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Theoparacelsite

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Theophrastus Philippus Aureolus Bombastus von Hohenheim
Formula:
Cu3(As2O7)(OH)2
System:
Orthorhombic
Colour:
Dark pistachio green
Lustre:
Adamantine, Vitreous
Name:
For Swiss scientist Paracelsus, whose full name was Philippus
Theophrastus Aureolus Bombastus von Hohenheim (1493–1541), an eminent physician, chemist, toxicologist and alchemist who also worked in metallurgy and in mineralogy.
Related to lapeyreite.


Classification of Theoparacelsite

Approved
Approval Year:
1998
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

Physical Properties of Theoparacelsite

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

Optical Data of Theoparacelsite

Type:
Biaxial (+)
RI values:
nα = 1.810 nβ = 1.820 nγ = 1.860
2V:
Measured: 57° , Calculated: 56°
Max Birefringence:
δ = 0.050
Image 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:
Cu3(As2O7)(OH)2
IMA Formula:
Cu3(OH)2As2O7
Elements listed in formula:

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.
X-Ray Powder Diffraction Data:
d-spacingIntensity
4.065(15)
3.104(100)
2.486(70)
2.400(25)
2.330(15)
1.672(30)
1.596(25)
1.330(25)

Type Occurrence of Theoparacelsite

Place of Conservation of Type Material:
Natural History Museum of Geneva, Switzerland
Geological Setting of Type Material:
Oxidation zone.

Relationship of Theoparacelsite to other Species

8.BB.XArsenowagneriteMg2(AsO4)F
8.BB.05AmblygoniteLiAl(PO4)F
8.BB.05MontebrasiteLiAl(PO4)(OH)
8.BB.05TavoriteLiFe3+(PO4)(OH)
8.BB.10Triplite(Mn2+,Fe2+)2(PO4)(F,OH)
8.BB.10Zwieselite(Fe2+,Mn2+)2(PO4)F
8.BB.15SarkiniteMn22+(AsO4)(OH)
8.BB.15Triploidite(Mn2+,Fe2+)2(PO4)(OH)
8.BB.15Wagnerite(Mg,Fe2+)2(PO4)F
8.BB.15Wolfeite(Fe2+,Mn2+)2(PO4)(OH)
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)O
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)O
8.BB.15HydroxylwagneriteMg2(PO4)(OH)
8.BB.20HoltedahliteMg2(PO4)(OH)
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,☐)
8.BB.30AdamiteZn2(AsO4)(OH)
8.BB.30EveiteMn22+(AsO4)(OH)
8.BB.30LibetheniteCu2(PO4)(OH)
8.BB.30OliveniteCu2(AsO4)(OH)
8.BB.30ZincolibetheniteCuZn(PO4)(OH)
8.BB.30ZincoliveniteCuZn(AsO4)(OH)
8.BB.30AuriacusiteFe3+Cu2+(AsO4)O
8.BB.35ParadamiteZn2(AsO4)(OH)
8.BB.35TarbuttiteZn2(PO4)(OH)
8.BB.40BarbosaliteFe2+Fe23+(PO4)2(OH)2
8.BB.40HentscheliteCuFe23+(PO4)2(OH)2
8.BB.40Lazulite(Mg,Fe2+)Al2(PO4)2(OH)2
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2
8.BB.40WilhelmkleiniteZnFe23+(AsO4)2(OH)2
8.BB.45TrolleiteAl4(PO4)3(OH)3
8.BB.50NamibiteCu(BiO)2(VO4)(OH)
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6
8.BB.60UrusoviteCuAl(AsO4)O
8.BB.70TuraniteCu5(VO4)2(OH)4
8.BB.75StoiberiteCu5(VO4)2O2
8.BB.80FingeriteCu11(VO4)6O2
8.BB.85AverieviteCu6(VO4)2O2Cl2
8.BB.90LipscombiteFe2+Fe23+(PO4)2(OH)2
8.BB.90RichelliteCaFe23+(PO4)2(OH,F)2
8.BB.90ZinclipscombiteZnFe23+(PO4)2(OH)2

Other Names for Theoparacelsite

Name in Other Languages:
Simplified Chinese:赛羟砷铜石

Other Information

Other Information:
Soluble in HCl.
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 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

mindat.org URL:
https://www.mindat.org/min-10589.html
Please feel free to link to this page.

Localities for Theoparacelsite

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.
France (TL)
 
  • 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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