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Carpathite

Big Photo

Picacho Mine (Picachos Mine; Los Picachos Mine; Picahotes Mine; Benta Mine; Hernandez Mine; Ramirez Mine; Bonanza Mine), New Idria District, Diablo Range, San Benito Co., California, USA
© Antonio Borrelli

Show Carpathite Photos (13)
Formula:
C
 
24
H
 
12
System:MonoclinicHardness:1½


Chemically identical to Coronene, a polycyclic aromatic hydrocarbon (PAH).

The name replaces pendletonite (CNMMN, 1971), karpatite and coronene.

Classification of Carpathite

IMA status:Approved
Strunz 8th edition ID:9/B.02-60
Nickel-Strunz 10th (pending) edition ID:10.BA.30

10 : ORGANIC COMPOUNDS
B : Hydrocarbons
A : Hydrocarbons
Dana 8th edition ID:50.3.7.1

50 : ORGANIC COMPOUNDS
3 : Hydrocarbons
Hey's CIM Ref.:32.6

32 :
mindat.org URL:http://www.mindat.org/min-2162.html
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Type Occurrence of Carpathite

Type Locality:Olenevo Village, Transcarpathian Oblast', Ukraine
Year of Discovery:1955

Physical Properties of Carpathite

Hardness (Mohs):1½

Crystallography of Carpathite

Crystal System:Monoclinic
Cell Parameters:a = 10.03Å, b = 4.69Å, c = 16.01Å
β = 111°
Ratio:a:b:c = 2.139 : 1 : 3.414
Unit Cell Volume:V 703.10 ų (Calculated from Unit Cell)

Optical Data of Carpathite

Type:Biaxial (+/-)
RI values: nα = 1.760 - 1.780 nβ = 1.780 - 1.982 nγ = 2.050 - 2.150
Maximum Birefringence:δ = 0.290 - 0.370

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:relatively strong

Chemical Properties of Carpathite

Formula:
C
 
24
H
 
12
Essential elements:C, H
All elements listed in formula:C, H
CAS Registry number:191-07-1

CAS Registry numbers are published by the American Chemical Society

Relationship of Carpathite 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.25Kratochvílite
C
 
13
H
 
10
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
C
 
19
H
 
34
32.3Simonellite
C
 
19
H
 
24
32.4Kratochvílite
C
 
13
H
 
10
32.5Idrialite
C
 
22
H
 
14
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
 
32
H
 
36
N
 
4
]

Other Names for Carpathite

Synonyms:
CoroneneKarpatitePendletonite
Other Languages:
German:Carpathit
Karpatit
Pendletonit
Spanish:Carpathita
Karpatita
Pendletonita

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.
External LinksSearch for toxicity information at the United States National Library of Medicine

References for Carpathite

Reference List:Murdoch, Joseph and Geissman, T.A. (1967) Pendletonite, a new hydrocarbon mineral from California. American Mineralogist: 52: 611-616.

Frank-Kamenetski, V.A., S.K. Filatov & Y.L. Giller (1967), The crystal structure and chemical formula of carpathite (In Russian)(abstract): American Mineralogist (1969): 54: 329.

Murdoch, Joseph and Geissman, TA. (1968) Pendletonite: a correction American Mineralogist: 53: 1061-1062.

American Mineralogist (1979): 64: 655.

Mineralogy and Petrology: 66: 325-332.

Mineralogical Magazine 38 (1971), 103 [CNMMN, Nomenclature].

Echigo, T., Kimata, M., Maruoka, T. (2007): Crystal-chemical and carbon-isotopic characteristics of karpatite (C24H12) from the Picacho Peak Area, San Benito County, California: Evidences for the hydrothermal formation. American Mineralogist, 92, 1262-1269.

Internet Links for Carpathite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Carpathite in the Natural History Museum (London) online catalogue
  • Karpatite details from Handbook of Mineralogy (PDF)
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    Localities for Carpathite

    Hide Locality List
    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.
    (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.
    Slovakia
     
    • Prešov Region
      • Northern Slanské Mts
        • Červenica (Czerwenitza)
    		Duda,R. et. all.,1981: MIneralogia severnej časti Slanských vrchov. Min.Slovaca,Monografia 2, Bratislava, 98p
        • Jusková Voľa
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Ďuďa,R., Kaličiaková,E., 1987: Mineralogicko – paragenetické pomery Hg ložiska Merník. Min.Slovaca, 19,5,423 – 442
    Ukraine
     
    • Transcarpathian Oblast'
    		American Mineralogist (1957), 42, 120 ; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    USA
     
    • California
      • San Benito Co.
        • Diablo Range
          • New Idria District
    		No reference listed
    Murdoch, Joseph and Geissman, T.A. (1967) Pendletonite, a new hydrocarbon mineral from California. American Mineralogist: 52: 611-616; Murdoch, Joseph and Geissman, TA. (1968) Pendletonite: a correction American Mineralogist: 53: 1061-1062; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 343; Echigo, T., Kimata, M., Maruoka, T. (2007): Crystal-chemical and carbon-isotopic characteristics of karpatite (C24H12) from the Picacho Peak Area, San Benito County, California: Evidences for the hydrothermal formation. American Mineralogist, 92, 1262-1269.
    Mineral and/or Locality
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