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Uzonite

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Uzon Caldera, Kamchatka Oblast', Far-Eastern Region, Russia
© Pavel M. Kartashov

Show Uzonite Photos (4)
Formula:
As
 
4
S
 
5
System:MonoclinicColour:Yellow
Lustre:PearlyHardness:1½
Name:Named after its discovery locality, Uzon caldera, Kamchatka peninsula, Russia.
This page provides mineralogical data about Uzonite.

Classification of Uzonite

IMA status:Approved 1984
Strunz 8th edition ID:2/F.02-60
Nickel-Strunz 10th (pending) edition ID:2.FA.25

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:2.8.23.

2 : SULFIDES
8 : AmXp, with m:p = 1:1
Hey's CIM Ref.:3.7.7

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 Uzonite

Type Locality:Uzon Caldera, Kamchatka Oblast', Far-Eastern Region, Russia
Year of Discovery:1985

Physical Properties of Uzonite

Lustre:Pearly
Diaphaneity (Transparency):Transparent
Colour:Yellow
Streak:Yellow
Hardness (Mohs):1½
Cleavage:Distinct/Good

Crystallography of Uzonite

Crystal System:Monoclinic
Cell Parameters:a = 7.94Å, b = 8.08Å, c = 7.1Å
β = 100.1°
Ratio:a:b:c = 0.983 : 1 : 0.879
Unit Cell Volume:V 448.44 ų (Calculated from Unit Cell)

Optical Data of Uzonite

Type:Biaxial (+)
RI values: nα = 2.380 nγ = 2.680
Maximum Birefringence:δ = 0.300

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively strong

Chemical Properties of Uzonite

Formula:
As
 
4
S
 
5
Essential elements:As, S
All elements listed in formula:As, S

Relationship of Uzonite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.FA.05Duranusite
As
 
4
S
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.30Laphamite
As
 
2
(S,Se)
 
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
3.7.2Duranusite
As
 
4
S
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
3.7.8Orpiment
As
 
2
S
 
3
3.7.9Jeromite
3.7.10Laphamite
As
 
2
(S,Se)
 
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 Uzonite

Synonyms:
IMA1984-027Usonite
Other Languages:
German:Uzonit
Russian:Узонит
Spanish:Uzonita

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 Uzonite

Reference List:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1985): 114(3): 369-373.

American Mineralogist (1986): 71: 1280.

Luca Bindi, Valentina Popova, and Paola Bonazzi (2004), Uzonite, As4S5, from the type locality: single-crystal X-ray study and effects of exposure to light, Canadian Mineralogist: 41: 1463-1468.

Internet Links for Uzonite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Uzonite in the Natural History Museum (London) online catalogue
  • Uzonite details from Handbook of Mineralogy (PDF)
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    Localities for Uzonite

    (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.
    Romania
     
    • Harghita Co.
    		Kristály, F. & Szakáll, S. (2009): Mitt. Österr. Mineral. Ges. 155, 94. (Abs.)
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
    Google
     
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 7th Nov 2009 11:55:35