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Unnamed (Ni Arsenide Sulphide)

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Formula:
Ni
 
3
As
 
3
(S,Se)
 
4


See also Unnamed (Ni,Fe,Co)AsS.

Classification of Unnamed (Ni Arsenide Sulphide)

IMA status:Not Approved
mindat.org URL:http://www.mindat.org/min-31619.html
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Optical Data of Unnamed (Ni Arsenide Sulphide)

Type:Isotropic
Bireflectance:None observed.
Reflectivity:
470nmR=43.02%
550nmR=44.80%
590nmR=45.88%
650nmR=46.82%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 46.82%.
Colour in reflected light:White

Chemical Properties of Unnamed (Ni Arsenide Sulphide)

Formula:
Ni
 
3
As
 
3
(S,Se)
 
4
All elements listed in formula:As, Ni, S, Se
Analytical Data:Results of two electron microprobe analyses:
Ni   (24.1)   (29.4)
As   (27.6)   (33.9)
Hg    (7.6)    (5.4)
S    (13.9)   (15.6)
Se   (14.2)   (12.7)
Cu    (0.3)    (0.5)
Fe    (0.2)    (0.2)
Ag    (0.1)    (0.1)
Co  (< 0.1)  (< 0.1)

sum   88.0     97.8 wt.-%
Empirical Formula:
(Ni
 
3.12
Hg
 
0.17
)
 
=3.29
As
 
2.82
(S
 
3.03
Se
 
1.00
)
 
=4.03

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 Unnamed (Ni Arsenide Sulphide)

Reference List:

- +
Jiajun Liu, Minghua Zhang and Jianming Liu (1995): Description of a possibly new Ni-As-S-Se mineral phase. Acta Mineralogica Sinica 15(4), 425-427 (in Chinese, with English abstract).

Jambor, J.L., Grew, E.S., and Roberts, A.C. (1996): New Mineral Names. American Mineralogist 81, 1513-1518.

Internet Links for Unnamed (Ni Arsenide Sulphide)

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    • Localities for Unnamed (Ni Arsenide Sulphide)

    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.
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    (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.
    China
     
    • Gansu Province
      • Gannan Autonomous Prefecture
        • Luqu Co.
    		Jiajun Liu, Minghua Zhang and Jianming Liu (1995): Acta Mineralogica Sinica 15(4), 425-427.
    • Sichuan Province
      • Ngawa (Aba) Autonomous Prefecture
        • Ruo'ergai Co. (Zoigê Co.)
    		Jiajun Liu, Minghua Zhang and Jianming Liu (1995): Acta Mineralogica Sinica 15(4), 425-427.
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