Hoelite Mineral Data

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General Hoelite Information

Chemical Formula:

(C6H4)2(CO)2

Composition:

Molecular Weight = 208.22 gm

Hydrogen 3.87 % H

Carbon 80.76 % C

Oxygen 15.37 % O

______

100.00 %

Empirical Formula:

C₁₂H₈C₂O₂

Environment:

From a burning coal seam.

IMA Status:

Valid Species (Pre-IMA) 1922

Locality:

Spitzbergen, Norway. Link to MinDat.org Location Data.

Name Origin:

Named for Adolf Hoel (1879-?), geologist, leader of a Norwegian expedition to Spitzbergen.

Name Pronunciation:

Hoelite

Synonym:

Anthraquinone

Hoelite Image

Images:

Hoelite

Comments: Yellow acicular crystals of hoelite with blocky yellow crystals of sulfur.
Location: Carola Mine, Freital, near Dresden, Saxony, Germany. Scale: Picture size 10 mm.
© Thomas Witzke / Abraxas-Verlag

Hoelite Crystallography

Axial Ratios:

a:b:c =3.9853:1:1.9853

Cell Dimensions:

a = 15.81, b = 3.967, c = 7.876, Z = 2; beta = 102.67° V = 481.94 Den(Calc)= 1.43

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

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

By Intensity(I/I_o): 3.52(1), 7.69(0.95), 3.36(0.8),

Crystal Structure:

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Murty B V R , Zeitschrift fur Kristallographie , 113 (1960) p.445-465, Refinement of the structure of anthraquinone

Physical Properties of Hoelite

Cleavage:

{???} Good

Color:

Yellow, Yellow green.

Density:

1.42

Streak:

light yellow

Calculated Properties of Hoelite

Electron Density:

Bulk Density (Electron Density)=1.48 gm/cc
note: Specific Gravity of Hoelite =1.43 gm/cc.

Fermion Index:

Fermion Index = 0.0089630964
Boson Index = 0.9910369036

Photoelectric:

PE_Hoelite= 0.19 barns/electron
U=PE_Hoelite x rElectron Density= 0.28 barns/cc.

Radioactivity:

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

Hoelite Classification

Dana Class:

50.04.02.01 (50)Salts of Organic Acids

(50.04)with miscellaneous formulae

(50.04.02)Dana Group

50.04.02.01 Hoelite (C6H4)2(CO)2 P 2₁/a 2/m

Strunz Class:

10.CA.15 10 - ORGANIC COMPOUNDS

10.C - Miscellaneous Organic Minerals

10.CA -Miscellaneous Organic Materials

10.CA.15 Hoelite (C6H4)2(CO)2 P 2₁/a 2/m

Other Hoelite Information

References:

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

See Also:

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

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

Hoelite

(C6H4)2(CO)2
Dana No: 50.04.02.01 Strunz No: 10.CA.15
Locality:

Notes: