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Duranusite

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L'Eguisse Mine, Duranus, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France
© Thomas Witzke

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Formula:
As
 
4
S
System:OrthorhombicColour:grey black, translucent ...
Lustre:MetallicHardness:2 - 2½
Name:For the type locality


From the type locality it occurs in tiny grey black grains encased in realgar. It is translucent dark red in very thin splinter. See talk pages.

Classification of Duranusite

IMA status:Approved 1973
Strunz 8th edition ID:2/F.02-10
Nickel-Strunz 10th (pending) edition ID:2.FA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S
Dana 8th edition ID:2.1.4.1

2 : SULFIDES
1 : AmXp, with m:p > 3:1
Hey's CIM Ref.:3.7.2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
7 : Sulphides etc. of V, As, Sb and Bi
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Type Occurrence of Duranusite

Type Locality:L'Eguisse Mine, Duranus, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France
Place of Conservation of Type Material:National School of Mines, Paris, France
Year of Discovery:1973
Geological Setting of type material:Calcite veinlets in marls and siliceous limestones
Associated Minerals at type locality:
StibniteRealgarQuartzOrpimentCalcite
Arsenic

Physical Properties of Duranusite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:grey black, translucent dark red in very tiny splinters
Streak:black
Hardness (Mohs):2 - 2½
Hardness (Vickers):VHN25=58 kg/mm2
Density (calculated):4.50 g/cm3

Crystallography of Duranusite

Crystal System:Orthorhombic
Cell Parameters:a = 3.576(2) Å, b = 6.759(2) Å, c = 10.074(5) Å
Ratio:a:b:c = 0.529 : 1 : 1.49
Unit Cell Volume:V 243.49 ų (Calculated from Unit Cell)
Z:2
Morphology:Small polycrystalline grains, fibers, wiry aggregates

Chemical Properties of Duranusite

Formula:
As
 
4
S
Essential elements:As, S
All elements listed in formula:As, S

Relationship of Duranusite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.FA.10Dimorphite
As
 
4
S
 
3
2.FA.15bPararealgar
As
 
4
S
 
4
2.FA.15aRealgar
As
 
4
S
 
4
2.FA.15cUM1970-19-S:As
As
 
4
S
 
4
2.FA.15dUM1970-18-S:As
As
 
4
S
 
4
2.FA.20Alacránite
As
 
8
S
 
9
2.FA.25Uzonite
As
 
4
S
 
5
2.FA.30Laphamite
As
 
2
(Se,S)
 
3
2.FA.30Orpiment
As
 
2
S
 
3
2.FA.35Getchellite
AsSbS
 
3
2.FA.40Wakabayashilite
[(As,Sb)
 
6
S
 
9
][As
 
4
S
 
5
]
Related Minerals - Hey's Index Grouping:

- +
3.7.1Patrónite
VS
 
4
3.7.3Dimorphite
As
 
4
S
 
3
3.7.4Realgar
As
 
4
S
 
4
3.7.5Pararealgar
As
 
4
S
 
4
3.7.6Alacránite
As
 
8
S
 
9
3.7.7Uzonite
As
 
4
S
 
5
3.7.8Orpiment
As
 
2
S
 
3
3.7.9Jeromite
3.7.10Laphamite
As
 
2
(Se,S)
 
3
3.7.11Getchellite
AsSbS
 
3
3.7.12Wakabayashilite
[(As,Sb)
 
6
S
 
9
][As
 
4
S
 
5
]
3.7.13Pääkkönenite
Sb
 
2
AsS
 
2
3.7.14Stibnite
Sb
 
2
S
 
3
3.7.15Metastibnite
Sb
 
2
S
 
3
3.7.16Tellurantimony
Sb
 
2
Te
 
3
3.7.17Bismuthinite
Bi
 
2
S
 
3
3.7.18Nevskite
Bi(Se,S)
3.7.19Guanajuatite
Bi
 
2
(Se,S)
 
3
3.7.21Ikunolite
Bi
 
4
(S,Se)
 
3
3.7.22Laitakarite
Bi
 
4
Se
 
2
S
3.7.23Poubaite
PbBi
 
2
(Se,Te,S)
 
4
3.7.24Tellurobismuthite
Bi
 
2
Te
 
3
3.7.25Součekite
PbCuBi(S,Se)
 
3
3.7.26Tsumoite
BiTe
3.7.27Pilsenite
Bi
 
4
Te
 
3
3.7.28Hedleyite
Bi
 
7
Te
 
3
3.7.29Tetradymite
Bi
 
2
Te
 
2
S
3.7.30Joséite
Bi
 
4
TeS
 
2
3.7.31Joséite-B
Bi
 
4
Te
 
2
S
3.7.32Ingodite
Bi
 
2
TeS
3.7.33Sulphotsumoite
Bi
 
3
Te
 
2
S
3.7.34Kawazulite
Bi
 
2
Te
 
2
Se
3.7.36Skippenite
Bi
 
2
TeSe
 
2
3.7.37Kochkarite
PbBi
 
4
Te
 
7
3.7.38Rucklidgeite
(Bi,Pb)
 
3
Te
 
4
3.7.39Aleksite
PbBi
 
2
Te
 
2
S
 
2
3.7.40Junoite
Cu
 
2
Pb
 
3
Bi
 
8
(S,Se)
 
16

Other Names for Duranusite

Synonyms:
IMA1973-003
Other Languages:
German:Duranusit
Simplified Chinese:红硫砷矿
Spanish:Duranusita

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 Duranusite

Reference List:

- +
Bulletin de la Société française de Minéralogie et de Cristallographie: 96: 131-134.

Internet Links for Duranusite

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  • Raman and XRD data at RRUFF project
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  • Duranusite details from Handbook of Mineralogy (PDF)
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    • Localities for Duranusite

    The 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.
    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.
    Argentina
     
    • Catamarca
      • Andalgalá Department
    		Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
    Florencia Marquez-Zavalia, James R. Craig, and Todd N. Solberg (1999) Duranusite, product of realgar alteration, Mina Capillitas, Argentina. Can Mineral 37:1255-1259
    Bulgaria
     
    • Haskovo Oblast (Khaskovo Oblast)
      • Rhodope Mts
    		Acad. Bulg. Sci. 53(4): 67-70. (2000)
    Canada
     
    • British Columbia
      • Nanaimo Mining Division
        • Vancouver Island
          • Comox District
    		Handbook of Mineralogy; Can Min (1980) 18, 525-27
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
    		Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
    France
     
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Duranus
    		[Bull.Soc.fr.Min.Crist.(1973), 96, 131-134]
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