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Alsakharovite-Zn

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Alsakharovite-Zn
General
CategoryMineral
Formula
(repeating unit)
NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O
IMA symbolAsk-Zn
Identification
ColorWhite, light brown, colourless
CleavageNone Observed
FractureIrregular/Uneven
Mohs scale hardness5
LusterVitreous
StreakWhite
DiaphaneityTransparent, Translucent
Specific gravity2.9

Alsakharovite-Zn (IMA symbol: Ask-Zn[1]) is an extremely rare alkaline strontium zinc titanium silicate mineral from the cyclosilicates class, with the chemical formula NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O, from alkaline pegmatites. It belongs to the labuntsovite group.[2][3]

The mineral crystallizes in the monoclinic system with space group Cm.[4]

References

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  1. ^ Warr, L.N. (2021). "IMA-CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Pekov I. V., Chukanov N. V., Zadov A. E., Rozenberg K. A. and Rastsveateva R. K. 2003: Alsakharovite-Zn, NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4.7H2O, a new mineral of the labuntsovite group from Lovozero Massif, Kola Peninsula. Zapiski Vserossiyskogo mineralogicheskogo obshchestva, 132(1), pp. 52-58 (in Russian); [1]
  3. ^ http://www.mindat.org/min-26417.html Mindat
  4. ^ Rozenberg, K.A.; Rastsvetaeva, R.K.; Pekov, I.V.; Chukanov, N.V. (2002). "New Zn-rich representative of the labuntsovite group: crystal structure and microtwinning". Doklady Chemistry. 383 (4/6): 110–113. doi:10.1023/A:1015456306621. S2CID 92138051.