Atlasovite Mineral Data

General Atlasovite Information

Chemical Formula:

Cu6Fe+++Bi+++O4(SO4)5•KCl

Composition:

Molecular Weight = 1,264.97 gm

Potassium 3.09 % K 3.72 % K₂O

Iron 4.41 % Fe 6.31 % Fe₂O₃

Copper 30.14 % Cu 33.94 % Cu₂O

Bismuth 16.52 % Bi 18.42 % Bi₂O₃

Sulfur 12.67 % S 31.65 % SO₃

Chlorine 2.80 % Cl 2.80 % Cl

- % Cl -0.63 % -O=Cl₂

Oxygen 30.36 % O

______ ______

100.00 % 96.21 % = TOTAL OXIDE

Empirical Formula:

Cu₆Fe³⁺BiO₄(SO₄)₅(KCl)

Environment:

Volcanic sublimate.

IMA Status:

Approved IMA 1987

Locality:

Tolbachik fissure volcano, Kamchatka Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Vladimir Vasilï¿½evich Atlasov (1661/1664-1711), Russian traveller who first explored the Kamchatka Peninsula.

Name Pronunciation:

Atlasovite + Pronunciation

Atlasovite Image

Images:

Atlasovite

Comments: Small brown crystal fragment with inset image of the peg support in a sample box.
Location: Tolbachik Volcano, Main Fracture, North Breakthrough, Kamchatka Peninsula, Russia. Scale: Not Given, See Image.
© Sergey Vasiliev / Systematic Mineralogy

Atlasovite Crystallography

Axial Ratios:

a:c = 1:2.08722

Cell Dimensions:

a = 9.86, c = 20.58, Z = 4; V = 2,000.78 Den(Calc)= 4.20

Crystal System:

Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/ncc

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

By Intensity(I/I_o): 10.41(1), 2.446(0.8), 3.431(0.7),

Physical Properties of Atlasovite

Cleavage:

{???} Perfect

Color:

Dark brown.

Density:

4.2

Diaphaneity:

Transparent

Hardness:

2-2.5 - Gypsum-Finger Nail

Luster:

Vitreous (Glassy)

Streak:

light brown

Optical Properties of Atlasovite

Gladstone-Dale:

CI meas= 0.07 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.07 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1856,KPDmeas= 0.1856,KC= 0.1996
Ncalc = 1.84

Optical Data:

Uniaxial (-), e=1.776, w=1.783, bire=0.0070.

Calculated Properties of Atlasovite

Electron Density:

Bulk Density (Electron Density)=3.92 gm/cc
note: Specific Gravity of Atlasovite =4.20 gm/cc.

Fermion Index:

Fermion Index = 0.0020361315
Boson Index = 0.9979638685

Photoelectric:

PE_Atlasovite= 300.81 barns/electron
U=PE_Atlasovite x r_electron=1,180.55 barns/cc.

Radioactivity:

GRapi = 41.69 (Gamma Ray American Petroleum Institute Units)
Concentration of Atlasovite per GRapi unit = 2.40 (%)

Estimated Radioactivity from Atlasovite - barely detectable

Atlasovite Classification

Dana Class:

30.01.17.02 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.01)where (A B)m (XO4)p Zq where m:p>2:1

(30.01.17)Dana Group

30.01.17.01 Nabokoite Cu7TeO4(SO4)5•KCl P 4/ncc 4/m 2/m 2/m

30.01.17.02 Atlasovite Cu6FeBiO4(SO4)5•KCl P 4/ncc 4/m 2/m 2/m

Strunz Class:

07.BC.20 07 - SULFATES (SELENATES, TELLURATES)

07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O

07.BC -With medium-sized and large cations

07.BC.20 Atlasovite Cu6FeBiO4(SO4)5•KCl P 4/ncc 4/m 2/m 2/m

07.BC.20 Nabokoite Cu7TeO4(SO4)5•KCl P 4/ncc 4/m 2/m 2/m

Other Atlasovite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.73,p927,1988) OPTIC PROP.(Am.Min.,Vol.73,p927,1988)

See Also:

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

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Print or Cut-and-Paste your Atlasovite Specimen Label here :

Atlasovite

Cu6Fe+++Bi+++O4(SO4)5•KCl
Dana No: 30.01.17.02 Strunz No: 07.BC.20
Locality:

Notes:

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