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Mátraite

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Formula:
ZnS
Colour:
Brownish yellow
Lustre:
Vitreous
Hardness:
3½ - 4
Crystal System:
Trigonal
A variety of Sphalerite

A densely twinned columnar variety of sphalerite. Discredited as 2006-C.
Nitta et al. (2008) showed that the sphalerite is twinned on {111}.

Originally reported from Gyöngyösoroszi, Mátra Mts., Heves Co., Hungary.


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Classification of MátraiteHide

Discredited
2/C.13-20

2 : Sulphides
C : Sulphides with metal: sulphur, selenium and tellurium = 1:1
13 : Wurtzite series
2.8.15.1

2 : SULFIDES
8 : AmXp, with m:p = 1:1
3.4.3

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
4 : Sulphides etc. of Group II metals other than Hg (Mg, Ca, Zn, Cd)

Physical Properties of MátraiteHide

Vitreous
Colour:
Brownish yellow
Streak:
White, yellow
Hardness:
3½ - 4 on Mohs scale

Chemical Properties of MátraiteHide

Formula:
ZnS
Common Impurities:
Fe

Crystallography of MátraiteHide

Crystal System:
Trigonal
Cell Parameters:
a = 3.8 Å, c = 9.4 Å
Ratio:
a:c = 1 : 2.474
Unit Cell V:
117.55 ų (Calculated from Unit Cell)

Other Language Names for MátraiteHide

German:Matrait
Spanish:Matraita

Related Minerals - Nickel-Strunz Grouping (8th Edition)Hide

2/C.13-10Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2/C.13-30GreenockiteCdSHex. 6mm : P63mc
2/C.13-40CadmoseliteCdSeHex. 6mm : P63mc
2/C.13-50RambergiteMnSHex. 6mm : P63mc

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.4.1Niningerite(Mg,Fe2+,Mn2+)SIso.
3.4.2Oldhamite(Ca,Mg)SIso. m3m (4/m 3 2/m) : Fm3m
3.4.4SphaleriteZnSIso. 4 3m : F4 3m
3.4.5Wurtzite(Zn,Fe)SHex. 6mm : P63mc
3.4.6StilleiteZnSe
3.4.7GreenockiteCdSHex. 6mm : P63mc
3.4.8HawleyiteCdSIso. 4 3m : F4 3m
3.4.9CadmoseliteCdSeHex. 6mm : P63mc

Other InformationHide

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 MátraiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1960): 45: 1131.
Acta Mineral.-Petrogr. (Szeged)(2000): 41 (Suppl.): 124.
Burke, Ernest A.J. (2007) A Mass Discreditation of GQN Minerals. Canadian Mineralogist: 44(6): 1557-1560.
Nitta, E., Kimata, M., Hoshino, M., Echigo, T., Hamasaki, S., Nishida, N., Shimizu, M., Akasaka, T. (2008): Crystal chemistry of ZnS minerals formed as high-temperature volcanic sublimates: matraite identical with sphalerite. Journal of Mineralogical and Petrological Sciences, 103, 145-151.

Internet Links for MátraiteHide

Localities for MátraiteHide

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Tibet Autonomous Region
    • Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture)
      • Qusum Co. (Qusong Co.)
Wenji Bai, Jingsui Yang, Qingsong Fang, Binggan Yan, and Zhongming Zhang (2001): Earth Science Frontiers 8(3), 111-121
Hungary
 
  • Heves Co.
    • Mátra Mts
Am Min 45 (1960), 1131
Mineral and/or Locality  
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