmaux, Tarn, France.
An amorphous hydrous phosphate of Al with Pb and Cu. An anthropogenic substance, forming on old mine tunnel walls.

Classification of Rosièresite

Questionable/Doubtful
8.DF.10

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
F : With only medium-sized cations, (OH,etc.):RO4 > 3:1
Dana 7th ed.:
42.13.7.1
42.13.7.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
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First Recorded Occurrence of Rosièresite

General Appearance of First Recorded Material:
Opaline stalactitic masses.

Physical Properties of Rosièresite

Vitreous
Colour:
Yellow, greenish yellow to pale brown
Streak:
White
Hardness (Mohs):
3 - 3½
Density:
2.2 g/cm3 (Measured)    

Crystallography of Rosièresite

Crystal System:
Amorphous
Morphology:
Stalactitic masses with a concentric structure.

Optical Data of Rosièresite

Type:
Isotropic

Chemical Properties of Rosièresite

Formula:
(Pb, Cu, Al, P, O, H)
Essential elements:
All elements listed in formula:

Relationship of Rosièresite to other Species

8.DF.05HotsoniteAl11(SO4)3(PO4)2(OH)21 · 16H2O
8.DF.10BolivariteAl2(PO4)(OH)3 · 4-5H2O
8.DF.10EvansiteAl3(PO4)(OH)6 · 6H2O
8.DF.10Liskeardite[(Al,Fe)32(AsO4)18(OH)42(H2O)22] · 52H2O
8.DF.15Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
8.DF.20LiroconiteCu2Al(AsO4)(OH)4 · 4H2O
8.DF.25SieleckiiteCu3Al4(PO4)2(OH)12 · 2H2O
8.DF.30ChalcophylliteCu18Al2(SO4)3(AsO4)3(OH)27 · 33H2O
8.DF.35ParnauiteCu9(AsO4)2(SO4)(OH)10 · 7H2O
8.DF.40GladiusiteFe2(Fe,Mg)4(PO4)(OH)11(H2O)

Other Names for Rosièresite

Name in Other Languages:
German:Rosieresit
Spanish:Rosieresita

Other Information

Other Information:
Readily soluble in HNO3.
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 Rosièresite

Reference List:
Berthier (1841) Annales des mines: 19: 669.

Lacroix, A. (1910): Minéralogie de la France, IV, 532-533.

Pierrot, R., L. Chauris, C. LaForet (1973) "Inventaire minéralogique de la France : 29- Finistère.", B.R.G.M. Paris.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 924.

Internet Links for Rosièresite

Localities for Rosièresite

(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.
France
 
  • Brittany
    • Finistère
R.PIERROT, L. CHAURIS, C. LAFORET (1973) : "Inventaire minéralogique de la France : 29- Finistère.", B.R.G.M. Paris.
  • Midi-Pyrénées
    • Tarn
      • Carmaux
Lacroix, A. (1910): Minéralogie de la France, IV, 532-533; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 924.
Mineral and/or Locality  
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