Chernykhite Mineral Data

General Chernykhite Information

Chemical Formula:

(Ba,Na)V+++,Al)2(Si,Al)4O10(OH)2

Composition:

Molecular Weight = 436.38 gm

Barium 8.81 % Ba 9.84 % BaO

Sodium 1.05 % Na 1.42 % Na₂O

Aluminum 14.53 % Al 27.45 % Al₂O₃

Vanadium 16.34 % V 18.89 % V₂O₃ / 6.25 % V₂O₅

Silicon 14.80 % Si 31.67 % SiO₂

Hydrogen 0.46 % H 4.13 % H₂O

Oxygen 44.00 % O

______ ______

100.00 % 99.65 % = TOTAL OXIDE

Empirical Formula:

Ba_0.28Na_0.2V³⁺_1.1Al_0.65V⁵⁺_0.3Si_2.3Al_1.7O₁₀(OH)₂

Environment:

In small veinlets cutting carbonate rocks interbedded with vanadium-rich Lower Paleozoic shales.

IMA Status:

Approved IMA 1972

Locality:

From "northwestern Karatu" [Kara-Tau Mountains], southern Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named for V. V. Chernykh, Professor at the Mining Institute, St. Petersburg, Russia.

Chernykhite Image

Images:

Chernykhite

Comments: Dark green flake of chernykhite.
Location: Balasauskandyk, Juzno-Kazahstan, Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Chernykhite Crystallography

Axial Ratios:

a:b:c =0.5761:1:2.1806

Cell Dimensions:

a = 5.29, b = 9.182, c = 20.023, Z = 4; beta = 95.68° V = 967.80 Den(Calc)= 2.99

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.33(1), 2.607(0.7), 1.66(0.6),1.996(0.6), 1.53(0.5), 3.01(0.5), 2.887(0.4),

Physical Properties of Chernykhite

Cleavage:

{001} Perfect

Color:

Dark green, Olive green.

Density:

3.14

Diaphaneity:

Transparent to Translucent

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Hardness:

3-4 - Calcite-Fluorite

Luster:

Vitreous (Glassy)

Streak:

greenish white

Optical Properties of Chernykhite

Gladstone-Dale:

CI meas= 0.045 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2266,KPDmeas= 0.2158,KC= 0.226
Ncalc = 1.68 - 1.71

Optical Data:

Biaxial (-), a=1.64-1.643, b=1.686-1.691, g=1.702-1.704, bire=0.0610-0.0620, 2V(Calc)=52-58, 2V(Meas)=11-12.

Calculated Properties of Chernykhite

Electron Density:

Bulk Density (Electron Density)=2.89 gm/cc
note: Specific Gravity of Chernykhite =2.99 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Chernykhite= 40.69 barns/electron
U=PE_Chernykhite x rElectron Density= 117.57 barns/cc.

Radioactivity:

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

Chernykhite Classification

Dana Class:

71.02.02a.03 (71)Phyllosilicate Sheets of Six-Membered Rings

(71.02)with 2:1 Layers

(71.02.02a)Mica Group (Muscovite subgroup)

71.02.02a.01 Muscovite KAl2(Si3Al)O10(OH,F)2 C 2/m 2/m

71.02.02a.02 Paragonite NaAl2(Si3Al)O10(OH)2 C 2/c,Cc Mono

71.02.02a.03 Chernykhite (Ba,Na)V,Al)2(Si,Al)4O10(OH)2 C 2/c 2/m

71.02.02a.04 Roscoelite K(V,Al,Mg)2AlSi3O10(OH)2 C 2/m 2/m

71.02.02a.05 Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2 C 2/m 2/m

71.02.02a.06 Celadonite K(Mg,Fe)(Fe,Al)[Si4O10](OH)2 C 2/m 2/m

71.02.02a.06b Ferroceladonite! K2FeFeSi8O20(OH)4 C 2/m 2/m

71.02.02a.06c Ferroaluminoceladonite! K2Fe2Al2Si8O20(OH)4 C 2/m 2/m

71.02.02a.06d Aluminoceladonite! KAl(Mg,Fe)[]Si4O10(OH)2 2/m

71.02.02a.06e Chromceladonite! KCrMg(Si4O10)(OH)2 C 2 2

71.02.02a.07 Tobelite (NH4,K)Al2(Si3Al)O10(OH)2 C 2/m 2/m

71.02.02a.08 Nanpingite Cs(Al,Mg,Fe,Li)2(Si3Al)O10(OH,F)2 C 2/c 2/m

71.02.02a.09 Boromuscovite KAl2(Si3B)O10(OH,F)2 C 2/m 2/m

71.02.02a.10 Montdorite (K,Na)(Fe,Mn,Mg)2.5[Si4O10](F,OH)2 C 2/c 2/m

71.02.02a.11 Chromphyllite! (K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2 C 2c 2/m

71.02.02a.12 Shirokshinite! K(NaMg2)Si4O10F2 C 2/m 2/m

Strunz Class:

09.EC.15 09 - SILICATES (Germanates)

09.E - Phyllosilicates

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

09.EC.15 Boromuscovite KAl2(Si3B)O10(OH,F)2 C 2/m 2/m

09.EC.15 Celadonite K(Mg,Fe)(Fe,Al)[Si4O10](OH)2 C 2/m 2/m

09.EC.15 Chernykhite (Ba,Na)V,Al)2(Si,Al)4O10(OH)2 C 2/c 2/m

09.EC.15 Chromphyllite! (K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2 C 2c 2/m

09.EC.15 Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2 C 2/m 2/m

09.EC.15 Aluminoceladonite! KAl(Mg,Fe)[]Si4O10(OH)2 2/m

09.EC.15 Ferroaluminoceladonite! K2Fe2Al2Si8O20(OH)4 C 2/m 2/m

09.EC.15 Ferroceladonite! K2FeFeSi8O20(OH)4 C 2/m 2/m

09.EC.15 Montdorite (K,Na)(Fe,Mn,Mg)2.5[Si4O10](F,OH)2 C 2/c 2/m

09.EC.15 Nanpingite Cs(Al,Mg,Fe,Li)2(Si3Al)O10(OH,F)2 C 2/c 2/m

09.EC.15 Tobelite (NH4,K)Al2(Si3Al)O10(OH)2 C 2/m 2/m

09.EC.15 Roscoelite K(V,Al,Mg)2AlSi3O10(OH)2 C 2/m 2/m

09.EC.15 Muscovite KAl2(Si3Al)O10(OH,F)2 C 2/m 2/m

09.EC.15 Paragonite NaAl2(Si3Al)O10(OH)2 C 2/c,Cc Mono

09.EC.15 Tainiolite KLiMg2Si4O10F2 C 2/m 2/m

09.EC.15 Chromceladonite! KCrMg(Si4O10)(OH)2 C 2 2

09.EC.15 Ganterite! [Ba0.5(Na,K)0.5]Al2(Si2.5Al1.5O10)(OH)2 C 2/c 2/m

Other Chernykhite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic2)

See Also:

Links to other databases for Chernykhite :
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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Chernykhite

(Ba,Na)V+++,Al)2(Si,Al)4O10(OH)2
Dana No: 71.02.02a.03 Strunz No: 09.EC.15
Locality:

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