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Fettelite

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Glasberg quarry, Nieder-Beerbach, Nieder-Ramstadt, Odenwald, Hesse, Germany
© Stephan Wolfsried

Show Fettelite Photos (13)
Formula:
Ag
 
24
HgAs
 
5
S
 
20
System:TrigonalColour:Dark violet to scarlet
Lustre:Adamantine, MetallicHardness:4
Name:Named for M. Fettel, a collector who first observed it.


Easy to confuse with polybasite.

Classification of Fettelite

IMA status:Approved 1994
Strunz 8th edition ID:2/E.06-40
Nickel-Strunz 10th (pending) edition ID:2.LA.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
A : Without essential Pb
Dana 8th edition ID:3.2.10.

3 : SULFOSALTS
2 : ø = 4
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Type Occurrence of Fettelite

Type Locality:Glasberg quarry, Nieder-Beerbach, Nieder-Ramstadt, Odenwald, Hesse, Germany

Physical Properties of Fettelite

Lustre:Adamantine, Metallic
Colour:Dark violet to scarlet
Streak:vermillion
Hardness (Mohs):4

Crystallography of Fettelite

Crystal System:Trigonal
Cell Parameters:a = 15.00Å, c = 15.46Å
β = (1)°
Ratio:a:c = 1 : 1.031
Unit Cell Volume:V 3,012.47 ų (Calculated from Unit Cell)
Morphology:Platy
Twinning:Intimately twinned with six twin domains.
Comment:Strong hexagonal pseudosymmetry.
X-Ray Powder Diffraction:
d-spacingIntensity
3.175 (60)
3.091 (100)
2.998 (40)
2.755 (30)

Chemical Properties of Fettelite

Formula:
Ag
 
24
HgAs
 
5
S
 
20
Essential elements:Ag, As, Hg, S
All elements listed in formula:Ag, As, Hg, S

Relationship of Fettelite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.LA.10Dervillite
Ag
 
2
AsS
 
2
2.LA.15Daomanite
CuPtAsS
 
2
2.LA.20Vaughanite
TlHgSb
 
4
S
 
7
2.LA.25Criddleite
TlAg
 
2
Au
 
3
Sb
 
10
S
 
10
2.LA.35Chaméanite
(Cu,Fe)
 
4
As(Se,S)
 
4
2.LA.40Arcubisite
Ag
 
6
CuBiS
 
4
2.LA.45Mgriite
Cu
 
3
AsSe
 
3
2.LA.50Benleonardite
Ag
 
8
(Sb,As)Te
 
2
S
 
3
2.LA.55Tsnigriite
Ag
 
9
SbTe
 
3
(S,Se)
 
3
2.LA.60Borovskite
Pd
 
3
SbTe
 
4
2.LA.65Jonassonite
AuBi
 
5
S
 
4

Other Names for Fettelite

Synonyms:
IMA1994-056Sanguinite
Other Languages:
German:Fettelit
Spanish:Fettelita

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 Fettelite

Reference List:American Mineralogist, Volume 94, pages 609–615, 2009

Mineralogical Record: 28: 141.

Wang, N. & Paniagua, A. (1996): Fettelite, a new Hg-sulfosalt mineral from Odenwald. Neues Jahrbuch für Mineralogie, Monatshefte (1996): 313-320. [English abstract: Am. Min. 82,621(1997)

Internet Links for Fettelite

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    Localities for Fettelite

    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.
    Chile
     
    • Atacama Region
      • Copiapó Province
    		American Mineralogist, Volume 94, pages 609–615, 2009
    Harvard University specimen
    A. Moesta; "Chlor, Brom und Jodverbindungen des Silbers in der natur"; Facultat zu Marburg; Schnellpressendruck von C.L. Pfeil, Marburg, 1869
    Germany
     
    • Hesse
      • Odenwald
        • Nieder-Ramstadt
          • Nieder-Beerbach
    		Neues Jahrbuch Min. Monatschefte 1996, 313-320
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Boumalne-Dadès
    		Marcus Origlieri (PXRD analysis) (see also http://www.mindat.org/mesg-7-93085.html)
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 10th Nov 2009 19:28:44