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Radovanite

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Prof. Radovan Cerny
Formula:
Cu2Fe3+(AsO4)(HAs3+O3)2 · H2O
System:
Orthorhombic
Colour:
Pistachio green
Lustre:
Adamantine, Vitreous
Name:
Named for Radovan Cerny (born 1957), eminent crystallographer, University of Geneva, Switzerland.
(Note to be confused with rakovanite.)

Classification of Radovanite

Approved 2000
7/C.11-040
8.CB.40

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
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First Recorded Occurrence of Radovanite

General Appearance of First Recorded Material:
Crystals up to 0.15 x 0.08 x 0.02 mm in size, aggregates up to 2 mm in diameter.

Physical Properties of Radovanite

Adamantine, Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
Pistachio green
Streak:
green
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
3.9 g/cm3 (Measured)    3.79 g/cm3 (Calculated)

Crystallography of Radovanite

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 9.585Å, b = 13.143Å, c = 8.0884Å
Ratio:
a:b:c = 0.729 : 1 : 0.615
Unit Cell Volume:
V 1018.9 ų
Z:
4

Optical Data of Radovanite

Type:
Biaxial (-)
RI values:
nα = 1.800 nβ = 1.840 nγ = 1.860
2V:
Measured: 65° , Calculated: 69°
Max Birefringence:
δ = 0.060
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Weak
Comments:
X = light green to colourless, Y = yellow green, Z = pistachio green

Chemical Properties of Radovanite

Formula:
Cu2Fe3+(AsO4)(HAs3+O3)2 · H2O
Essential elements:
All elements listed in formula:

Relationship of Radovanite to other Species

8.CB.05SerrabrancaiteMnPO4 · H2O
8.CB.10Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
8.CB.10SainfelditeCaCa2Ca2(AsO4)2(HAsO4)2 · 4H2O
8.CB.10VillyaelleniteMnMn2Ca2(AsO4)2(HAsO4)2 · 4H2O
8.CB.10UM1997-09-AsO:CaHMgZn(Mg,Ca,Zn)5(AsO4)2(HAsO4)2 · 4H2O
8.CB.10NyholmiteCd3Zn2(AsO4)2(HAsO4)2 · 4H2O
8.CB.10MiguelromeroiteMnMn2Mn2(AsO4)2(HAsO4)2 · 4H2O
8.CB.15FluckiteCaMn2+(HAsO4)2 · 2H2O
8.CB.15KrautiteMn(HAsO4) · H2O
8.CB.20Cobaltkoritnigite(Co,Zn)(HAsO4) · H2O
8.CB.20KoritnigiteZn(HAsO4) · H2O
8.CB.25YvoniteCu(HAsO4) · 2H2O
8.CB.30GeminiteCu(HAsO4) · H2O
8.CB.35SchubneliteFe3+VO4 · H2O
8.CB.45KazakhstaniteFe53+V34+V125+O39(OH)9 · 9H2O
8.CB.50KolovratiteNixZny(VO4)0.67(x+y) · nH2O
8.CB.55IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2O
8.CB.60BurgessiteCo2(HAsO4)2 · 5H2O

Other Names for Radovanite

Name in Other Languages:
German:Radovanit
Simplified Chinese:拉多水砷铁铜石
Spanish:Radovanita
Traditional Chinese:拉多水砷鐵銅石

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 Radovanite

Reference List:
Sarp, H., Guénée, L. (2002): Radovanite, Cu2Fe3+(As5+O4)(As3+O2OH)2H2O, a new mineral: its description and crystal structure. Archives des Sciences Genève 55, 47-55.

Internet Links for Radovanite

Localities for Radovanite

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
 
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Guillaumes
        • Daluis
Riviéra Scientifique 84 (2000), 20; Sarp, H., Guénée, L. (2002): Radovanite, Cu2Fe3+(As5+O4)(As3+O2OH)2H2O, a new mineral: its description and crystal structure. Archives des Sciences Genève 55, 47-55.
Mineral and/or Locality  
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