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Theoparacelsite

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Formula:
Cu
 
3
(As
 
2
O
 
7
)(OH)
 
2
System:OrthorhombicColour:Dark pistachio green
Lustre:Adamantine, Vitreous
Name:
For Swiss scientist Paracelse, who was Philippus
Theophrastus van Hohenheim (1493–1541).
This page provides mineralogical data about Theoparacelsite.

Classification of Theoparacelsite

IMA status:Approved 1998
Strunz 8th edition ID:7/B.0-
Nickel-Strunz 10th (pending) edition ID:8.BB.65

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
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Type Occurrence of Theoparacelsite

Type Locality:Roua Mines (Clue de Roua), Daluis, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France
Place of Conservation of Type Material:Natural History Museum of Geneva, Switzerland
Geological Setting of type material:Oxidation zone.

Physical Properties of Theoparacelsite

Lustre:Adamantine, Vitreous
Diaphaneity (Transparency):Translucent
Colour:Dark pistachio green
Streak:Yellowish-green
Cleavage:Perfect
on {001}
Density (calculated):4.72 g/cm3

Crystallography of Theoparacelsite

Crystal System:Orthorhombic
Cell Parameters:a = 8.3212(8) Å, b = 2.9377(3) Å, c = 4.6644(5) Å
Ratio:a:b:c = 2.833 : 1 : 1.588
Unit Cell Volume:V 114.02 ų (Calculated from Unit Cell)
Morphology:Anhedral grains 0.2 × 0.1 × 0.05 mm, as smaller equidimension
crystals, and as rectangular crystals elongate [010], flattened
{001}, showing {001}, {010}, {100}, {110}, and {101}; also
pulverulent, and as pseudomorphs after olivenite.

Optical Data of Theoparacelsite

Type:Biaxial (+)
RI values: nα = 1.810 nβ = 1.820 nγ = 1.860
2V:Measured: 57° , Calculated: 56°
Maximum Birefringence:δ = 0.050

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v marked
Pleochroism:Visible
Comments:α = light olive green, β = olive green, γ = dark
green.

Chemical Properties of Theoparacelsite

Formula:
Cu
 
3
(As
 
2
O
 
7
)(OH)
 
2
Essential elements:As, Cu, H, O
All elements listed in formula:As, Cu, H, O

Relationship of Theoparacelsite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BB.05Amblygonite
LiAl(PO
 
4
)F
8.BB.05Montebrasite
LiAl(PO
 
4
)(OH)
8.BB.05Tavorite
LiFe
3+
 
(PO
 
4
)(OH)
8.BB.10Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
8.BB.10Zwieselite
Fe
2+
 
Mn
2+
 
(PO
 
4
)F
8.BB.15Sarkinite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.15Triploidite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
8.BB.15Wolfeite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Stanĕkite
Fe
3+
 
(Mn
2+
 
,Fe
2+
 
,Mg)(PO
 
4
)O
8.BB.15Joosteite
Mn
2+
 
(Mn
3+
 
,Fe
3+
 
)(PO
 
4
)O
8.BB.15Hydroxylwagnerite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Holtedahlite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Satterlyite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
2
(PO
 
4
)(OH,O)
8.BB.25Althausite
Mg
 
2
(PO
 
4
)(OH,F)
8.BB.30Adamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.30Eveite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.30Libethenite
Cu
 
2
(PO
 
4
)(OH)
8.BB.30Olivenite
Cu
 
2
(AsO
 
4
)(OH)
8.BB.30Zincolibethenite
CuZn(PO
 
4
)(OH)
8.BB.30Zincolivenite
CuZn(AsO
 
4
)(OH)
8.BB.30Auriacusite
Fe
3+
 
Cu
2+
 
(AsO
 
4
)O
8.BB.35Paradamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.35Tarbuttite
Zn
 
2
(PO
 
4
)(OH)
8.BB.40Barbosalite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Hentschelite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Wilhelmkleinite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BB.45Trolleite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
8.BB.50Namibite
Cu(BiO)
 
2
(VO
 
4
)(OH)
8.BB.55Phosphoellenbergerite
Mg
 
14
(PO
 
4
)
 
6
(HPO
 
4
,CO
 
3
)
 
2
(OH)
 
6
8.BB.60Urusovite
CuAl(AsO
 
4
)O
8.BB.70Turanite
Cu
 
5
(VO
 
4
)
 
2
(OH)
 
2
8.BB.75Stoiberite
Cu
 
5
(VO
 
4
)
 
2
O
 
2
8.BB.80Fingerite
Cu
 
11
(VO
 
4
)
 
6
O
 
2
8.BB.85Averievite
Cu
 
6
(VO
 
4
)
 
2
O
 
2
Cl
 
2
8.BB.90Lipscombite
(Fe
2+
 
,Mn
2+
 
)Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.90Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
8.BB.90Zinclipscombite
ZnFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2

Other Names for Theoparacelsite

Synonyms:
IMA1998-012
Other Languages:
German:Theoparacelsit
Spanish:Theoparacelsita

Other Information

Other Information:Soluble in HCl.
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 Theoparacelsite

Reference List:

- +
Sarp, H. and Cerny R., 2001, Theoparacelsite, Cu3(OH)2As2O7, a new mineral: its description and crystal structure: Arkives de Science Genève: 54(1): 7-14.

American Mineralogist (2002): 87: 356-357.

Internet Links for Theoparacelsite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Theoparacelsite details from Handbook of Mineralogy (PDF)
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    • Localities for Theoparacelsite

    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.
    France
     
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Guillaumes
          • Daluis
    		Sarp, H. and Cerny R., 2001, Theoparacelsite, Cu3(OH)2As2O7, a new mineral: its description and crystal structure: Archs Sci. Geneve, 54:7-14.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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: 19th Jun 2011 19:49:53
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