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Yusupovite

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About YusupoviteHide

Formula:
Na2Zr(Si6O15)·2.5H2O
Colour:
colorless
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.69
Crystal System:
Monoclinic
Name:
yusupovite (Cyrillic: юсуповит) after Rustam Gumirovich Yusupov (born 1935), a prominent Uzbek mineralogist and a curator at the Geological Museum, Tashkent, Uzbekistan
Dimorph of:
A monoclinic dimorph of elpidite (orthorhombic). Chemically similar to terskite, catapleiite, gaidonnayite, hilairite, keldyshite, natrolemoynite, tumchaite, and some other species.


Classification of YusupoviteHide

Approved
Approval Year:
2014

Physical Properties of YusupoviteHide

Vitreous
Transparency:
Transparent
Colour:
colorless
Streak:
white
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
{110}
Fracture:
Splintery
Density:
2.69(2) g/cm3 (Measured)    2.713 g/cm3 (Calculated)

Optical Data of YusupoviteHide

Type:
Biaxial (+)
RI values:
nα = 1.563(2) nβ = 1.565(2) nγ = 1.577(2)
2V:
Measured: 42° (3), Calculated: 45°
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
strong: r > v

Chemical Properties of YusupoviteHide

Formula:
Na2Zr(Si6O15)·2.5H2O
IMA Formula:
Na2Zr(Si6O15)(H2O)3

Crystallography of YusupoviteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 14.5975(4) Å, b = 14.1100(4) Å, c = 14.4394(4) Å
β = 90.0399(4)°
Ratio:
a:b:c = 1.035 : 1 : 1.023
Unit Cell V:
2,974.09 ų (Calculated from Unit Cell)
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.05(100)
6.51(42)
5.13(53)
4.78(19)
3.24(96)
3.17(34)
3.10(69)
2.941(27)
Comments:
From Type Description.

Type Occurrence of YusupoviteHide

General Appearance of Type Material:
Prismatic grains about 2 mm in size embedded in reedmergnerite
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4543/1
Geological Setting of Type Material:
Yusupovite was found in rock samples from the Upper DaraiPioz alkaline massif in pegmatite
Associated Minerals at Type Locality:

Synonyms of YusupoviteHide

Other Language Names for YusupoviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Kentbrooksite1 photo of Yusupovite associated with Kentbrooksite on mindat.org.
Reedmergnerite1 photo of Yusupovite associated with Reedmergnerite on mindat.org.

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 YusupoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Agakhanov, A.A., Pautov, L.A., Karpenko, V.Y., Sokolova, E., Hawthorne, F.C., Pekov, I.V. and Siidra, O.I. (2014) Yusupovite, IMA 2014-022. CNMNC Newsletter No. 21, August 2014, page 799; Mineralogical Magazine, 78, 797-804.
Agakhanov, A. A., Pautov, L. A., Karpenko, V. Y., Sokolova, E., Hawthorne, F. C., Pekov, I. V., & Siidra, O. I. (2015). Yusupovite, Na2Zr (Si6O15)(H2O) 3, a new mineral species from the Darai-Pioz alkaline massif and its implications as a new microporous filter for large ions. American Mineralogist, 100(7), 1502-1508.

Internet Links for YusupoviteHide

Localities for YusupoviteHide

This 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.

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.
Tajikistan (TL)
 
  • Region of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
Agakhanov, A.A., Pautov, L.A., Karpenko, V.Y., Sokolova, E., Hawthorne, F.C., Pekov, I.V. and Siidra, O.I. (2014) Yusupovite, IMA 2014-022. CNMNC Newsletter No. 21, August 2014, page 799; Mineralogical Magazine, 78, 797-804.
Mineral and/or Locality  
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