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Shlykovite

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Big Photo

Tsentral'nyi mine (Centralnyi Mine; Central Mine), Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Knut Eldjarn

Show Shlykovite Photos (2)



Formula:
KCa[Si
 
4
O
 
9
(OH)] · 3H
 
2
O
System:MonoclinicColour:greyish white to ...


Closely related to cryptophyllite and mountainite.

Classification of Shlykovite

IMA status:Approved 2008
mindat.org URL:http://www.mindat.org/min-39308.html
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Type Occurrence of Shlykovite

Type Locality:Tsentral'nyi mine (Centralnyi Mine; Central Mine), Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Geological Setting of type material:alkaline igneous rock
Associated Minerals at type locality:
K FeldsparIlmeniteEudialyteEudialyteCryptophyllite

Physical Properties of Shlykovite

Lustre:Pearly
Colour:greyish white to slightly beige

Crystallography of Shlykovite

Crystal System:Monoclinic
Cell Parameters:a = 6.4897(4) Å, b = 6.9969(5) Å, c = 26.714(2) Å
β = 94.597(8)°
Ratio:a:b:c = 0.928 : 1 : 3.818
Unit Cell Volume:V 1,209.12 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
13.33 (100)
6.67 (76)
6.47 (55)
3.469 (45)
3.068 (57)
3.042 (45)
2.945 (62)
2.912 (90)

Chemical Properties of Shlykovite

Formula:
KCa[Si
 
4
O
 
9
(OH)] · 3H
 
2
O
Essential elements:Ca, H, K, O, Si
All elements listed in formula:Ca, H, K, O, Si

Other Names for Shlykovite

Synonyms:
IMA2008-062
Other Languages:

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 Shlykovite

Reference List:

- +
Pekov I.V., Zubkova N.V., Filinchuk Ya.E., Chukanov N.V., Zadov A.E., Pushcharovsky D.Yu., Gobechiya E.R. (2010): Shlykovite, KCa[Si4O9(OH)]·3H2O, and cryptophyllite, K2Ca[Si4O10]·5H2O, two new mineral species from the Khibiny alkaline complex, Kola Peninsula, Russia. Zapiski RMO, 139(1), 37-50.

Natalia V. Zubkova, Yaroslav E. Filinchuk, Igor V. Pekov, Dmitry Yu. Pushcharovsky, Elena R. Gobechiya (2010): Crystal structures of shlykovite and cryptophyllite. Comparative crystal chemistry of phyllosilicate minerals of the mountainite family. European Journal of Mineralogy 22, 547-555.

Internet Links for Shlykovite

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    • Localities for Shlykovite

    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.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
            • Rasvumchorr Mt
    		Pekov I.V., Zubkova N.V., Filinchuk Ya.E., Chukanov N.V., Zadov A.E., Pushcharovsky D.Yu., Gobechiya E.R. Shlykovite, KCa[Si4O9(OH)]·3H2O, and cryptophyllite, K2Ca[Si4O10]·5H2O, two new mineral species from the Khibiny alkaline complex, Kola Peninsula, Russia, Zapiski RMO, 139(1),37(2010).
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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