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Radovanite

Formula:
Cu
 
2
Fe
3+
 
[(As
3+
 
O
 
2
(OH)]
 
2
[As
5+
 
O
 
4
]·H
 
2
O
System:OrthorhombicColour:Pistachio green
Lustre:Adamantine, Vitreous
Name:named for Radovan Cerny (born 1957), crystallographer, University of Geneva, Switzerland
This page provides mineralogical data about Radovanite.

Classification of Radovanite

IMA status:Approved 2000
Strunz 8th edition ID:7/C.11-040
Nickel-Strunz 10th (pending) edition ID:8.CB.40

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
mindat.org URL:http://www.mindat.org/min-11132.html
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Type Occurrence of Radovanite

Type Locality:Roua Mines (Clue de Roua), Daluis, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France
General Appearance of Type 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

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

Crystallography of Radovanite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma (P21/n 21/m 21/a)
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°
Maximum Birefringence:δ = 0.060

Chart 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:
Cu
 
2
Fe
3+
 
[(As
3+
 
O
 
2
(OH)]
 
2
[As
5+
 
O
 
4
]·H
 
2
O
Essential elements:As, Cu, Fe, H, O
All elements listed in formula:As, Cu, Fe, H, O

Relationship of Radovanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.CB.05Serrabrancaite
MnPO
 
4
·H
 
2
O
8.CB.10Hureaulite
(Mn,Fe)
 
5
H
 
2
(PO
 
4
)
 
4
·4H
 
2
O
8.CB.10Irhtemite
Ca
 
4
Mg[(HAsO
 
4
)
 
2
|(AsO
 
4
)
 
2
] · 4H
 
2
O
8.CB.10Sainfeldite
Ca
 
5
H
 
2
(AsO
 
4
)
 
4
·4H
 
2
O
8.CB.10Villyaellenite
(Mn,Ca,Zn)
 
5
(AsO
 
4
)
 
2
[AsO
 
3
(OH)]
 
2
·4H
 
2
O
8.CB.15Fluckite
CaMnH
 
2
(AsO
 
4
)
 
2
·2H
 
2
O
8.CB.15Krautite
MnHAsO
 
4
·H
 
2
O
8.CB.20Cobaltkoritnigite
(Co,Zn)[HAsO
 
4
] · H
 
2
O
8.CB.20Koritnigite
Zn[HAsO
 
4
] · H
 
2
O
8.CB.25Yvonite
Cu[HAsO
 
4
] · 2H
 
2
O
8.CB.30Geminite
Cu
 
2
[As
 
2
O
 
7
] · 3H
 
2
O
8.CB.35Schubnelite
Fe
 
2-x
V
 
2
O
 
4
(OH)
 
4
8.CB.45Kazakhstanite
Fe
 
5
V
 
3
V
 
12
O
 
39
(OH)
 
9
·9H
 
2
O
8.CB.50Kolovratite
(Zn,Ni,Cu)
 
2-5
Al
 
4-6
(Si,V
4+
 
,V
5+
 
)
 
4
(O,OH)
 
20
·7.5H
 
2
O

Other Names for Radovanite

Synonyms:
IMA2000-001
Other Languages:
German:Radovanit
Spanish:Radovanita

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 Radovanite

Reference List:Sarp, H. & Guenée, L. (2002): Radovanite, Cu2Fe+3(As+5O4)(As+3O2OH)2H2O, a new mineral: its description and crystal structure. Archives des Sciences de Genève: 55(1): 47-55.

Articles/Blogs about Radovanite

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    Localities for Radovanite

    (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
    		Riviéra Scientifique 84 (2000), 20; Archives des Sciences Genève 55 (2000), 47
    Mineral and/or Locality
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