Kurumsakite Mineral Data

General Kurumsakite Information

Chemical Formula:

(Zn,Ni,Cu)8Al8V2Si5O35•27(H2O) (?)

Composition:

Molecular Weight = 2,003.89 gm

Aluminum 10.77 % Al 20.35 % Al₂O₃

Vanadium 5.08 % V 9.08 % V₂O₅

Zinc 9.79 % Zn 12.18 % ZnO

Copper 6.34 % Cu 7.94 % CuO

Silicon 7.01 % Si 14.99 % SiO₂

Nickel 8.79 % Ni 11.18 % NiO

Hydrogen 2.72 % H 24.27 % H₂O

Oxygen 49.50 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn₃Ni₃Cu₂Al₈V⁵⁺₂Si₅O₃₅•27(H₂O)

Environment:

Found in fractures in a bituminous schists.

IMA Status:

Valid Species (Pre-IMA) 1954

Locality:

Kurumsak, near Dzhambul, Karatau Mountanins, Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Kurumsakite + Pronunciation

Kurumsakite Crystallography

Crystal System:

Orthorhombic Space Group: Unk

Physical Properties of Kurumsakite

Color:

Greenish yellow, Bright yellow.

Density:

4.03

Habit:

Felted - Occurs as minute crystalling aggregates with the form of felt material.

Habit:

Massive - Fibrous - Distinctly fibrous fine-grained forms.

Luster:

Vitreous - Silky

Optical Properties of Kurumsakite

Gladstone-Dale:

CI meas= 0.358 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1535,KC= 0.2391
Ncalc = 1.96

Optical Data:

Biaxial (+), a=1.616, b=1.617, g=1.622-1.623, bire=0.0060-0.0070, 2V(Calc)=46-50, 2V(Meas)=35.

Calculated Properties of Kurumsakite

Electron Density:

Bulk Density (Electron Density)=4.03 gm/cc
note: Specific Gravity of Kurumsakite =4.03 gm/cc.

Fermion Index:

Fermion Index = 0.008647965
Boson Index = 0.991352035

Photoelectric:

PE_Kurumsakite= 12.36 barns/electron
U=PE_Kurumsakite x rElectron Density= 49.82 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kurumsakite is Not Radioactive

Kurumsakite Classification

Dana Class:

78.01.06.01 (78)Unclassified silicates

(78.01)possible nesosilicates

(78.01.06)Dana Group

78.01.06.01 Kurumsakite (Zn,Ni,Cu)8Al8V2Si5O35•27(H2O)(?) Unk Ortho

Strunz Class:

09.EC.40 09 - SILICATES (Germanates)

09.E - Phyllosilicates

09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets

09.EC.40 Almbosite? Fe5Fe4V4Si3O27 Ortho ? Ortho

09.EC.40 Beidellite Na0.5Al2(Si3.5Al0.5)O10(OH)2•n(H2O) C 2/m or ORTH 2/m

09.EC.40 Kurumsakite (Zn,Ni,Cu)8Al8V2Si5O35•27(H2O)(?) Unk Ortho

09.EC.40 Montmorillonite (Na,Ca)0,3(Al,Mg)2Si4O10(OH)2•n(H2O) C 2/m 2/m

09.EC.40 Nontronite Na0.3Fe2(Si,Al)4O10(OH)2•n(H2O) C 2/m 2/m

09.EC.40 Volkonskoite Ca0.3(Cr,Mg,Fe)2(Si,Al)4O10(OH)2•4(H2O) C 2/m 2/m

09.EC.40 Yakhontovite (Ca,K)0.5(Cu,Fe,Mg)2Si4O10(OH)2•3(H2O) C 2/m 2/m

Other Kurumsakite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Kurumsakite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Kurumsakite

(Zn,Ni,Cu)8Al8V2Si5O35•27(H2O) (?)
Dana No: 78.01.06.01 Strunz No: 09.EC.40
Locality:

Notes:

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