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Kratochvílite

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Kladno Mine (Nejedlý I Mine; Zdeněk Nejedlý Mine; Schoeller Mine; Schöller Mine), Libušin, Kladno, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
© O. Dziallas

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Formula:
C
 
13
H
 
10
System:Orthorhombic


Organic compound formed in burning pyritic shale or coal fires. It is uncertain whether kratochvillite is the chemical fluorene (C13H10) or anthracene (C14H10) - further study of type material needed.

Classification of Kratochvílite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:9/B.02-10
Nickel-Strunz 10th (pending) edition ID:10.BA.25

10 : ORGANIC COMPOUNDS
B : Hydrocarbons
A : Hydrocarbons
Dana 8th edition ID:50.3.1.1

50 : ORGANIC COMPOUNDS
3 : Hydrocarbons
Hey's CIM Ref.:32.4

32 :
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Type Occurrence of Kratochvílite

Type Locality:Kladno Mine (Nejedlý I Mine; Zdeněk Nejedlý Mine; Schoeller Mine; Schöller Mine), Libušin, Kladno, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1937

Crystallography of Kratochvílite

Crystal System:Orthorhombic
Cell Parameters:a = 8.47Å, b = 5.7Å, c = 18.87Å
Ratio:a:b:c = 1.486 : 1 : 3.311
Unit Cell Volume:V 911.02 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
4.68 (100b)
9.39 (70)
4.21 (70b)
3.79 (50)
3.38 (90)
2.54 (60)
2.45 (50)
Comments:Data for synthetic C13H10.

Optical Data of Kratochvílite

Type:Biaxial (+)
RI values: nα = 1.578 nβ = 1.663 nγ = 1.919
Maximum Birefringence:δ = 0.341

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:very weak

Chemical Properties of Kratochvílite

Formula:
C
 
13
H
 
10
Essential elements:C, H
All elements listed in formula:C, H

Relationship of Kratochvílite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
10.BA.05Fichtelite
C
 
19
H
 
34
10.BA.10Hartite
C
 
20
H
 
34
10.BA.15Dinite
C
 
20
H
 
36
10.BA.20Idrialite
C
 
22
H
 
14
10.BA.30Carpathite
C
 
24
H
 
12
10.BA.30Karpatite
10.BA.35Phylloretine
C
 
18
H
 
18
10.BA.40Ravatite
C
 
14
H
 
10
10.BA.45Simonellite
C
 
19
H
 
24
10.BA.50Evenkite
C
 
21
H
 
44
Related Minerals - Hey's Index Grouping:

- +
32.1Evenkite
C
 
21
H
 
44
32.2 Fitchtelite
32.3Simonellite
C
 
19
H
 
24
32.5Idrialite
C
 
22
H
 
14
32.6Carpathite
C
 
24
H
 
12
32.7Refikite
C
 
20
H
 
32
O
 
2
32.8Flagstaffite
C
 
10
H
 
22
O
 
3
32.9Hoelite
C
 
14
H
 
8
O
 
2
32.10Kladnoite
C
 
6
H
 
4
(CO)
 
2
NH
32.11Acetamide
CH
 
3
CONH
 
2
32.12Guanine
C
 
5
H
 
5
N
 
5
O
32.13Urea
CO(NH
 
2
)
 
2
32.14Uricite
C
 
5
H
 
4
N
 
4
O
 
3
32.15Abelsonite
Ni(C
 
31
H
 
32
N
 
4
)

Other Names for Kratochvílite

Synonyms:
AnthraceneFluorene
Other Languages:
French:Anthracène
German:Anthracen
Kratochvilit
Spanish:Kratochvilita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Kratochvílite

Reference List:

- +
Rost, R. (1937): The minerals of the burning coal heaps in the vicinity of Kladno. Rozpravy Ceske Akademie, Kl II, 47(11), 6 pp.

American Mineralogist (1938): 23: 667. (abs.)

Brown, G.M. and M.H. Bortner (1954): On the crystal and molecular structure of fluorene. Acta Crystallogr., 7, 139.

Witzke, T. (1995): Kratochvilit, C13H10 oder C14H10? Mineralien-Welt 6(4), 25 (in German).

Internet Links for Kratochvílite

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    • Localities for Kratochvílite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
    		Zacek, V., Oplustil, S., Mayova, A. & Meyer, F. R. (1995): Die Mineralien von Kladno in Mittelböhmen, Tschechische Republik. Mineralien-Welt 6 (1), 13-30 (in German).
          • Libušin
    		American Mineralogist (1938): 23: 667.
      • Hradec Králové Region
        • Trutnov (Trautenau)
          • Radvanice
    		Žáček, V., Ondruš, P.: Mineralogy of recently formed sublimates from Kateřina colliery in Radvanice, Eastern Bohemia, Czech Republic. Bulletin of the Czech geological survey, 1998, vol. 73, no. 2, s. 289-302.
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