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Berezanskite

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About BerezanskiteHide

Formula:
KTi2Li3Si12O30
Colour:
White
Lustre:
Vitreous, Pearly
Hardness:
2½ - 3
Specific Gravity:
2.66
Crystal System:
Hexagonal
Member of:
Name:
Named after Anatolyi Vladimirovich Berezansky (Анатолия Владимировича Березанского) (b. 1948), who mapped the geology of remote areas of the Turkestan-Alai range, in Tajikistan.
Isostructural with:
The Ti analogue of brannockite and sogdianite. Chemically somewhat similar to orlovite. The structure is based on the framework of [T(2)Li3T(1)Si12O30] group, containing, i.a., LiO4 tetrahedra. The A (Ti), B (◻), and C (K) sites are interstitial. The <C-O> distance is in inverse relation to the B site occupancy.


Classification of BerezanskiteHide

Approved
First Published:
1997
9.CM.05

9 : SILICATES (Germanates)
C : Cyclosilicates
M : [Si6O18]12- 6-membered double rings (sechser-Doppelringe)

Physical Properties of BerezanskiteHide

Vitreous, Pearly
Colour:
White
Streak:
White
Hardness:
2½ - 3 on Mohs scale
Hardness:
VHN20=68.5 kg/mm2 - Vickers
Cleavage:
Perfect
basal cleavage {0001}
Density:
2.66(2) g/cm3 (Measured)    2.674 g/cm3 (Calculated)

Optical Data of BerezanskiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.635 nε = 1.630
Max Birefringence:
δ = 0.005
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of BerezanskiteHide

Formula:
KTi2Li3Si12O30
Idealised Formula:
K□2Li3Ti2[Si12O30]

Crystallography of BerezanskiteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P6/mcc
Cell Parameters:
a = 9.903 Å, c = 14.274 Å
Ratio:
a:c = 1 : 1.441
Unit Cell V:
1211.9 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.15 Å(40)
4.29 Å(50)
4.07 Å(85)
3.57 Å(80)
3.16 Å(100)
2.895 Å(95)

Type Occurrence of BerezanskiteHide

General Appearance of Type Material:
Occurs as aggregates, up to 2x3 mm, and as vein-like aggregates to 3x20 mm, consisting of platy grains up to 0.6 mm across.
Place of Conservation of Type Material:
Mining museum of the St. Petersburg Mining Institute, Russia and in the Ilmen Natural Reserve museum, Miass, Russia.
Associated Minerals at Type Locality:
Reference:
Pautov, L.A., Agakhanov, A.A. (1997) Berezanskite KLi3Ti2Si12O30 – a new mineral. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 126(4): 75-80.

Synonyms of BerezanskiteHide

Other Language Names for BerezanskiteHide

Simplified Chinese:钛锂大隅石
Spanish:Berezanskita
Traditional Chinese:鈦鋰大隅石

Relationship of Berezanskite to other SpeciesHide

Member of:
Other Members of this group:
Agakhanovite-(Y)(YCa)□2KBe3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
AlmaruditeK(◻,Na)2(Mn,Fe,Mg)2[(Be,Al)3Si12]O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
AluminosugiliteKNa2Al2Li3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
ArmeniteBaCa2Al6Si9O30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
BrannockiteKSn2(Li3Si12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
ChayesiteK(Mg,Fe2+)4Fe3+[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
DarapiositeKNa2Mn2(Li2ZnSi12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
DusmatoviteKK2Mn2(Zn2LiSi12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
EifeliteKNa3Mg4Si12O30Hex.
FriedrichbeckeiteK(◻Na)Mg2(Be2Mg)Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Klöchite(Fe2+Fe3+)◻2KZn3(Si12O30)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Merrihueite(K,Na)2(Fe2+,Mg)5Si12O30Hex.
MilariteK2Ca4Al2Be4Si24O60 · H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mcc
OftedaliteKSc22Be3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.
Osumilite-(Mg)KMg2Al3(Al2Si10)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
RoedderiteKNaMg2(Mg3Si12)O30Hex. 6 m2 : P62c
ShibkoviteK2Ca2(Zn3Si12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
SogdianiteKZr2Li3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
SugiliteKNa2Fe3+2(Li3Si12)O30Hex.
TrattneriteFe3+2(Mg3Si12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
UM1990-73-SiO:KMnNaZn(K,Na)2Zn3Mn1.5Si12O30Hex.
Unnamed (Mn3+-dominant analog of Sugilite)KNa2(Mn3+,Fe3+,Al)2Li3Si12O30
YagiiteNaMg2(AlMg2Si12)O30Hex. 6/mmm (6/m 2/m 2/m)

Related Minerals - Nickel-Strunz GroupingHide

9.CM.Agakhanovite-(Y)(YCa)□2KBe3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05ArmeniteBaCa2Al6Si9O30 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.CM.05BrannockiteKSn2(Li3Si12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05ChayesiteK(Mg,Fe2+)4Fe3+[Si12O30]Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05DarapiositeKNa2Mn2(Li2ZnSi12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05EifeliteKNa3Mg4Si12O30Hex.
9.CM.05Merrihueite(K,Na)2(Fe2+,Mg)5Si12O30Hex.
9.CM.05MilariteK2Ca4Al2Be4Si24O60 · H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05Osumilite-(Mg)KMg2Al3(Al2Si10)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05Osumilite(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30Hex.
9.CM.05PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05RoedderiteKNaMg2(Mg3Si12)O30Hex. 6 m2 : P62c
9.CM.05SogdianiteKZr2Li3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05SugiliteKNa2Fe3+2(Li3Si12)O30Hex.
9.CM.05YagiiteNaMg2(AlMg2Si12)O30Hex. 6/mmm (6/m 2/m 2/m)
9.CM.05DusmatoviteKK2Mn2(Zn2LiSi12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05ShibkoviteK2Ca2(Zn3Si12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05AlmaruditeK(◻,Na)2(Mn,Fe,Mg)2[(Be,Al)3Si12]O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
9.CM.05TrattneriteFe3+2(Mg3Si12)O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.05OftedaliteKSc22Be3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.9.CM.AluminosugiliteKNa2Al2Li3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.CM.10FaizieviteK2Na(Ca6Na)Ti4Li6[Si6O18]2[Si12O30]F2Tric. 1 : P1

Fluorescence of BerezanskiteHide

Bright bluish white fluorescence in short-wave ultraviolet light

Other InformationHide

IR Spectrum:
Absorption bands at 465, 540, 620, 790, 980, and 1130 cm-1.
Notes:
Insoluble in water or 1:1 HCl
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 BerezanskiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pautov, L.A., Agakhanov, A.A. (1997) Berezanskite KLi3Ti2Si12O30 – a new mineral. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva: 126(4): 75-80.
Jambor, J.L., Pertsev, N.N., Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 907-911.
Mandarino, J.A. (1998) Abstracts of New Mineral Descriptions (Department). Mineralogical Record: 29(5): 467.
Hawthorne, F.C., Sokolova, E., Pautov, L.A., Agakhanov, A.A., Karpenko, V.Y. (2016) Refinement of the crystal structure of berezanskite, Ti22KLi3(Si12O30). Mineralogical Magazine: 80: 733-737.
Gagné, O.C., Hawthorne, F.C. (2016) Chemographic exploration of the milarite-type structure. The Canadian Mineralogist: 54: 1229-1247.

Internet Links for BerezanskiteHide

Localities for BerezanskiteHide

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)
 
  • Districts of Republican Subordination
Canadian Mineralogist 42:107-119 (2004); Karpenko, V., & Pautov, L. (2002). Formation of baotite in alcaline rocks of a moraine of Dara-i-Pioz glacier, Tadjikistan. Neues Jahrbuch für Mineralogie-Monatshefte, 2002(10), 459-467.
 
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